Housing crises are a symptom , not a cause. The root issue is demographics, specifically the worker-to-retiree ratio growing at a rate that outpaces productivity growth. Since saving is essentially impossible at societal scales and generational timeframes (how exactly is a car built in 1980 supposed to cause more nurses to provide healthcare in 2020?), tomorrow's workers have to be coerced into transferring real good…
The reality is that housing is the main mechanism used by the older wealthy folk for their pensions, and subsequently transfers wealth up through the generations.
What we need is a way for all that unproductive capital used to directly fund the businesses of the young, growing the real economy (rather than the financial).
Alongside that, additional legislative arrangements to provide security for renters.
Pension pots should be a return on investment, not speculation.