This article combines and adapts three articles by the Portland for Everyone coalition’s Michael Andersen. See the originals on this blog, and learn more about the group here. Portland’s approach shares similarities with the Seattle Housing Affordability and Livability Agenda recommendation to allow small duplexes and triplexes in single-family zones without letting property owners erect buildings larger than currently zoned.
Growing cities across the US and Canada are grappling with the challenges of displacement and affordability in their housing markets, and many of them are looking to Cascadia’s innovative cities for answers. Portland, the smallest of Cascadia’s three major metropolitan areas, has perhaps one of its biggest and best ideas: the “residential infill project.” …
When a city gets more desirable but isn’t allowed to add more places for people to sleep, this is what happens: the old homes don’t stay affordable. They just get priced up and up and up. …
The residential infill project that went before Portland City Council November 9 and will again November 16 is an opportunity to make this happen. It’s a chance for the city to strike an anti-McMansion compromise and shrink the maximum size of new homes (which would reduce demolitions) while also legalizing duplexes, triplexes, and backyard cottages (which would mean that the demolitions that do happen would result in more small homes instead of fewer, huge, expensive ones).
Instead of allowing new single-dwelling homes to look like this:
To be clear, nobody is talking about requiring new homes to look like this. The overwhelming majority of residential homes would still have lots of space and yards of their own. But by making it once again legal to build these small homes in residential areas, Portland would make this an option for people who want something in between an apartment building and a freestanding house, which means fewer people would be competing for apartments and for freestanding homes.
There’s another possibility here: the city might decide to shrink the size of new homes but not make small multiplexes legal.
If that were to happen, it wouldn’t stop developers and landlords from finding ways to make a profit. It would mean that the only way they could make a profit is by replacing poor folks with middle-income folks and middle-income folks with rich folks.