Is a house a McMansion regardless of what it has inside? One recent discussion of interior design hints that it depends on what the inside looks like:

Everyone loves a good feature in a house. Wainscotting adds texture to a boring room, stone on a fireplace makes a living room cozier, and a simple ceiling beam can elevate an entire room. These architectural flairs make a house feel more memorable. Without them, a space can feel like a developer rather than an architect created the design, building something of a McMansion. But while it’s important to add thoughtful features, HGTV’s Drew Scott points out that there can be too much of a good thing. While one of those accents can help make a house feel special, muddling them all together can make everything too busy.
Often, the features of McMansions are visible from the outside: a large size, a mish-mash of architectural styles, and/or a location in a suburban subdivision of similar mass-produced homes.
But could a McMansion be redeemed if the inside does not look like a McMansion? Or could a home be a McMansion if the outside does not look like it but the interior has McMansion features? Imagine a 2×2 table:
| McMansion interior | Not McMansion interior | |
| McMansion exterior | ||
| Not McMansion exterior |
The “typical” McMansion is in the top left cell: the outside and inside shows McMansion traits. The mixed categories are what is at stake here with the emphasis on interior spaces. Have the right design element inside and it could push a home out of the McMansion category.
I am not sure how this works. Who gets to render the ultimate McMansion judgment? Since McMansion is a negative term, does any shade of McMansion-ness mean the home is a McMansion?