Build more 2 million dollar flats. How high can we build these days? 2 million dollar flats are nice flats. Have robots and AI build as many nice flats as people want.
I like to talk about living by the sea, near a nice beach. That's a limited resource.
Of course you can build skyscapers by the beach, like in this photo: https://f.vividscreen.info/soft/9eba11ee5bc029cbef496435a40f...
It's just not the type of beach everybody wants.