CALIFORNIA BUILDING CODE MATRIX ADOPTION TABLE CHAPTER 5 GENERAL BUILDING HEIGHTS AND AREAS

Transcription

1 CLIFORNI BUILDING CODE MTRIX DOPTION TBLE CHPTER GENERL BUILDING HEIGHT ND RE (Matrix doption Tables are non-regulatory, intended only as an aid to the user. ee Chapter for state agency authority and building applications.) dopting gency BC FM HCD D OHPD /C C /CC BCC DPH GR DWR CEC C L LC dopt entire chapter X X X X X X dopt entire chapter as amended (amended sections listed below) X X X dopt only those sections that are listed below X X X Chapter / ection Table 0 X 0. X X 06.. X 06.. X 07. X 07.0 X 08.. X Table 08.. X 08.. X Table 08. X 09. X 0.0 X 0 CLIFORNI BUILDING CODE 77

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3 CHPTER GENERL BUILDING HEIGHT ND RE ECTION 0 GENERL 0. cope. The provisions of this chapter control the height and area of structures hereafter erected and additions to existing structures. [F] 0. ddress identification. New and existing buildings shall be provided with approved address numbers or letters. Each character shall be not less than inches (0 mm) in height and not less than 0. inch (.7 mm) in width. They shall be installed on a contrasting background and be plainly visible from the street or road fronting the property. When required by the fire code official, address numbers shall be provided in additional approved locations to facilitate emergency response. Where access is by means of a private road and the building address cannot be viewed from the public way, a monument, pole or other approved sign or means shall be used to identify the structure. ddress numbers shall be maintained. ECTION 0 DEFINITION 0. Definitions. The following terms are defined in Chapter : RE, BUILDING. BEMENT. EQUIPMENT PLTFORM. GRDE PLNE. HEIGHT, BUILDING. MEZZNINE. ECTION 0 GENERL BUILDING HEIGHT ND RE LIMITTION 0. General. The building height and area shall not exceed the limits specified in Table 0 based on the type of construction as determined by ection 60 and the occupancies as determined by ection 0 except as modified hereafter. Each portion of a building separated by one or more fire walls complying with ection 706 shall be considered to be a separate building. Exceptions:. [HCD ] Limited-density owner-built rural dwellings may be of any type of construction which will provide for a sound structural condition. tructural hazards which result in an unsound condition and which may constitute a substandard building are delineated by ection 790. of the Health and afety Code.. Other than structural requirements, solar photovoltaic panels supported by a structure with no use underneath shall not constitute additional story or additional floor area and may exceed the height limit when constructed on a roof top of a building provided the following conditions are met:.. For all occupancies, the highest point of the structure/panel shall meet the lower of the two values below:. above the allowable building height per this code.. above the roof of the building immediately below... For installations on flat roofs in other than Group R- and R- occupancies, the highest point of the structure/panel shall meet the lower of the two values below:. 0 above the allowable building height per this code.. 0 above the roof of the building immediately below.. Other than structural requirements, solar photovoltaic panels supported by a structure over parking stalls shall not constitute additional story or additional floor area and may exceed the height limit as specified in exception (above) when the following conditions are met (see Figure -):. The area within the perimeter of the photovoltaic array has maximum rectangular dimension of 0 feet by 0 feet.. The distance between solar photovoltaic array structures is a minimum of 0 feet clear.. The driveway aisle separating solar photovoltaic array structures has a minimum width of feet clear.. olar photovoltaic array structure is used only for parking purposes with no storage.. Completely open on all sides (other than necessary structural supports) with no interior partitions. 0.. pecial industrial occupancies. Buildings and structures designed to house special industrial processes that require large areas and unusual building heights to accommodate craneways or special machinery and equipment, including, among others, rolling mills; structural metal fabrication shops and foundries; or the production and distribution of electric, gas or steam power, shall be 0 CLIFORNI BUILDING CODE 79

4 GENERL BUILDING HEIGHT ND RE exempt from the building height and area limitations of Table Buildings on same lot. Two or more buildings on the same lot shall be regulated as separate buildings or shall be considered as portions of one building if the building height of each building and the aggregate building area of the buildings are within the limitations of Table 0 as modified by ections 0 and 06. The provisions of this code applicable to the aggregate building shall be applicable to each building. 0.. Type I construction. Buildings of Type I construction permitted to be of unlimited tabular building heights and areas are not subject to the special requirements that allow unlimited area buildings in ection 07 or unlimited building height in ections 0.. and 0. or increased building heights and areas for other types of construction. TBLE 0 LLOWBLE BUILDING HEIGHT ND RE a, b Building height limitations shown in feet above grade plane. tory limitations shown as stories above grade plane. Building area limitations shown in square feet, as determined by the definition of rea, building, per story TYPE OF CONTRUCTION TYPE I TYPE II TYPE III TYPE IV TYPE V > GROUP B E F- F- H- H- H- H- H- I-/I-. d B B B HT B HEIGHT (feet) TORIE() RE () I- c I- L M R-,000 0, ,00 6, ,000 7,00 60, ,000,00,00,00,00 7,00 6,00,000 7,00,000,000 6,00 7,00 7,00,000 6,00 7,00,00,000 8,00 9,00 9,00 9,00,000,00,00,000 7,000 7,000,000 7,00,000,000,000 7,00,00 6,000,000,000,000,000 8,00,00 9,000 8,00 9,00 9,00 7,00 8,00 8,00,000,00 8,00 8,00,000 8,00 9,00 9,00 9,00 9,000,00,000 8,000 7,000 7,000,000 7,00 9,000,000 7,00,00 6,000,000,000,000,000 6,000,00,00 0,00 0,00 0,00,00 6,000 6,000,000,00 6,000 0,00 0,00,00,00,00,00 8,000 8,00,000,000 7,00 7,00 0,000 8,000 8,000 9,00 8,00 8,000,000,000,00 6,000 6,000 6,000 9,000 9,00 8,00,000,000,000 6,00 9,000 9,000 6,00 9,000 7,000 (continued) 80 0 CLIFORNI BUILDING CODE

