Sorry, but fuck this idea in its entirety. This would allow for MORE apartment buildings to be built, since that is how capitalism works, which results in more damage to the surrounding wildlife. L
We need more regulations, and we need a more conscious approach to our housing in general. We should be approaching this with symbiosis in mind, cooperating with nature rather than bending it to our will.
Those houses on the left? Yeah, you could cram so many actual gardens that give you actual food and which could bring so much biodiversity, but we sticking to flat, pure grass gardens that do nothing other than be flat and look green. Fuck everything here.
Sure, let's build what we NEED to build in a conscious way, but have you seen the housing market as of late? China was printing useless buildings everywhere they could just to keep their faux market going, and any place without regulations will try to cram as many people as possible in as little space as possible, forgoing any quality of life or even safety designs in place of profitable designs.
We love to come together in big cities, and even jobs that don't need to be on-site end up being on-site, thus worsening the problem. There's a ton of land out there that could be turned into sustainable housing solutions that could benefit both the people and the environment. I'm just saying we should probably consider other alternatives to "suburban hell" and "communist hell".
I don't think we're anywhere close to having to even think about the possibility of developers building too much housing. And yes, regulations solve the issues you bring up, we absolutely need to enforce the ones we have and many areas need more. Soundproofing should be mandatory in multifamily buildings for example.