Financier J. Christopher Flowers is in contract to buy an apartment for $50 million on Manhattan’s Upper East Side.

The apartment spans about 7,500 square feet and occupies an entire floor of the co-op building, according to the WSJ.

If it closes at the $50 million price tag, it will number among the most expensive recent transactions in NYC’s luxury market.

The 18-unit luxury co-op building at Fifth Avenue and East 66th Street is known for its high ceilings and views of Central Park.

The building has counted Paul Allen, the late co-founder of Microsoft, and Alan C. Greenberg, the late Bear Stearns chairman, among its residents.