5 GENERL BUILDING HEIGHT ND RE TBLE 0 continued LLOWBLE BUILDING HEIGHT ND RE a, b TYPE OF CONTRUCTION TYPE I TYPE II TYPE III TYPE IV TYPE V GROUP R- R-. R-/R-. R- - - U c B B B HT B HEIGHT (feet) TORIE() RE () 6 f,000 f 8,000 79,000,00,000 e 9,000 e,000 6,000 9,000 9,000 6,000 g 6,000 7,00 6,000 8,00,000 e 6,00 e,000 6,000 9,000,000 6,000 g 6,000 7,00 6,000 8,00 0,00 g 0,00,00 8,00 8,000,000 e 6,00 e,000,000,000 9,000 7,000 g 7,000 9,000,00,00 For I: foot = 0.8 mm, square foot = m. = building area per story, = stories above grade plane, = Unlimited, = Not permitted. a. ee the following sections for general exceptions to Table 0:. ection 0., llowable building height and story increase due to automatic sprinkler system installation.. ection 06., llowable building area increase due to street frontage.. ection 06., llowable building area increase due to automatic sprinkler system installation.. ection 07, Unlimited area buildings. b. ee Chapter for specific exceptions to the allowable height and areas in Chapter. c. ee ection 08.. for specific exceptions to construction type, allowable building areas and allowable heights. d. Restraint shall not be permitted in any building except in Group I- occupancies constructed for such use (see ection 08..). e. Nonambulatory persons shall be limited to the first stories. f. Nonambulatory persons shall be limited to the first stories. g. Nonambulatory elderly clients are not permitted in buildings of these types of construction. ee ection.. and... FIGURE - 0 CLIFORNI BUILDING CODE 8

6 GENERL BUILDING HEIGHT ND RE > ECTION 0 BUILDING HEIGHT 0. General. The building height permitted by Table 0 shall be increased in accordance with ections 0. and 0.. Exception: The building height of one-story aircraft hangars, aircraft paint hangars and buildings used for the manufacturing of aircraft shall not be limited if the building is provided with an automatic sprinkler system or automatic fire-extinguishing system in accordance with Chapter 9 and is entirely surrounded by public ways or yards not less in width than one and one-half times the building height. 0. utomatic sprinkler system increase. Where a building is equipped throughout with an approved automatic sprinkler system in accordance with ection 90..., the value specified in Table 0 for maximum building height is increased by 0 feet (6096 mm) and the maximum number of stories is increased by one. Increases are permitted in addition to the building area increase in accordance with ection 06.. In other than Group, E, H, I, L and R occupancies, high-rise buildings, and other applications listed in ection. regulated by the Office of the tate Fire Marshal, these increases are permitted in addition to the area increase in accordance with ection 06.. For Group R- buildings of Type V construction equipped throughout with an approved automatic sprinkler system in accordance with ection 90..., the value specified in Table 0 for maximum building height is increased by 0 feet (6096 mm) and the maximum number of stories is increased by one, but shall not exceed 60 feet (8 88 mm) or four stories, respectively, these increases are permitted in addition to the area increase in accordance with ection 06.. Exception: The use of an automatic sprinkler system to increase building heights shall not be permitted for the following conditions:. Buildings, or portions of buildings, classified as a Group I- occupancy of Type IIB, III, IV or V construction.. Buildings, or portions of buildings, classified as a Group H-, H-, H- or H- occupancy.. Buildings where an automatic sprinkler system is substituted for fire-resistance rated construction in accordance with Table 60, Note d.. [FM] Buildings, or portions of buildings, classified as a Group L occupancy.. [FM] Buildings, or portions of buildings, classified as a Licensed Group R-. or R- occupancy. 0. Roof structures. Towers, spires, steeples and other roof structures shall be constructed of materials consistent with the required type of construction of the building except where other construction is permitted by ection uch structures shall not be used for habitation or storage. The structures shall be unlimited in height if of noncombustible materials and shall not extend more than 0 feet (6096 mm) above the allowable building height if of combustible materials (see Chapter for additional requirements). ECTION 0 MEZZNINE ND EQUIPMENT PLTFORM 0. General. Mezzanines shall comply with ection 0.. Equipment platforms shall comply with ection Mezzanines. mezzanine or mezzanines in compliance with ection 0. shall be considered a portion of the story below. uch mezzanines shall not contribute to either the building area or number of stories as regulated by ection 0.. The area of the mezzanine shall be included in determining the fire area. The clear height above and below the mezzanine floor construction shall be not less than 7 feet ( mm). 0.. rea limitation. The aggregate area of a mezzanine or mezzanines within a room shall be not greater than one-third of the floor area of that room or space in which they are located. The enclosed portion of a room shall not be included in a determination of the floor area of the room in which the mezzanine is located. In determining the allowable mezzanine area, the area of the mezzanine shall not be included in the floor area of the room. Where a room contains both a mezzanine and an equipment platform, the aggregate area of the two raised floor levels shall be not greater than two-thirds of the floor area of that room or space in which they are located. Exceptions:. The aggregate area of mezzanines in buildings and structures of Type I or II construction for special industrial occupancies in accordance with ection 0.. shall be not greater than twothirds of the floor area of the room.. The aggregate area of mezzanines in buildings and structures of Type I or II construction shall be not greater than one-half of the floor area of the room in buildings and structures equipped throughout with an approved automatic sprinkler system in accordance with ection and an approved emergency voice/alarm communication system in accordance with ection Means of egress. The means of egress for mezzanines shall comply with the applicable provisions of Chapter Openness. mezzanine shall be open and unobstructed to the room in which such mezzanine is located except for walls not more than inches (067 mm) in height, columns and posts. Exceptions:. Mezzanines or portions thereof are not required to be open to the room in which the mezzanines are located, provided that the occupant load of the aggregate area of the enclosed space is not greater than 0.. mezzanine having two or more means of egress is not required to be open to the room in which the mezzanine is located if at least one of the 8 0 CLIFORNI BUILDING CODE

