[igorkraw]

While the replies are jumping onto rent control (which is bad) the other parts of your suggestions bare a much better solution imo: public or for-public housing. My native germany also fucks this one up, but the best thing would he to use some form of eminent domain to kick out stratefically located villas and old homes, tear them down/renovate them and build up public housing in small-but-cheap apartmenta that can then be given to resident coops or other democratic-but-not-the-state entities. Vienna does this (public housing, not evicting millionaires or old-settles-residents) and it works quite well because it addresses the demand side. Induced demand for housing of this type is limited I think (it's a big decision and people don't generally choose cities only because od the price) and you could even adress the "granny loses her old house" to some degrew by offering evicted tenants extra-nice apartments as a reimbursement on top of the eminent domain reimbursment (at least in germany this one exists, government cannot simply take your land).

Like this you drop the prices in the "normal people" segment without rent control