An estate, originally designed by McKim, Mead, and White, was restored and adapted to modern use as condominiums. The mansion was converted into five residences, and twenty-four new townhouses were located around a formal garden. The principal rooms of the old house were retained. The new buildings, while contemporary in expression, were designed to be compatible with the old house in character, materials, and scale. The estate is listed on the National Register of Historic Places.

Awards: Whitefield received a Special Citation from New York State for Historic Preservation and from Beaux Arts '86 for Excellence in Design.