The Hanover Green is semicircular in shape. The .4 acre greensward is bounded by Main Street on the west, Potash Hill Road on the northeast; and a dirt road leading to a Private home on the southeast. It slopes slightly toward the east and remains largely unimproved. Two maple trees and a large conifer provide the only shade. A rusty flagpole stands near the center. If it weren't for the Congregational Church (1847) across Main Street at the northwest corner and the burying ground to the south, the grassy plot could easily be taken for the front yard of the early 19th century house facing the green.

The five buildings around the green date primarily from the first half of the 19th century. The major exception is a box-like, early 20th century parish house with later additions. It is a strong presence across from the green on Main Street, but the Congregational Church next to it dominates the cluster of buildings at the crossroads. The former Lisbon Tavern (c. 1800) is at the northeast corner. A gambrel-roofed house facing the dirt road is also a strong presence, magnified by the number of outbuildings associated with it. The house and barns have recently received new asphalt shingle roofs.

Memorial Day parades used to end on the green where services were held, but this hasn't happened for at least sixty years. The green was used as a play yard by the school children until the school was torn down. The rural nature of the site is reflected in the unimproved quality of the green. While the streetscape remains relatively intact despite the 20th century losses, the strong presence of the 20th century parish house detracts somewhat from its historic character.