As @MadelineKovacs often says, housing policy IS climate policy. Here's how much it is:
On one, three old homes are torn down and replaced by three 3,400-square-foot homes. This is perfectly legal just about everywhere! Let's call this the McMansion Block.
Let's call this the Plex Block.
This sliding scale of building size is a Portland idea. sightline.org/2018/12/07/por…
On Plex Block, it's more like $2.1 million on construction, but the block just added six more, smaller homes.
Now let's look at the climate impact.
Without changing ANY OTHER BEHAVIORS AT ALL, we cut carbon emissions per household on this block by 20%.
All it took was letting 9 households live where they want.
The short answer is that keeping a bunch of big, usually-empty rooms warm in the winter and cool in the summer burns a truly massive amount of carbon.
Well, I have friends who think so! But my point here is that we could get MASSIVE climate benefits just by letting folks live in smaller homes if they want to.
The price of urban land. You may want a tiny house but the land price is based on the McMansion you don't want.
Answer: let little homes team up.)
Oregon is ON THE VERGE of becoming the first US state to make this sort of block legal in larger urban areas statewide.
Doing this is good. It won't solve anywhere close to everything. But this is one of the ones we want to be able to tell the kids about someday.
Sorry about that.