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A large new house, usually constructed as part of a suburban development and characterized by ostentation rather than quality of workmanship or architectural distinction.

[Mc(Donald's), trademark of a fast-food restaurant chain (from its mass-produced nature) + mansion.]


(Architecture) informal derogatory a large modern house considered to look mass-produced, lacking in distinguishing characteristics, and at variance with established local architecture
[C20: a corruption of McDonald's, a major American fast-food enterprise noted for the ubiquity of its restaurants]
References in periodicals archive ?
He, too, was moving his suburban McMansion household into a tiny Spanish Revival house two blocks from the ocean.
Money," he says, "is a McMansion in Sarasota that starts falling apart after 10 years.
Real estate listing company Zillow will not sue a blogger behind the satirical site McMansion Hell.
in a McMansion full of beige & chintz, presidents of this &
Todd Chrisley, his second wife Julie and their younger kids live in a house big enough to be called at least a Mc-Drive-Thru, if not an out and out McMansion.
Now the era of the ever-expanding McMansion appears to be coming to a close.
A chicken in every pot became a McMansion on every plot and a Hummer in every driveway.
I play Mrs Jones and we're a hired family who live in a McMansion and our job is stealth marketing.
The business, Chestnut Grove Nursery, became successful, spawning several additional ventures, but the trophy house my father built would fit in the basement of the average McMansion today.
Do they really think every American (or global citizen) can have three tv's, two cars, air conditioning and a McMansion full of plastic toys?
The annoying, and often wholly without taste, McMansion building boom in my neighborhood seems to have ceased.