This is good, but if we address this at a systemic level, we don't need to put people in tiny low-density homes unconnected to anything for it to be affordable.
Presumably local governments have some mechanism for when they know a house costs X materials and Y labor, and they see new construction costing significantly more than that.
The result is detached homes@avg 75USD/sqft and apartments@55/sqft. With current interest rates of 6.768%, you'd get ~400 sqft homes with a $200/mo 30 year mortgage at those prices, 600sqft if interest rates were 3%.