South End Plaza

South End Plaza sits on South Main Street in Thomaston, in the Naugatuck Valley. The property is less than a mile from Route 8 (Exits 38 and 39), the expressway that runs the length of the valley. Route 8 connects south to Waterbury in 10 to 15 minutes and on toward Bridgeport and the shoreline, and north toward Torrington. U.S. Route 6 runs through Thomaston’s Main Street, east to Bristol and southwest to Watertown. Thomaston is a historic mill town named for the clockmaker Seth Thomas, whose factory helped bring the Naugatuck Railroad through the valley. Its walkable downtown centers on the 1884 Thomaston Opera House, which still serves as the town hall and home to the Landmark Community Theatre. The Railroad Museum of New England runs heritage excursions from the historic Thomaston Station. The town keeps a working manufacturing base in metalworking, electronics, defense, and packaging. The borough is reinvesting in its center, with Sustainable CT certification, Naugatuck River Greenway construction, Seth Thomas Park renovations, and a stated focus on housing and economic development. Thomaston is not itself a Metro-North stop. The nearest station is the Waterbury Branch terminus about nine miles south, which connects to the New Haven Line toward New York.Northeast Private Client Group is pleased to present South End Plaza, a 17-unit mixed-use retail and apartment property at 310 South Main Street in Thomaston, Connecticut, offered at $2,450,000. Built in 1971, the two-story building totals about 14,614 square feet on a 0.77-acre parcel, with seven ground-floor commercial suites below ten second-floor apartments that have private rear ground-level access. An on-site asphalt lot of roughly 10,000 square feet sits less than a mile from Route 8 at Exits 38 and 39. The apartment rents currently run between $1,300 and $1,600 a month, and the occupied commercial suites average about $14.20 per square foot. The commercial tenants are Thomaston Smoke & Vape, KC’s Package Store, Elegant Nail & Spa, and S & S Laundry. Two of the commercial leases date to 2011 and 2013. The tax basis is stable. Thomaston completed its town-wide revaluation in 2025, which fixes the property’s assessed value through the next revaluation in 2030, and Connecticut does not reassess on sale, so the assessment will not step up at closing. The property presents a compelling value-add mixed-use opportunity with multiple paths to grow revenue. A new buyer can lease the two vacant commercial suites, bring residential and commercial rents to levels established by the market, and recover more of the water and sewer cost through CAM.