Project Description. Projected build start date 31 Jan 2009 Projected date of occupation 31 Aug

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Dorthy Andrews
5 years ago
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the 80's and had permission to make further adaptations. The mixture of building standards meant that their home was extremely drafty and very energy inefficient.

the client knew from an early stage that they would be using there trusted friend Antoine Costantini of Kithurst Builders for the main contractor on the project.

1 Project name The Curly House Project summary Initial project meetings first started in January of 2008, the clients owned a small cottage on the site which had been extended several times during the 80's and had permission to make further adaptations. The mixture of building standards meant that their home was extremely drafty and very energy inefficient. The site itself is particularly exposed.the client knew from an early stage that they would be using there trusted friend Antoine Costantini of Kithurst Builders for the main contractor on the project. Ecotecture ltd were appointed along side Peter Rainier of DMH Stallard as the planning consultants.planning was achieved on the site despite its being in an AONB and an area of development restriction. The design which achieved planning permission was a crescent form which steps and slides into the slopes on the site. The crescent formation is in direct response to solar orientation. Project Description Projected build start date 31 Jan 2009 Projected date of occupation 31 Aug 2011 Project stage Under construction Project location Chichester, West Sussex, England Energy target Passivhaus Build type New build Page 1

2 Building sector Private Residential Property type Detached Existing external wall construction Existing external wall additional information Existing party wall construction Floor area m² Floor area calculation method PHPP Project team Organisation Project lead Client Architect Mechanical & electrical consultant(s) Energy consultant(s) Structural engineer Quantity surveyor Other consultant Contractor Ecotecture Ltd Kithurst Builders Not given Ecotecture Ltd Kithurst Builders John Packer Associates BLB Structural Engineers Kithurst Builders - Design proportion allocated in contract documentation Kithurst Builders Design strategies Planned occupancy Space heating strategy Water heating strategy Fuel strategy Renewable energy generation strategy Passive solar strategy Space cooling strategy Daylighting strategy The brief was to design a building which would accommodate the family for many years into the future, the planned occupancy would be for 5 adults. Additionally, the home will be used for large family occasions. A requirement was set for a minimum 16 seated spaces to be available for dining during these family occasions. The space heating strategy is that of Passivhaus, the primary energy supply from space heating will be from internal heat gains.thermal modelling shows the property achieve a lower than Passivhaus demand per m2 of space heating. Two evacuated tube solar thermal panels are backed up by a small LPG boiler. Page 2

3 Ventilation strategy Airtightness strategy Strategy for minimising thermal bridges Modelling strategy Insulation strategy Other relevant retrofit strategies Other information (constraints or opportunities influencing project design or outcomes) The ventilation system is a Paul MVHR system designed and supplied by Green Building Store. Initial tests show the project achieving 0.3m3/m2/hr at 50 pascals. The use of the Nudura ICF in combination with the OpDeck floor system provides excellent base level air tightness, with extremely low movement within the structure itself.the contractor has sourced and installed OptiWin Passivhaus certified windows which are also a key ingredient to the air tightness approach. Energy use Fuel use by type (kwh/yr) Fuel previous forecast measured Electri c Gas Oil LPG Wood Primary energy requirement & CO2 emissions Annual CO2 emissions (kg CO2/m².yr) Primary energy requirement (kwh/m².yr) previous forecast measured Renewable energy (kwh/yr) Renewables technology forecast measured - - Energy consumed by generation Airtightness ( 50 Pascals ) Date of test Pre-development airtightness - - Test result Page 3

4 Date of test Final airtightness - - Test result Annual space heat demand ( kwh/m².yr ) Space heat demand Pre-development forecast measured Whole house energy calculation method Other energy calculation method Predicted annual heating load - Other energy target(s) Building services Other IES thermal model developed by an independent consultant. Occupancy Space heating Hot water Ventilation Controls Cooking Lighting Appliances Renewables Strategy for minimising thermal bridges Building construction Storeys Volume Thermal fabric area Roof description Roof U-value Walls description Walls U-value Party walls description Party walls U-value Floor description Floor U-value Glazed doors description Glazed doors U-value Page 4

5 Opaque doors description Opaque doors U-value Windows description Windows U-value Windows energy transmittance (G-value) Windows light transmittance Rooflights description Rooflights light transmittance Rooflights U-value Page 5

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Project Description. Projected build start date 12 Apr 2010 Projected date of occupation 28 Feb

Project Description. Projected build start date 12 Apr 2010 Projected date of occupation 28 Feb http://lowenergybuildings.org.uk Project name PassivHaus Retrofit - Octavia Housing Project summary PassivHaus retrofit of a three storey solid brick Victorian terraced house in a conservation area. Produce