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Landsaping and Green Factor Compliance.pdfLANDSCAPE ARCHITECTURE , SITE PLANNING • URBAN DESIGN 02 July 2019 Kernen Lien City of Edmonds Edmonds, Washington 98026 Re: Westgate Village - Kernen, The Westgate Village project requires as part of our permitting to provide confirmation of construction/installation of materials that were specified as part of our permitting. Utilizing the Green factor Score sheet to provide supporting information regarding achieving the 0.4 points as part of the bonus height calculations. I am writing to confirm the installation of the landscape, including trees, shrubs, groundcover, pervious surfaces, vertical trellis, & bio-retention were installed per our drawings with respect to the green factor. I am including a sheet illustrating our percentages for both amenity areas, which include the breakdown for the impervious, pervious, and planting areas. I am also including the green factor score sheet for reference. Let me know if there is anything further, I can provide to illustrate Westgate Village landscape was installed per plan. Sincerely Forrest Jammer THOMAS RENGSTORF & ASSOCIATES THOMAS RENGSTORFASSOCIATES.COM 206.682.7562 - 811 First Avenue, Suite 615, Seattle, WA 98104 PLANTING 331 �T WESTGATE VILLAGE -AMENITY AREA #2 50 710 PERVIOUS 150 PLAI!N(,� NL 4 PERI o \ PERVIOUS CALCULATIONS: AMENITY 2: 7930 sf PE IMPERVIOUS — 1,802 SF 317 PE�VIOUS — 2,803 SF (35.3%) PLANTING — 3,325 SF (41.9%) 1742 PERVIOUS 3J 417 PERVIOUS `1 996 PLANING Is. � a .36 . � i1PERV�Ol16 . 'WESTGATE VILLAGE - AMENITY AREA #2--7 V \ \ 1300 SD PERVIOUS / So 0 v\ \ 197 PLANING neviseo c.,o, l,a Green Factor Score Sheet S EATT LE Xgreen factor Project title: Westgate Edmonds enter sq ft of parcel Parcel size (enter this value first) * 56,047 SCORE 0.408 Landscape Elements— Totals from GF worksheet Factor Total A Landscaped areas (select one of the following for each area) enter sq ft 1 Landscaped areas with a soil depth of less than 24" 1294 0.1 129 enter sq ft 2 Landscaped areas with a soil depth of 24" or greater 4309 0.6 2,585.4 enter sq ft 3 Bioretention facilities 650 1.0 650.0 B Plantings (credit for plants in landscaped areas from Section A) enter sq ft 1 Mulch, ground covers, or other plants less than 2' tall at maturity 1437 0.1 144 enter number of plants 2 Shrubs or perennials 2'+ at maturity - calculated 838 10056 0.3 3,017 at 12 sq ft per plant (typically planted no closer than 18" on center) enter number of plants 3 Tree canopy for "small trees" or equivalent 16 1200 0.3 360 (canopy spread 8' to 15') - calculated at 75 sq ft per tree enter number of plants 4 Tree canopy for "small/medium trees" or equivalent 0 1350 0.3 405.0 (canopy spread 16' to 20') - calculated at 150 sq ft per tree enter number of plants 5 Tree canopy for "medium/large trees" or equivalent 0 500 0.4 200.0 (canopy spread of 21' to 25') - calculated at 250 sq ft per tree enter number of plants 6 Tree canopy for "large trees" or equivalent © 2100 0.4 840.0 (canopy spread of 26' to 30') - calculated at 350 sq ft per tree enter inches DBH 7 Tree canopy for preservation of large existing trees 700 14000 0.8 11,200.0 with trunks 6"+ in diameter - calculated at 20 sq ft per inch diameter C Green roofs enter sq ft 1 Over at least 2" and less than 4" of growth medium 0 0.4 enter sq ft 2 Over at least 4" of growth medium 0 0.7 - enter sq ft D Vegetated walls 160 0.7 112.0 enter sq ft E Approved water features 0 0.7 - F Permeable paving enter sq ft 1 Permeable paving over at least 6" and less than 24" of soil or gravel 11286 0.2 2,257.2 enter sq ft 2 Permeable paving over at least 24" of soil or gravel 0 0.5 - enter sq ft G Structural soil systems 0 0.2 sub -total of sq ft = 48,342 H Bonuses enter sq ft 1 Drought -tolerant or native plant species 5603 0.1 560.3 enter sq ft 2 Landscaped areas where at least 50% of annual irrigation needs are met 0 0.2 - through the use of harvested rainwater enter sq ft 3 Landscaping visible to passersby from adjacent 4,006 0.1 401 public right of way or public open spaces enter sq ft 4 Landscaping in food cultivation 0 0.1 - Green Factor numerator= 22,860 Do not count public rights -of -way in parcel size calculation. You may count landscape improvements in rights -of -way contiguous with the parcel. All landscaping on private and public roperty must comply with the Landscape Standards Director's Rule (DR 6-2009)