Well, single-family houses and semi-detached houses have a nicer structure: generally less turnover and a stronger neighborhood mentality. We are here in the village, and I have never experienced people from apartment buildings really getting involved in the neighborhood. I've also lived in one once, and none of the neighbors (including us) made much effort. It's somehow different. In that respect, I have to narrow my statement: it is actually directed against apartment buildings per se, at least the ones directly opposite.
A bit off topic on the subject of social housing: if you look at a map showing where it is, many would be surprised. It is often associated with [Plattenbau] or something like that, but very often they are [Einliegerwohnungen] or townhouses. And as long as it's not written on the outside, no one gets upset. Definitely not the one from your [Einwohnerversammlung] ;)