Springbank is a historic country estate at 69 Neck Road in Old Lyme, Connecticut. Built upon a small core structure dating from around 1730, the main house consists of an 1844 Greek Revival brick structure, to which a number of Colonial Revival additions and alterations were made between about 1930 and 1945. The property also includes formal gar…Springbank is a historic country estate at 69 Neck Road in Old Lyme, Connecticut. Built upon a small core structure dating from around 1730, the main house consists of an 1844 Greek Revival brick structure, to which a number of Colonial Revival additions and alterations were made between about 1930 and 1945. The property also includes formal gardens designed by landscape architect Marian Cruger Coffin. The property is notable as a well-documented and preserved smaller-scale example of her work. The property was listed on the National Register of Historic Places on August 17, 2001.