The South Woodstock Common is a triangular greensward dotted with shade trees, many of them very large. The common is bounded by Stonebridge Road to the north, Connecticut State Route 169 to the west, and Roseland Park Road to the east. The topography of the common rises gradually from south to north and from east to west. The distinguishing feature of the space is the many fine old shade trees. The trees are mainly planted along the edges of the common. Several smaller flowering trees (crabapple and dogwood) have been planted in recent years. The largest and oldest trees are an oak in the center of the common and an ash near the Stonebridge Road boundary. Other species represented include London plane trees, juniper trees, and maple trees. Lying under the shade of the ash tree is a capped well. A few feet to the south of the well is a stone with a bronze plaque that reads, "Replanting, South Woodstock Common, Spring, 1970, In Memory of A.C. Simonds, 1900-1966, Founder, Linemaster Switch Corporation, by his friends."

East of the rock is a metal historical marker that commemorates the industry of northeastern Connecticut, which came to an end in 1866 when the Warner Dam burst, destroying "three bridges, two factories and damaging several businesses."

Below the sign is a time capsule, the granite cap of which reads, "Time capsule buried here by the students of Woodstock Public School, Oct. 23, 1986, to be opened in the year A.D. 2086."

A flagpole, which flies the American flag, is near the northeast corner of the common. Power poles and electric lines run the length of the green on Roseland Park Road and Connecticut State Route 169. Facing the common are several historic buildings. At the intersection of Stonebridge Road and Roseland Park Road is the South Woodstock Baptist Church, erected in 1844 by Samuel Underwood. The American Legion Hall, built in 1832, is at the opposite corner.

Facing the common on Stonebridge Road is the McClellan House, an 18th century residence that is now used for commercial offices. Residences that face the common on Roseland Park Road are mostly from the 19th century.

Several commercial properties line Connecticut State Route 169 across from the common. From north to south the properties include a store; gas station; modern post office building; 19th century residence; Christian Book Service and Gift Shop; and a restaurant property, The Harvest at Bald Hill.