WASHINGTON — The most expensive residential real estate sale in the D.C. region in 2017 may well have been the largest residential real estate sale in the area ever, and the house itself is a bit of a mystery.

The sale was off-market, meaning it was a private transaction that did not involve an actual market listing. There are no images of the home available from either real estate listing service Bright MLS or from TTR Sotheby’s International, which represented both buyer and seller.

The 6.5-acre estate was built in 2002. The nearly 12,000-square-foot home includes six bedrooms, seven full baths and four half baths.

WTOP’s content partner, the Washington Business Journal, reported in August that the July 12 sale of 750 Chain Bridge Road for $35 million — full asking price — was sold by Dwight Schar, founder of Reston-based homebuilder NVR Inc. The Business Journal reported that the buyer was a limited liability corporation called CBR LLC.

The home sits in a good neighborhood. AOL co-founder Steve Case’s estate, called Merrywood — a childhood home of Jacqueline Kennedy Onassis — is on the market for $49.5 million, according to The Wall Street Journal.

The second most expensive sale in 2017 was a 7,700-square-foot, seven-bedroom Woodley Park mansion at 28117 Woodland Drive NW that sold for $14 million, also the full asking price.

Eight of the 10 most expensive residential real estate sales in the D.C. region in 2017 were in D.C. The other two were in McLean, Virginia.

Scroll through the slideshow to see photos and details of the area’s most expensive residential real estate sales last year, courtesy of Bright MLS.

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