Planning Commission November 2, 2011 URBAN FORESTRY TITLE 13 STAFF RECOMMENDATIONS

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1 Planning Commission November 2, 2011 URBAN FORESTRY TITLE 13 1

2 GOALS FOR TITLE 13 MODIFICATIONS Grow canopy cover Integrate existing intent and framework with modifications Increase flexibility for differing land uses to accommodate density Capture tree quality as well as quantity Protect intended tree canopy 2

3 GOALS FOR TITLE 13 MODIFICATIONS Credits including mature tree retention Organization Other modifications (not tree related) Urban Forestry Program Overview 9/7/11 10/5/11 Today 12/7/11 1/4/11 Policy Summary & Current Practices Staff Rec. Landscaping Draft Language 3

4 GROW CANOPY COVER From 19 to 30% Start thinking in terms of canopy cover city-wide Modify our landscaping regulations to canopy cover requirements by site/land use Add credits for canopy cover enhancers (more on that shortly) More weight to retention of qualifying existing trees 4

5 Land Use Category LAND USE GOALS Existing Canopy Cover (%) Recommended Canopy Cover Goal (%) Commercial/Mixed Use (CM) 3.7% 15% Downtown (DN) 3.1% 15% Developed Park (DP) 28.7% 35% Major Institution (MA) 6.8% 25% Multi-Family (MF) 19.0% 25% Manufacturing/Industrial (MI) 3.7% 10% Parks Natural Area (PN) 74.6% 80% Single Family (SF) 23.0% 30% ROW/Non-Parceled Areas 9.2% 30% Total 19% 30% 5

6 ANALYSIS OF EXISTING SITES ROW 17% N Union Ave block 59% S 84 th St S 84 th St. 800 block S Yakima Ave block 46% Recommended Canopy Cover Goal ROW/Non-Parceled Areas 30% 6

7 ANALYSIS OF EXISTING SITES Major Institution Developed Park Wright Park 49% DP 26 % ROW Park Ave. Elementary 5.8% MA 6.1% ROW Recommended Canopy Cover Goal ROW/Non-Parceled Areas 30% Major Institution (MA) 25% Developed Park (DP) 35% 7

8 ANALYSIS OF EXISTING/PROPOSED SITES Single Family Residence N Verde St block Typical 6,000 ft 2 SFR Corner Lot 39% SF 50% ROW 30% SF 16% ROW 30% SF 37 % ROW Recommended Canopy Cover Goal ROW/Non-Parceled Areas 30% Single Family (SF) 30% 8

9 ANALYSIS OF PROPOSED LANDSCAPES Commercial Industrial 25% ROW 10% CM 20% ROW 5% MI 19% ROW 39% CM Recommended Canopy Cover Goal ROW/Non-Parceled Areas 30% Commercial/Mixed Use (CM) 15% Manufacturing/Industrial (MI) 10% 9

10 Land Use Category LAND USE GOALS Existing Canopy Cover (%) Recommended Canopy Cover Goal (%) Commercial/Mixed Use (CM) 3.7% 15% Downtown (DN) 3.1% 15% Developed Park (DP) 28.7% 35% Major Institution (MA) 6.8% 25% Multi-Family (MF) 19.0% 25% Manufacturing/Industrial (MI) 3.7% 10% Parks Natural Area (PN) 74.6% 80% Single Family (SF) 23.0% 30% ROW/Non-Parceled Areas 9.2% 30% Total 19% 30% 10

11 FLEXIBILITY Require canopy cover percentage (at maturity) by site/land use Separate canopy cover for rights-of-way Require canopy cover percentage (at maturity) for all on-site parking lots In-lieu fees by canopy cover percentage Credits by canopy cover percentage 11

12 QUALITY AND QUANTITY Require canopy cover percentage (at maturity) by site/land use Credits for evergreens List of tree species in the Urban Forest Manual addressing quality in the following terms: Diversity (type and genera) Pest susceptibility Invasiveness Climate adaptability Minimum soil volume requirement by mature tree size 12

13 PROTECT INTENDED CANOPY Require irrigation (3 options) Landscape Management Plans Clarify language and enforcement practices on replacement of dead or damaged trees (including pruning mistakes) Urban Forest Manual establishing standards to be referenced by code for planting and growing trees 13

14 CREDITS Retention of existing tree canopy X% site canopy cover = Y% for qualifying retained canopy Green Roof X sq ft of green roof = Y sq ft of tree canopy Increased soil volume for right-of-way/parking lot trees % site canopy cover per right-of-way/parking lot tree Planting evergreen (where appropriate) X% site canopy cover per evergreen tree planted Use of permeable pavement around trees X sq ft of permeable pavement = Y sq ft of tree canopy Stormwater credits (not Title 13) 14

15 URBAN FOREST MANUAL (UFM) Design Standards for Placement Sample Tree Protection Plan Design Standards for Clearance Landscaping standards and examples in the UFM create a user-friendly and less resource intensive design / review process 15

16 ORGANIZATION Standards in current Title 13 moved (adapted as necessary) to the UFM UFM adopted by reference in Title 13 Worksheets for site canopy cover Tree planting and care standards universal for all development Landscape types (perimeter strip, screening, etc.) located and described in UFM but required by zoning per Title 13 16

17 OTHER MODIFICATIONS Technical Platting Triggers/thresholds Exemptions Urban Forestry Program Overview 9/7/11 10/5/11 Today 12/7/11 1/4/11 Policy Summary & Current Practices Staff Rec. Landscaping Draft Language 17