The Windsor House in Winnetka has long been one of those properties locals speak about in almost mythical terms. It was built in 1928 for Popular Mechanics publisher Henry H. Windsor Jr. and his wife, opera singer Louise Hunter Windsor . The French Renaissance Revival estate was never just another mansion on the lake. Its iron gates, manicured gardens, and stately limestone façade always hinted at the kind of grandeur that rarely comes up for sale. In early September, that legacy grew even larger.

On Wednesday, Sept. 3, the 22-room lakefront estate changed hands for $31.3 million, setting a record for the most expensive resale of a single home in Chicago -area history. The sellers, retired Goldman Sachs banker Muneer Satter and his wife, Kristen Hertel, spent

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