Any Seattle residential architects know what happened with the Green Roof incentives that Seattle used to offer?

I attended some city sponsored workshops for living green roofs about 10 years ago, and I recall there was some allowed increases in your house height limit for a green living roof -- but I'm searching the DPD website and can't find anything authoritative. I see the that 30' is the standard height limit, and you can have an additional 5' above that for a pitched roof, but I'm not finding anything about a flat green roof.Anybody dealt with this recently? via /r/SeattleWA http://ift.tt/2ddobbH