That may contribute to affordability but if supply was constrained to stop it reaching demand prices would have risen, tiny apartments or no. See San Francisco

That may contribute to affordability but if supply was constrained to stop it reaching demand prices would have risen, tiny apartments or no. See San Francisco where glorified closets are a lot more expensive than in Tokyo. Prices haven’t risen in Tokyo because supply has risen. They have in many, many cities all over the Anglosphere. That’s a policy choice. Not a law of nature.