7 GENERL BUILDING HEIGHT ND RE means of egress provides direct access to an exit from the mezzanine level.. Mezzanines or portions thereof are not required to be open to the room in which the mezzanines are located, provided that the aggregate floor area of the enclosed space is not greater than 0 percent of the mezzanine area.. In industrial facilities, mezzanines used for control equipment are permitted to be glazed on all sides.. In occupancies other than Groups H and I, that are no more than two stories above grade plane and equipped throughout with an automatic sprinkler system in accordance with ection 90..., a mezzanine having two or more means of egress shall not be required to be open to the room in which the mezzanine is located. 0. Equipment platforms. Equipment platforms in buildings shall not be considered as a portion of the floor below. uch equipment platforms shall not contribute to either the building area or the number of stories as regulated by ection 0.. The area of the equipment platform shall not be included in determining the fire area in accordance with ection 90. Equipment platforms shall not be a part of any mezzanine and such platforms and the walkways, stairs, alternating tread devices and ladders providing access to an equipment platform shall not serve as a part of the means of egress from the building. 0.. rea limitation. The aggregate area of all equipment platforms within a room shall be not greater than two-thirds of the area of the room in which they are located. Where an equipment platform is located in the same room as a mezzanine, the area of the mezzanine shall be determined by ection 0.. and the combined aggregate area of the equipment platforms and mezzanines shall be not greater than two-thirds of the room in which they are located. 0.. utomatic sprinkler system. Where located in a building that is required to be protected by an automatic sprinkler system, equipment platforms shall be fully protected by sprinklers above and below the platform, where required by the standards referenced in ection Guards. Equipment platforms shall have guards where required by ection 0.. ECTION 06 BUILDING RE MODIFICTION 06. General. The building areas limited by Table 0 shall be permitted to be increased due to frontage (I f ) and automatic sprinkler system protection (I s ) in accordance with Equation -: a = { t + [ t I f ] + [ t I s ]} (Equation -) where: = llowable building area per story (square feet). a t = Tabular building area per story in accordance with Table 0 (square feet). I f = rea increase factor due to frontage as calculated in accordance with ection 06.. I s = rea increase factor due to sprinkler protection as calculated in accordance with ection Frontage increase. Every building shall adjoin or have access to a public way to receive a building area increase for frontage. Where a building has more than percent of its perimeter on a public way or open space having a width of not less than 0 feet (6096 mm), the frontage increase shall be determined in accordance with Equation -: I f = [F/P - 0.]W/0 (Equation -) where: I f = rea increase due to frontage. F = Building perimeter that fronts on a public way or open space having 0 feet (6096 mm) open minimum width (feet). P = Perimeter of entire building (feet). W = Width of public way or open space (feet) in accordance with ection Width limits. To apply this section the value of W shall be not less than 0 feet (6096 mm). Where the value of W varies along the perimeter of the building, the calculation performed in accordance with Equation - shall be based on the weighted average calculated in accordance with Equation - for portions of the exterior perimeter walls where the value of W is greater than or equal to 0 feet (6096 mm). Where the value of W is greater than 0 feet (9 mm), a value of 0 feet (9 mm) shall be used in calculating the weighted average, regardless of the actual width of the open space. W shall be measured perpendicular from the face of the building to the closest interior lot line. Where the building fronts on a public way, the entire width of the public way shall be used. Where two or more buildings are on the same lot, W shall be measured from the exterior face of each building to the opposing exterior face of each adjacent building, as applicable. Weighted average W = (L w + L w + L w )/F. (Equation -) where: L n = Length of a portion of the exterior perimeter wall. w n = Width of open space associated with that portion of the exterior perimeter wall. F = Building perimeter that fronts on a public way or open space having a width of 0 feet (6096 mm) or more. Exception: Where the building meets the requirements of ection 07, as applicable, except for compliance with the 60-foot (8 88 mm) public way or yard requirement, and the value of W is greater than 0 feet (9 mm), the value of W divided by 0 shall be limited to a maximum of. 0 CLIFORNI BUILDING CODE 8

8 GENERL BUILDING HEIGHT ND RE 06.. Open space limits. uch open space shall be either on the same lot or dedicated for public use and shall be accessed from a street or approved fire lane. 06. utomatic sprinkler system increase. Where a building is equipped throughout with an approved automatic sprinkler system in accordance with ection 90..., the building area limitation in Table 0 is permitted to be increased by an additional 00 percent (Is = ) for buildings with more than one story above grade plane and an additional 00 percent (Is = ) for buildings with no more than one story above grade plane. In other than Group, E, H, I, L and R occupancies, high-rise buildings, and other applications listed in ection. regulated by the Office of the tate Fire Marshal, these increases are permitted in addition to the height and story increases in accordance with ection 0.. For Group R- buildings of Type V construction equipped throughout with an approved automatic sprinkler system in accordance with ection 90..., these increases are permitted in addition to the height and story