Turtle Bay Gardens, 1937. Purchased by socialite Charlotte Hunnewell Martin in 1918, the eleven 1860s-built townhouses on the south side of 49th Street and nine on the north side of 48th Street underwent two years of renovation. The extensive work included the creation of a communal garden space at the center of the block. The individual backyards are separated only with low brick walls, while a broad esplanade at the center is shared by all. When the work was complete on the homes, Martin did the unexpected; she sold the homes at cost (to her friends). Residents of the homes have included Katharine Hepburn, Tyrone Power, Stephen Sondheim, and E. B. White.