In the US, at least, a majority of development is largely dedicated to SFH developments or multi family housing (ie, "duplexes"). We have a large emphasis on en

In the US, at least, a majority of development is largely dedicated to SFH developments or multi family housing (ie, "duplexes"). We have a large emphasis on encouraging urban sprawl rather than scaling vertically. Any remaining land that is not zoned for SFH is mostly sold to private developers where it only makes financial sense to develop luxury condos (especially in some hostile markets where the building code is constrained). Solving the affordability crisis in the US will require a multifaceted approach involving radical changes in existing land zoning and building code; decoupling our city planning from roads + cars to alternative modes of transportation such as walking, biking, or public transportation; and having the O&G and auto industries pay their share for getting us into this mess.