increase in accordance with ection 0.. Exception: The use of an automatic sprinkler system to increase the building area limitation shall not be permitted for the following conditions:. Buildings classified as a Group H- occupancy.. Buildings, or portions of buildings, classified as either a Group H- or H- occupancy. For buildings containing such occupancies, the allowable area shall be determined in accordance with ection 08.., with the sprinkler system increase applicable only to the portions of the building not classified as Group H- or H-.. Buildings where an automatic sprinkler system is substituted for fire-resistance rated construction in accordance with Table 60, Note d.. [FM] The automatic sprinkler system increase shall not apply to buildings with an occupancy in Group L. 06. ingle occupancy buildings with more than one story. The total allowable building area of a single occupancy building with more than one story above grade plane shall be determined in accordance with this section. The actual aggregate building area at all stories in the building shall not exceed the total allowable building area. Exception: single basement need not be included in the total allowable building area, provided such basement does not exceed the area permitted for a building with no more than one story above grade plane rea determination. In other than Group, E, H, I, L and R occupancies, high-rise buildings, and other applications listed in ection. regulated by the Office of the tate Fire Marshal, the total allowable building area of a single occupancy building with more than one story above grade plane shall be determined by multiplying the allowable building area per story ( a ), as determined in ection 06., by the number of stories above grade plane as listed below:. For buildings with two stories above grade plane, multiply by ;. For buildings with three or more stories above grade plane, multiply by ; and. No story shall exceed the allowable building area per story ( a ), as determined in ection 06., for the occupancies on that story. Exception: Unlimited area buildings in accordance with ection 07. For Group, E, H, I, L and R occupancies, high-rise buildings, and other applications listed in ection. regulated by the Office of the tate Fire Marshal, the total allowable building area of a single occupancy building with more than one story above grade plane shall be determined by multiplying the allowable building area per story (a), as determined in ection 06., by the number of stories above grade plane as listed below:. For buildings with two or more stories above grade plane, multiply by ;. No story shall exceed the allowable building area per story (a), as determined in ection 06., for the occupancies on that story. Exception: Unlimited area buildings in accordance with ection Mixed occupancy area determination. The total allowable building area for buildings containing mixed occupancies shall be determined in accordance with the applicable provisions of this section. single basement need not be included in the total allowable building area, provided such basement does not exceed the area permitted for a building with no more than one story above grade plane No more than one story above grade plane. For buildings with no more than one story above grade plane and containing mixed occupancies, the total building area shall be determined in accordance with the applicable provisions of ection More than one story above grade plane. For buildings with more than one story above grade plane and containing mixed occupancies, each story shall individually comply with the applicable requirements of ection 08.. For buildings with more than three stories above grade plane, the total building area shall be such that the aggregate sum of the ratios of the actual area of each story divided by the allowable area of such stories based on the applicable provisions of ection 08. shall not exceed. For other than Group, E, H, I, L and R occupancies, high-rise buildings, and other applications listed in ection. regulated by the Office of the tate Fire Marshal, buildings with more than three stories above grade plane, the total building area shall be such that the aggregate sum of the ratios of the actual area of each story divided by the allowable area of such stories based on the applicable provisions of ection 08. shall not exceed. For Group, E, H, I, L and R occupancies, high-rise buildings, and other applications listed in ection. > 8 0 CLIFORNI BUILDING CODE

9 GENERL BUILDING HEIGHT ND RE > > regulated by the Office of the tate Fire Marshal, buildings with more than two stories above grade plane, the total building area shall be such that the aggregate sum of the ratios of the actual area of each story divided by the allowable area of such stories based on the applicable provisions of ection 08. shall not exceed. ECTION 07 UNLIMITED RE BUILDING 07. General. The area of buildings of the occupancies and configurations specified in ections 07. through 07. shall not be limited. Exception: Other occupancies shall be permitted in unlimited area buildings in accordance with the provisions of ection 08.. Where ections 07. through 07. require buildings to be surrounded and adjoined by public ways and yards, those open spaces shall be determined as follows:. Yards shall be measured from the building perimeter in all directions to the closest interior lot lines or to the exterior face of an opposing building located on the same lot, as applicable. Where the building fronts on a public way, the entire width of the public way shall be used. 07. Nonsprinklered, one story. The area of a Group F- or - building no more than one story in height shall not be limited where the building is surrounded and adjoined by public ways or yards not less than 60 feet (8 88 mm) in width. 