Seattle Green Factor is a score-based code requirement that increases the amount of and improves the quality of landscaping in new development. Landscaping plays an important role in how new development looks and functions. Well-designed landscaping:
If your project is required to meet the Seattle Green Factor, you must reach a minimum score established by the zoning of your property. You can choose from a “menu” of landscape credits for various features, including green roofs, rain gardens, vegetated walls, and trees, and shrubs. You can receive bonus credits if you plant along the sidewalk, use native plants, or create a food garden.
For case studies of how the Seattle Green Factor can be applied to a project, see our Seattle Green Factor archive page.
Green Factor does not cover regulations for single-family zones and some industrial and downtown zones.
The standards of Seattle Green Factor are established in Seattle Municipal Code (SMC) 23.86.019. Detailed requirements for affected zones are as follows:
None at this time.