Northeast Private Client Group is pleased to present South End Plaza, a 19-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.