[meme] Unfortunately anti-freedom zoning is not limited to the US
The maps show where it's literally illegal to build anything denser than a detached single-family house. The maps are a little outdated, as Minneapolis famously abolished detached single-family zoning a couple years back. However, it's still only legal to build up to triplexes on most of the land still there. Nonetheless, this has proven enough to stop rents from rising.