> For their retirement in a suburb of Asheville, N.C., Ben and Valentina Bethell spent about $3.5 million in 2009 to build their dream home: a roughly 7,500-square-foot, European-style house with a commanding view of the Blue Ridge Mountains.
Put $3.5m into https://dqydj.com/net-worth-percentile-calculator-united-sta... and you find that they are at least in the 96.5 percentile. (They are unlikely to have mortgaged it, as most lenders won't lend past retirement for obvious reasons)
The house is 700 (seven hundred) square meters. By comparison, London is banning the construction of "mega homes" over 150m2 in an attempt to prevent hypergentrification by oligarchs. These people in the article are the wealthy who haven't noticed that the ladder has fallen away behind them leaving nobody to buy their mansion.