07. prinklered, one story. The area of a Group B, F, M or building no more than one story above grade plane of any construction type, shall not be limited where the building is provided with an automatic sprinkler system throughout in accordance with ection and is surrounded and adjoined by public ways or yards not less than 60 feet (8 88 mm) in width. Exception: Buildings and structures of Types I and II construction for rack storage facilities that do not have access by the public shall not be limited in height, provided that such buildings conform to the requirements of ections 07. and and Chapter of the California Fire Code Mixed occupancy buildings with Groups - and -. Group - and - occupancies of other than Type V construction shall be permitted within mixed occupancy buildings of unlimited area complying with ection 07., provided:. Group - and - occupancies are separated from other occupancies as required for separated occupancies in ection 08.. with no reduction allowed in the fire-resistance rating of the separation based upon the installation of an automatic sprinkler system;. Each area of the portions of the building used for Group - or - occupancies shall not exceed the maximum allowable area permitted for such occupancies in ection 0.; and. Exit doors from Group - and - occupancies shall discharge directly to the exterior of the building. 07. Two story. The area of a Group B, F, M or building no more than two stories above grade plane shall not be limited where the building is equipped throughout with an automatic sprinkler system in accordance with ection 90..., and is surrounded and adjoined by public ways or yards not less than 60 feet (8 88 mm) in width. 07. Reduced open space. The public ways or yards of 60 feet (8 88 mm) in width required in ections 07., 07., 07., 07.6 and 07. shall be permitted to be reduced to not less than 0 feet ( 9 mm) in width provided all of the following requirements are met:. The reduced width shall not be allowed for more than 7 percent of the perimeter of the building.. The exterior walls facing the reduced width shall have a fire-resistance rating of not less than hours.. Openings in the exterior walls facing the reduced width shall have opening protectives with a fire protection rating of not less than hours Group - buildings of Type II construction. The area of a Group - building no more than one story above grade plane, used as a place of religious worship, community hall, dance hall, exhibition hall, gymnasium, lecture hall, indoor swimming pool or tennis court of Type II construction, shall not be limited provided all of the following criteria are met:. The building shall not have a stage other than a platform.. The building shall be equipped throughout with an automatic sprinkler system in accordance with ection The building shall be surrounded and adjoined by public ways or yards not less than 60 feet (8 88 mm) in width Group - buildings of Types III and IV construction. The area of a Group - building of Type III or IV construction, with no more than one story above grade plane, and used as a place of religious worship, community hall, dance hall, exhibition hall, gymnasium, lecture hall, indoor swimming pool or tennis court, shall not be limited provided all of the following criteria are met:. The building shall not have a stage other than a platform.. The building shall be equipped throughout with an automatic sprinkler system in accordance with ection The assembly floor shall be located at or within inches ( mm) of street or grade level and all exits are provided with ramps complying with ection 00. to the street or grade level. 0 CLIFORNI BUILDING CODE 8

10 GENERL BUILDING HEIGHT ND RE. The building shall be surrounded and adjoined by public ways or yards not less than 60 feet (8 88 mm) in width Group H occupancies. Group H-, H- and H- occupancies shall be permitted in unlimited area buildings containing Group F and occupancies in accordance with ections 07. and 07. and the provisions of ections through llowable area. The aggregate floor area of Group H occupancies located in an unlimited area building shall not exceed 0 percent of the area of the building nor the area limitations for the Group H occupancies as specified in Table 0 as modified by ection 06. based upon the perimeter of each Group H floor area that fronts on a public way or open space Located within the building. The aggregate floor area of Group H occupancies not located at the perimeter of the building shall not exceed percent of the area limitations for the Group H occupancies as specified in Table Liquid use, dispensing and mixing rooms. Liquid use, dispensing and mixing rooms having a floor area of not more than 00 square feet (6. m ) need not be located on the outer perimeter of the building where they are in accordance with the California Fire Code and NFP Liquid storage rooms. Liquid storage rooms having a floor area of not more than,000 square feet (9 m ) need not be located on the outer perimeter where they are in accordance with the California Fire Code and NFP pray paint booths. pray paint booths that comply with the California Fire Code need not be located on the outer perimeter Located on building perimeter. Except as provided for in ection , Group H occupancies shall be located on the perimeter of the building. In Group H- and H- occupancies, not less than percent of the perimeter of such occupancies shall be an exterior wall Occupancy separations. Group H occupancies shall be separated from the remainder of the unlimited area building and from each other in accordance with Table Height limitations. For two-story unlimited area buildings, Group H occupancies shall not be located more than one story above grade plane unless permitted based on the allowable height in stories and feet as set forth in Table 0 for the type of construction of the unlimited area building ircraft paint hangar. The area of a Group H- aircraft paint hangar no more than one story above grade plane shall not be limited where such aircraft paint hangar complies with the provisions of ection.6 and is surrounded and adjoined by public ways or yards not less in width than one and one-half times the building height Group E buildings. The area of a Group E building no more than one story above grade plane, of Type II, III or IV construction, shall not be limited provided all of the following criteria are met:. Each classroom shall have not less than two means of egress, with one of the means of egress being a direct exit to the outside of the building complying with ection 00.. The building is equipped throughout with an automatic sprinkler system in accordance with ection The building is surrounded and adjoined by public ways or yards not less than 60 feet (8 88 mm) in width. 07. Motion picture theaters. In buildings of Type II construction, the area of a motion picture theater located on the first story above grade plane shall not be limited provided the building is provided with an automatic sprinkler system throughout in accordance with ection and is surrounded and adjoined by public ways or yards not less than 60 feet (8 88 mm) in width. 