those big generic, nauseating houses that you now see in suburbs. They're usually built by "home builders" and are put close together to increase profit for greedy land
developers. They're very cheaply built and it probably took more time to ship in the equipment than it did to actually build
the damn thing.
On the outside they look like they are just patches of different incompatible
architecture styles, and they usually look the same. THe yards are full of generic plants and bushes that the builders probably got from Wal-Mart. The walls are usually made of sheetrock and the backs of the "house" are less showy than their fronts.
Mcmansions have no real physical or historical value since they can barely last for one generation and they all look the same and are a piss stream's length away from the mcmansion next door.
Mcmansions tend to be bought by yuppies and soccer moms who just want to look like they're rich and don't care about actual physical or historical value.
Plus mcmansions contribute to urban sprawl which is bad for the environment since most of the new suburbs where these mcmansions exist were once rich farmland or irreplaceable woodland.