If it's anything like what's happening in Chicago, what happens is a mix of existing multi-unit buildings being torn down and replaced with single-family homes

If it's anything like what's happening in Chicago, what happens is a mix of existing multi-unit buildings being torn down and replaced with single-family homes or 2-3 unit luxury condos, and whole swaths of existing 2- and 3-flat buildings comprising maybe 15 or 20 affordable units being torn down to make room for apartment/condo developments with 20 luxury apartments, but only two of them designated as affordable housing.