The Snell-Gillett House, constructed circa 1880 and officially listed on the National Register of Historic Places, is a 3,096-square-foot Queen Anne Victorian estate located at 213 Mill St in Theresa, New York. Positioned on a 0.65-acre lot, this grandly proportioned home features traditional period architecture, highlighted by ceilings measuring nearly 10 feet, original carved wood mouldings, and classic stained glass work.
The entry layout begins with carved double front doors embedded with inlaid stained glass panels that open into a formal reception hall. This space retains its original ornamental woodwork, an antique brass chandelier, an ornately carved central staircase, and heavy brass door hardware. The main level floor plan features two separate fireplaces, a formal dining room, a living room, and two large, 5-foot-wide solid wood pocket doors. Comprising six bedrooms and three bathrooms, the extensive square footage offers flexible zoning options for a primary residence, dedicated multi-room office wings, or commercial hospitality use such as a bed-and-breakfast, subject to local municipal guidelines.
Structural and mechanical modernizations have been integrated into the historic structure over recent seasons. These include a new metal roof system and an energy-efficient propane fireplace installed in 2024, followed by the installation of 18 new double-paned replacement windows throughout the second story in 2025.
The property also features a separate detached garage and carriage house outbuilding. Previously configured as a professional office suite, this secondary building is equipped with dedicated heating infrastructure, operational plumbing lines, electrical wiring, a two-car garage bay, and an unfinished overhead loft space. Geographically, the property benefits from municipal Theresa electric utilities and sits within walking distance of Theresa Elementary School and the Indian River. The location provides convenient driving transit to Fort Drum, Watertown, the St. Lawrence River, and the 1000 Islands resort region.
📋 Property Specifications
💰 Price: $215,000
📍 Address: 213 Mill St, Theresa, NY 13691
📐 Interior Size: 3,096 sqft
🌳 Lot Size: 0.65 Acres (28,420 sqft)
🛏️ Bedrooms: 6
🛁 Bathrooms: 3 Full
🏗️ Year Built: Circa 1880 (NRHP Listed)
🚗 Outbuilding: 2-Car Carriage House (Finished Office + Loft)
🔍 Key Features & Details Explained
🏛️ National Register Historic Designation: Officially documented for preservation, the property retains intact, high-value late-19th-century Queen Anne features, including 10-foot ceilings, detailed millwork, and stained glass window installations.
🔥 Systemic Structural Updates (2024–2025): Core maintenance updates include a newly installed metal roof, 18 newly fitted dual-pane insulated upper windows, and an auxiliary propane fireplace unit.
💼 Finished Detached Carriage House: The separate outbuilding functions as a secondary economic or utility space, complete with independent utility lines, a workspace, and a raw expansion loft.
🪵 Grand Pocket Doors & Staircase: The formal entryway contains an ornate architectural layout anchored by a carved staircase rail assembly and dual 5-foot-wide wood pocket doors separating the primary parlors.
⚡ Municipal Theresa Electric Utility: The home is connected to localized village electric infrastructure, which provides lower ongoing energy utility rates compared to standard regional providers.
🗺️ Regional North Country Proximity: Located near the Indian River and local schools, with direct roadway transit access to the military installation at Fort Drum and the recreational waterways of the 1000 Islands.
Zillow link https://www.zillow.com/homedetails/213-Mill-St-Theresa-NY-13691/30561992_zpid/