Baywood sits on land that Virginian William Heth sold to Jacob Negley (ancestor to the Mellon family) in 1799. In 1856, it became the estate of Alexander King (grandfather to Richard King Mellon), who introduced soda ash to the glass-manufacturing industry. When the house that Negley built burned in 1879, King replaced it with this two-and-one-half-story red brick structure in a somewhat stiff Second Empire style, with a mansard roof, single- and double-arched dormer windows, and tall square tower. A greenhouse veranda across the front allowed Cordelia King to raise exotic plants and butterflies. Unfortunately, the two subsequent generations of the family who occupied the house allowed its lush planted terraces to go to ruin. Deeded in 1954 to the city of Pittsburgh as a cultural center, the mansion was sold in 1994 and was restored as a single-family dwelling.