In foreign countries, private property among a low-rise housing stock is not that common. There are housing cooperatives, cooperative cottage countries, low-cost housing proprietor associations uniting resources to create and support housing infrastructure, and rental housing...
A low-rise housing is easier to transform and implement innovative technologies (energy-saving, resource-saving), its reconstruction may be done without heavy machinery.
Moreover, an improved housing stock will increase the sum of taxes collected. Note that I touch upon only technical and economic advantages of a low-rise housing stock on principle.