Very hard to build, very hard to evict (you can be a horrible tenant for years and not get kicked out), very strict price controls (they carry over to the next

Very hard to build, very hard to evict (you can be a horrible tenant for years and not get kicked out), very strict price controls (they carry over to the next renter), and lo and behold people decide being a landlord isn't worth the trouble. Property tax is low too so keeping places empty isn't as unappealing as elsewhere.