> This is going to continue until planning commissions start allowing the construction of higher density housing.

Or we have more remote jobs, and/or satellite offices. For example in the UK why have your developers in London? Open an office in Newcastle or Glasgow, you're just a few hours away by train (an hour on the plane) and you'll save a fortune on salaries and office space (and probably a tax break or two). Or use remote workers where it makes sense.