Tokyo seems to have solved this by building houses and transportation right? What's preventing other governments from duplicating this? Politics? If so what was unique about Tokyo?
* transportation: the outlays of programs like Five Commuting directions in Tokyo was a direct contributor to the collapse of JNR, which led to the government assuming all JNR debt and privatizing the railways as JR Group
* housing production in Tokyo is great, but to put this in context today's Japanese housing market essentially happened after the bubble pop in the '90s. Prices from 1991 to 2004 had declined by 64% due to the pop. In that context, deregulation was palatable because people were already underwater and didn't bother as much to fight things that would lower property values. (In fact, it could've raised them.)
Japan (including Tokyo) legalized short-term rentals (minpaku) in 2018. However, there are reasonably toothy licensing requirements and you're capped at 180 days per year.