07. Covered and open mall buildings and anchor buildings. The area of covered and open mall buildings and anchor buildings not exceeding three stories in height that comply with ection 0 shall not be limited. ECTION 08 MIXED UE ND OCCUPNCY 08. General. Each portion of a building shall be individually classified in accordance with ection 0.. Where a building contains more than one occupancy group, the building or portion thereof shall comply with the applicable provisions of ection 08., 08. or 08., or a combination of these sections. Exceptions:. Occupancies separated in accordance with ection 0.. Where required by Table.., areas of Group H-, H- and H- occupancies shall be located in a detached building or structure.. Uses within live/work units, complying with ection 9, are not considered separate occupancies. 08. ccessory occupancies. ccessory occupancies are those occupancies that are ancillary to the main occupancy of the building or portion thereof. ccessory occupancies shall comply with the provisions of ections 08.. through rea limitations. ggregate accessory occupancies shall not occupy more than 0 percent of the building area of the story in which they are located and shall not exceed the tabular values in Table 0, without building area increases in accordance with ection 06 for such accessory occupancies Occupancy classification. ccessory occupancies shall be individually classified in accordance with ection 0.. The requirements of this code shall apply to 86 0 CLIFORNI BUILDING CODE

11 GENERL BUILDING HEIGHT ND RE each portion of the building based on the occupancy classification of that space llowable building area and height. The allowable building area and height of the building shall be based on the allowable building area and height for the main occupancy in accordance with ection 0.. The height of each accessory occupancy shall not exceed the tabular values in Table 0, without increases in accordance with ection 0 for such accessory occupancies. The building area of the accessory occupancies shall be in accordance with ection eparation of occupancies. No separation is required between accessory occupancies and the main occupancy. Exceptions:. Group H-, H-, H-, H-, I-, I-., I- and L occupancies shall be separated from all other occupancies in accordance with ection Group I-, R-, R-, R-. and R- dwelling units and sleeping units shall be separated from other dwelling or sleeping units and from accessory occupancies contiguous to them in accordance with the requirements of ection Nonseparated occupancies. Buildings or portions of buildings that comply with the provisions of this section shall be considered as nonseparated occupancies Occupancy Classification. Nonseparated occupancies shall be individually classified in accordance with ection 0.. The requirements of this code shall apply to each portion of the building based on the occupancy classification of that space. In addition, the most restrictive provisions of Chapter 9 which apply to the nonseparated occupancies shall apply to the total nonseparated occupancy area. Where nonseparated occupancies occur in a high-rise building, the most restrictive requirements of ection 0 which apply to the nonseparated occupancies shall apply throughout the high-rise building llowable building area and height. The allowable building area and height of the building or portion thereof shall be based on the most restrictive allowances for the occupancy groups under consideration for the type of construction of the building in accordance with ection eparation. No separation is required between nonseparated occupancies. Exceptions:. Group H-, H-, H-, H-, I-, I-., I- and L occupancies shall be separated from all other occupancies in accordance with ection Group R-, R-, R-. and R- dwelling units and sleeping units shall be separated from other dwelling or sleeping units and from other occupancies contiguous to them in accordance with the requirements of ection eparated occupancies. Buildings or portions of buildings that comply with the provisions of this section shall be considered as separated occupancies Occupancy classification. eparated occupancies shall be individually classified in accordance with ection 0.. Each separated space shall comply with this code based on the occupancy classification of that portion of the building llowable building area. In each story, the building area shall be such that the sum of the ratios of the actual building area of each separated occupancy divided by the allowable building area of each separated occupancy shall not exceed llowable height. Each separated occupancy shall comply with the building height limitations based on the type of construction of the building in accordance with ection 0.. Exception: pecial provisions permitted by ection 0 shall permit occupancies at building heights other than provided in ection eparation. Individual occupancies shall be separated from adjacent occupancies in accordance with Table Construction. Required separations shall be fire barriers constructed in accordance with ection 707 or horizontal assemblies constructed in accordance with ection 7, or both, so as to completely separate adjacent occupancies. ECTION 09 INCIDENTL UE 09. General. Incidental uses located within single occupancy or mixed occupancy buildings shall comply with the provisions of this section. Incidental uses are ancillary functions associated with a given occupancy that generally pose a greater level of risk to that occupancy and are limited to those uses listed in Table 09. Exception: Incidental uses within and serving a dwelling unit are not required to comply with this section. 09. Occupancy classification. Incidental uses shall not be individually classified in accordance with ection 0.. Incidental uses shall be included in the building occupancies within which they are located. 09. rea limitations. Incidental uses shall not occupy more than 0 percent of the building area of the story in which they are located. 09. eparation and protection. The incidental uses listed in Table 09 shall be separated from the remainder of the building or equipped with an automatic sprinkler system, or both, in accordance with the provisions of that table. 0 CLIFORNI BUILDING CODE 87

