I lived until recently in a very swanky neighborhood that was constantly under attack for not having low income housing. The loveliness of the town - beautiful homes, clean streets, zero crime, were reflected in the huge housing costs. After years of litigation, the town agreed to build low income housing.

They built one apartment building (pre-fab, like Legos) for elderly low income. No other family members may live there. No use of schools. They had to transplant old people from inner cities to fill it up. But, because the "grankids" can't stay with grandma to use the schools, it worked out. Also, it is located on a highway overpass, barely within the town limits. You'd never know it was there.