 The South Green Historic District encompasses a predominantly 19th-century residential area.This area features a variety of residences in both high and common styles, from the elaborate home of armsmaker Samuel Colt to multi-unit apartment houses, many of which were built between about 1860 and 1900.The district is roughly triangular, extending from South Green along Main Street and Wethersfield Avenue to include Morris, Dean, and Alden Streets.