The Facebook cofounder's 1905 Romanesque Revival home is currently one of the largest and most expensive for sale in the Kalorama neighborhood.
The property was put on the market for $2.2 million in September 2025—but has now been delisted for a second time.
RealDeal reports the transaction effectively valued the mansion at roughly $5.4 million and the adjacent vacant parcel at about $2 million, with the four new homes going up under an entity called ...