The architectural world’s most hated structures may finally be meeting their demise. McMansions, the cheaply-built, faux-opulent mega-houses that litter many of the world’s suburban communities, were born in the 1980s and quickly became the most desirable living accommodation for middle and upper-middle class families. After a slight blip caused by the financial recession of 2008, McMansion popularity returned, with the median size of homes reaching a peak of 2,488 square feet just last year. But as seen in a new study conducted with data from real estate website Trulia, the economic benefit of purchasing one of these houses may now finally be falling.