It seems less and less prevalent. Most of the modest 1-story homes in my hometown have been steadily replaced over the past 10-15 years with obnoxious McMansio

It seems less and less prevalent. Most of the modest 1-story homes in my hometown have been steadily replaced over the past 10-15 years with obnoxious McMansions with very little space in between them. Square footage is the cheapest thing you can add to a house's up-front cost (key emphasis on "up-front") and fetches large premiums on home value. Just the reality of the market I guess.