The one easy thing that every country should do is ban parking requirement.

Requiring developers to build parking in every apartment building significantly increases the cost of housing. These costs are always passed on to new buyers.

Parking requirements also encourage extreme car dependency.

https://www.ecf.com/en/news/cut-housing-costs-by-up-to-20-reforming-parking-mandates-for-affordable-housing/

IMO: look at what Vienna is doing. Affordable housing for everyone is keeping prices in check and avoids corpo-thugs gangraping the public.

Edit: typo.