Does Portland offer ecoroof incentives?
Answered by AskBaily Editorial · Updated
Short answer
Yes. Portland's 2020 Stormwater Management Manual structurally advantages ecoroofs (green roofs) and bioswales for stormwater credit. New construction and substantial reroofing can claim stormwater credit that reduces the required on-site detention volume, which in turn reduces permit fees and site area lost to cistern or tank storage. BDS Stormwater Manager sign-off is required; most qualifying projects recover the design cost in credit.
In detail
Yes. Portland's 2020 Stormwater Management Manual structurally advantages ecoroofs (green roofs) and bioswales for stormwater credit. New construction and substantial reroofing can claim stormwater credit that reduces the required on-site detention volume, which in turn reduces permit fees and site area lost to cistern or tank storage. BDS Stormwater Manager sign-off is required; most qualifying projects recover the design cost in credit.
This answer is part of AskBaily's portland regulatory knowledge base. For deeper context — including current code-section references, agency contact details, and recent policy changes — see the [portland city hub](/portland) or [the /ask hub](/ask) for related questions.
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