Housing is a political problem, not a technological one.
Housing is a political problem, not a technological one.
If you wish, you can buy a lovely, well-located mansion for $800,000 in Milwaukee right now: https://www.zillow.com/homes/for_sale/40453573_zpid/globalre...
Or one of the many empty houses for around $20,000: https://www.zillow.com/homes/for_sale/40456506_zpid/globalre...
Note that you will need to do substantial renovation, lead abatement, etc, and when you're done, the house will probably be worth around $50,000 at most, and not be in a safe neighborhood.
The political problem is mostly around providing enough homes in the places people want to live. The technologies to do this (multi-story apartment buildings, electric mass transit) are generally over 100 years old.
This isn't making your poor comfortable, its about human decency. The whole point of society is that the collective be worth the effort for the many, but for many that participation just means exploitation and desolation for the endless profit of capitalists they will never even see in person but whose influence keeps them in endless toil with an empty, unfulfilled life.