$40 Million Mansion

This 1857 Brooklyn Heights mansion with 17,500 square feet at 3 Pierrepont Place is listed for $40 million. It is known as the Low Mansion for its original owner, A. A. Low, whose son Seth Low was mayor of Brooklyn in the 1880s and mayor of New York in 1902-03. The building has been subdivided into eight apartments, to be delivered vacant.