[hgoel]

It's largely landlords causing trouble building housing where it's needed because it would limit how much they can make.

[shlant]

are you referring to NIMBY homeowners? because yes, people who own houses are the most likely to prevent more housing from being built (although not the only reason more housing isn't being built)

[hgoel]

Yep, referring to NIMBYs.

[cucumber3732842]

Landlords don't care. You put a 5/1 beside their slum and they're ecstatic because that means the land under their slum is now worth "build a 5/1 here" money.