| Name | Styles | Significance | Periods |
|---|
Bennett - Shattuck House (653 Martins Pond Rd.) | Federal | architecture, community planning and development | 1875-1899, 1900-1924, 1950-1974, 1850-1874, 1825-1849, 1925-1949, 1800-1824 |
Gov. George S. Boutwell House (172 Main St.) | Italianate, Greek Revival | architecture, communications, education, politics, government | 1900-1924, 1850-1874, 1925-1949, 1875-1899, 1950-1974 |
Groton Inn (Main St.) | No Style Listed | architecture, social history | 1750-1799, 1850-1874, 1825-1849, 1800-1824 |
Groton Leatherboard Company (6 W. Main St.) | No Style Listed | community planning and development, architecture | 1900-1924, 1925-1949, 1950-1974 |