I’m not aware of any metro area that’s building affordable high rise housing. The cost of construction goes up exponentially as you increase a building’s height

I’m not aware of any metro area that’s building affordable high rise housing. The cost of construction goes up exponentially as you increase a building’s height. Even if SF had no restrictions on height I doubt most construction would be over 10 stories due to fire/building codes getting much more restrictive. So you’re left with a developer paying ~$3M to acquire a duplex that they can then build a max of 10 units on. Just the cost of the land is going to require $300K from each unit sold. Add in the construction costs, and a modest profit and you’re back up to 1M+ unit cost. 1M condo is still not affordable for working class residents.