National Register of Historic Places Private Buildings: Cos Cob Power Station Sound Shore Drive, Cos Cob Built: 1907; Listed: 1990; Demolished: 2000 Samuel Ferris House E. Putnam Avenue and Cary Street, RiversideBuilt: c. 1760; Listed: 1989 French Farm 524 Lake Avenue, GreenwichBuilt: 1906-1911; Listed: 1975 Greenwich YMCA 50 East Putnam Avenue, GreenwichBuilt: 1916; Listed: 1986 Hawthorne Mill & Depot Building Listed as New Mill and Depot Building, Hawthorne Woolen Mill350 Pemberwick Road, GlenvilleBuilt: Mill 1881, Depot 1875; Listed: 1990 Indian Harbor Yacht Club 710 Steamboat Road, GreenwichBuilt: 1920; Listed: 2010 Thomas Lyon House Also known as Lyon Cottage1 Byram Road at W. Putnam Avenue, ByramBuilt: c. 1695; Listed: 1977 Rosemary Hall Also known as the Japanese SchoolJunction of Ridgeway and Zaccheus Mead Lane, GreenwichBuilt: 1901-1928; Listed: 1998 Sylvanus Selleck Gristmill 124 Old Mill RoadBuilt: c.1796; Listed: 1990 Josiah Wilcox House 354 Riversville RoadBuilt: 1838; Listed: 1988 Municipal Buildings Josiah Wilcox House 354 Riversville RoadBuilt: 1838; Listed: 1988