The 20-acre Phipps Estate in Old Westbury has a 12,000-square-foot house designed about 1930 for investment banker and racehorse breeder-owner Ogden Phipps. He died in 2002. His daughter Cynthia, a horse breeder-owner and chairwoman of the Animal Medical Center in Manhattan, used it as a weekend home until her death from injuries in a fire in her city apartment last fall. The home has parquet floors, 16-foot ceilings, six bedrooms, five servants’ quarters, a caretaker’s cottage, garage apartment, pool, tennis court and fishpond. It is listed for $13 million with Piping Rock Associates, Locust Valley. (Handout / May 16, 2008)