12 GENERL BUILDING HEIGHT ND RE TBLE 08. REQUIRED EPRTION OF OCCUPNCIE (HOUR) OCCUPNCY, E I-, R-. I-, I-. I- R-, R-, R-, R-., R- F-, - b, U B, F-, M e, - L H- H- H-, H- H- N N N N N N N N N N N N, E N N N a I-, R-. e I-, I-. N I- N R-, R-, R-, R-., R- N N c c F-, - b, U N N N N a B, F-, M, - N N a L H- N H- N H-, H- d H- N = Buildings equipped throughout with an automatic sprinkler system installed in accordance with ection N = Buildings not equipped throughout with an automatic sprinkler system installed in accordance with ection N = No separation requirement. = Not permitted. a ee ection 0. b. The required separation from areas used only for private or pleasure vehicles shall be reduced by hour but to not less than hour. c. ee ection d. eparation is not required between occupancies of the same classification. e. [FM] Group I and F occupancies and Group R-. and F- occupancies shall have a hour separation eparation. Where Table 09 specifies a fireresistance-rated separation, the incidental uses shall be separated from the remainder of the building by a fire barrier constructed in accordance with ection 707 or a horizontal assembly constructed in accordance with ection 7, or both. Construction supporting -hour fire barriers or horizontal assemblies used for incidental use separations in buildings of Type IIB, IIIB and VB construction is not required to be fire-resistance rated unless required by other sections of this code Protection. Where Table 09 permits an automatic sprinkler system without a fire barrier, the incidental uses shall be separated from the remainder of the building by construction capable of resisting the passage of smoke. The walls shall extend from the top of the foundation or floor assembly below to the underside of the ceiling that is a component of a fire-resistance-rated floor assembly or roof assembly above or to the underside of the floor or roof sheathing, deck or slab above. Doors shall be self- or automatic-closing upon detection of smoke in accordance with ection Doors shall not have air transfer openings and shall not be undercut in excess of the clearance permitted in accordance with NFP 80. Walls surrounding the incidental use shall not have air transfer openings unless provided with smoke dampers in accordance with ection Protection limitation. Except as specified in Table 09 for certain incidental uses, where an automatic sprinkler system is provided in accordance with Table 09, only the space occupied by the incidental use need be equipped with such a system. ECTION 0 PECIL PROVIION 0. General. The provisions in ections 0. through 0.9 shall permit the use of special conditions that are exempt from, or modify, the specific requirements of this chapter regarding the allowable building heights and areas of buildings based on the occupancy classification and type of construction, provided the special condition complies with the provisions specified in this section for such condition and other applicable requirements of this code. The provisions of ections 0. through 0.8 are to be considered independent and separate from each other. 0. Horizontal building separation allowance. building shall be considered as separate and distinct buildings for the purpose of determining area limitations, continuity of fire 88 0 CLIFORNI BUILDING CODE

13 GENERL BUILDING HEIGHT ND RE ROOM OR RE Furnace room where any piece of equipment is over 00,000 Btu per hour input Rooms with boilers where the largest piece of equipment is over psi and 0 horsepower Refrigerant machinery room Hydrogen cutoff rooms, not classified as Group H Incinerator rooms TBLE 09 INCIDENTL UE Paint shops, not classified as Group H, located in occupancies other than Group F Laboratories and vocational shops, not classified as Group H, located in Group I- and I-. occupancies [FM] Rooms or areas with special hazards such as laboratories, vocational shops and other such areas not classified as Group H, located in Group E occupancies where hazardous materials in quantities not exceeding the maximum allowable quantity are used or stored. Laundry rooms over 00 square feet Waste and linen collection rooms located in either Group I- occupancies or ambulatory care facilities Waste and linen collection rooms over 00 square feet tationary storage battery systems having a liquid electrolyte capacity of more than 0 gallons for flooded lead-acid, nickel cadmium or VRL, or more than,000 pounds for lithium-ion and lithium metal polymer used for facility standby power, emergency power or uninterruptable power supplies EPRTION ND/OR PROTECTION hour or provide automatic sprinkler system a hour or provide automatic sprinkler system a hour or provide automatic sprinkler system a hour in Group B, F, M, and U occupancies; hours in Group, E, I and R occupancies. hours and provide automatic sprinkler system hours; or hour and provide automatic sprinkler system hour or provide automatic fire-extinguishing system a hour hour or provide automatic sprinkler system a hour hour or provide automatic sprinkler system a hour in Group B, F, M, and U occupancies; hours in Group, E, I and R occupancies a > For I: square foot = m, pound per square inch (psi) = 6.9 kpa, British thermal unit (Btu) per hour = 0.9 watts, horsepower = 76 watts, gallon =.78 L. a. [FM] Fire barrier protection and automatic sprinkler protection required throughout the fire area in I- and I-. occupancies as indicated. walls, limitation of number of stories and type of construction where all of the following conditions are met:. The buildings are separated with a horizontal assembly having a fire-resistance rating of not less than hours.. The building below the horizontal assembly is not greater than one story above grade plane.. The building below the horizontal assembly is of Type I construction.. haft, stairway, ramp and escalator enclosures through the horizontal assembly shall have not less than a - hour fire-resistance rating with opening protectives in accordance with ection 76.. Exception: Where the enclosure walls below the horizontal assembly have not less than a -hour fireresistance rating with opening protectives in accordance with ection 76., the enclosure walls extending above the horizontal assembly shall be permitted to have a -hour fire-resistance rating, provided:. The building above the horizontal assembly is not required to be of Type I construction;. The enclosure connects fewer than four stories; and. The enclosure opening protectives above the horizontal assembly have a fire protection rating of not less than hour.. The building or buildings above the horizontal assembly shall be permitted to have multiple Group occupancy uses, each with an occupant load of less 00, or Group B, M, R or occupancies. 6. The building below the horizontal assembly shall be protected throughout by an approved automatic sprinkler system in accordance with ection 90..., and shall be permitted to be any of the following occupancies: 6.. Group - parking garage used for the parking and storage of private motor vehicles; 6.. Multiple Group, each with an occupant load of less than 00; 0 CLIFORNI BUILDING CODE JNURY, 0 ERRT 89 BUFF

