Another amazing transaction has been completed by the Itteilag Team of Long & Foster Real Estate, Inc. Fessenden House has sold for $18 million. The house was put on the market last May for $22 million, making it the city’s most expensive listing of 2015. It sold for $18 million December 30 to the Embassy of Kuwait, according to DC property records.

Giant Food supermarket heir Samuel Lehrman built the mansion nicknamed Fessenden House effectively as a warehouse for his collection of 18th-century art and furniture. The grand, 20,000-square-foot Neoclassical home, which sits on a one-acre parcel—on Fessenden St NW in Forest Hills is packed with amenities in addition to its seven bedrooms and 14 bathrooms: elevator, climate-controlled wine cellar with a tasting room, swimming pool, pool house, formal and cottage gardens, and a sports court.

Lehrman built the house in 1994 after combining three neighboring lots and importing many of the building materials, including the Indiana limestone that makes up its façade. The interior, which is full of wide foyers and vaulted ceilings, was built around Lehrman’s art collection.

Listing agent, Nancy Itteilag of Long & Foster, says the sale went through surprisingly fast for Washington’s ultra-luxury real-estate market. “Usually they stay on the market for three years and go through multiple price reductions,” she says. Although Lehrman never officially lowered the price on the house, the lower offer he ultimately accepted wound up making it the second-most-expensive home sold in the District last year.

Itteilag told the Wall Street Journal that DC’s high-end housing market was “increasingly active” when she listed Lehrman’s house last year. Seventeen houses and condominiums in DC sold for at least $5 million last year, according to the real-estate company Redfin. Itteilag says December was particularly hot—her firm had four clients make offers on high-end properties in the two weeks leading up to Christmas.