It takes significantly less materials to build a multi-dwelling apartment/condo/townhouse structure than a single family home. In addition, the required square footage per person drops by huge amounts when people can walk to nearby community centers, restaurants, kitchens, theaters, and bars. We are building massive 3-4k sq. ft. homes for families of four because all of their food, entertainment, and social needs are…
I would argue more than that the housing crisis is an “urban crisis” and a “fraying of the social fabric” crisis. By the first I mean the continued destruction of smaller towns and semi-rural areas. Even if single family homes are more expensive to build than multi family apartments, the fact is we have ridiculous amounts of space in this country. But most people for various reasons don’t want to live where the space…
There are examples of small towns with good urbanism - a lot of college towns fit this bill - but they are so rare that they just replicate big-city level prices, without the high-productivity jobs to pay them.