14 GENERL BUILDING HEIGHT ND RE 6.. Group B; 6.. Group M; 6.. Group R; and 6.6. Uses incidental to the operation of the building (including entry lobbies, mechanical rooms, storage areas and similar uses). 7. The maximum building height in feet (mm) shall not exceed the limits set forth in ection 0 for the building having the smaller allowable height as measured from the grade plane. 0. Group - enclosed parking garage with Group - open parking garage above. Group - enclosed parking garage with not more than one story above grade plane and located below a Group - open parking garage shall be classified as a separate and distinct building for the purpose of determining the type of construction where all of the following conditions are met:. The allowable area of the building shall be such that the sum of the ratios of the actual area divided by the allowable area for each separate occupancy shall not exceed.. The Group - enclosed parking garage is of Type I or II construction and is at least equal to the fire-resistance requirements of the Group - open parking garage.. The height and the number of tiers of the Group - open parking garage shall be limited as specified in Table The floor assembly separating the Group - enclosed parking garage and Group - open parking garage shall be protected as required for the floor assembly of the Group - enclosed parking garage. Openings between the Group - enclosed parking garage and Group - open parking garage, except exit openings, shall not be required to be protected.. The Group - enclosed parking garage is used exclusively for the parking or storage of private motor vehicles, but shall be permitted to contain an office, waiting room and toilet room having a total area of not more than,000 square feet (9 m), and mechanical equipment rooms incidental to the operation of the building. 0. Parking beneath Group R. Where a maximum one story above grade plane Group - parking garage, enclosed or open, or combination thereof, of Type I construction or open of Type IV construction, with grade entrance, is provided under a building of Group R, the number of stories to be used in determining the minimum type of construction shall be measured from the floor above such a parking area. The floor assembly between the parking garage and the Group R above shall comply with the type of construction required for the parking garage and shall also provide a fireresistance rating not less than the mixed occupancy separation required in ection Group R- and R- buildings of Type III construction. The height limitation for buildings of Type III construction in Groups R- and R- shall be increased to six stories and 7 feet ( 860 mm) where the first floor assembly above the basement has a fire-resistance rating of not less than hours and the floor area is subdivided by -hour fireresistance-rated fire walls into areas of not more than,000 square feet (79 m ). 0.6 Group R- and R- buildings of Type II construction. The height limitation for buildings of Type II construction in Groups R- and R- shall be increased to nine stories and 00 feet (0 80 mm) where the building is separated by not less than 0 feet ( 0 mm) from any other building on the lot and from lot lines, the exits are segregated in an area enclosed by a -hour fire-resistance-rated fire wall and the first floor assembly has a fire-resistance rating of not less than / hours. 0.7 Open parking garage beneath Groups, I, B, M and R. Open parking garages constructed under Groups, I, B, M and R shall not exceed the height and area limitations permitted under ection 06.. The height and area of the portion of the building above the open parking garage shall not exceed the limitations in ection 0 for the upper occupancy. The height, in both feet and stories, of the portion of the building above the open parking garage shall be measured from grade plane and shall include both the open parking garage and the portion of the building above the parking garage Fire separation. Fire barriers constructed in accordance with ection 707 or horizontal assemblies constructed in accordance with ection 7 between the parking occupancy and the upper occupancy shall correspond to the required fire-resistance rating prescribed in Table 08. for the uses involved. The type of construction shall apply to each occupancy individually, except that structural members, including main bracing within the open parking structure, which is necessary to support the upper occupancy, shall be protected with the more restrictive fire-resistance-rated assemblies of the groups involved as shown in Table 60. Means of egress for the upper occupancy shall conform to Chapter 0 and shall be separated from the parking occupancy by fire barriers having not less than a -hour fire-resistance rating as required by ection 707 with self-closing doors complying with ection 76 or horizontal assemblies having not less than a -hour fire-resistance rating as required by ection 7, with selfclosing doors complying with ection 76. Means of egress from the open parking garage shall comply with ection Group B or M with Group - open parking garage. Group B or M occupancies located not higher than the first story above grade plane shall be considered as a separate and distinct building for the purpose of determining the type of construction where all of the following conditions are met:. The buildings are separated with a horizontal assembly having a fire-resistance rating of not less than hours.. The occupancies in the building below the horizontal assembly are limited to Groups B and M.. The occupancy above the horizontal assembly is limited to a Group - open parking garage. 90 JNURY, 0 ERRT 0 CLIFORNI BUILDING CODE BUFF