Initiatives for Oregon

Locality	Initiative Type	Mitigation Strategy	Link	Title & Description	Date
Portland	Comprehensive Plan and Design Guidelines	Green Roofs	Section C Project Design (PDF)	Central City Fundamental Design Guidelines - The City of Portland, Oregon has focused on the use of green roofs in the city center district, primarily for their aesthetic and stormwater management benefits. Design guidelines call for integrating vegetated roofs into central city projects.	Active
Portland	Zoning Code; Building Code	Green Roofs	Chapter 33.510 (PDF)	Central City Plan District Zoning Code - In 2001, Portland, Oregon modified its zoning code to include an "eco-roof development bonus" for developers to install green roofs (which are called "eco-roofs" in the code). In Title 33 of the Zoning Code there is a floor area ratio bonus for projects that install green roofs in Portland's central district. The bonus amount depends on the extent of the green roof coverage. If the green roof covers 60% or more of the roof surface, developers can build an additional 3 square feet (0.3 m²) for each square foot of green roof. If the green roof covers a lower percent of the surface, the bonus is reduced.	Active