David E. Cornwell
Licensed Real Estate Salesperson
REALTOR®
Walton, NY
Office: (607) 865-7000 (607) 437-8941

43335 School House Road, Clayton, NY 13624

49 Total Photos [Click to View All]

Property Description

Welcome to Granite Point-an exceptionally well-built, year-round estate on sought-after Grindstone Island. Constructed in 2022 with an uncompromising focus on quality, durability, and long-term performance, this property offers a rare opportunity to own a nearly new, expertly crafted waterfront home at an incredible value in the Thousand Islands. Set on 8.2 private wooded acres with access to the island road network, the offering includes a 4,235 SF main residence, two barns, and 520 feet of prime waterfront with sweeping views of Canadian provincial park islands and award-winning sunsets-just moments from Canoe Point State Park and Grindstone Winery. Built to last in a river environment, the home features HardiePlank siding, metal/asphalt roofing, energy-efficient windows, and high-performance systems designed for year-round comfort and low maintenance. With 10' ceilings throughout and exceptional attention to detail, the residence offers both scale and craftsmanship rarely found at this price point. Inside, the home offers 5 bedrooms (3 ensuite, including a first-floor suite) and 5.5 baths with custom cabinetry and tilework. The kitchen is designed for entertaining, featuring dual SubZero refrigerator/freezers, two dishwashers, dual sinks, soapstone counters, inset cabinetry, a walk-in pantry, and premium appliances including a Viking propane range, electric wall oven, Miele speed oven, warming drawer, and built-in ice maker. Living spaces include a great room, formal dining room, and den with gas fireplace, along with a dual wood/gas fireplace. Systems include two high-efficiency heat pumps, central air, circulating hot water, whole-house stereo, motorized shades, Starlink internet, and exterior security. The Red Barn (28x60) includes a guest apartment, while the Gray Barn (26x36) offers storage, workshop space, and loft. Outdoor living features an ipe deck, covered porches, and dockage for four boats-perfect for enjoying the award-winning sunsets. Supported by well, septic, and a buried propane tank. A rare blend of new construction, superior build quality, and prime Grindstone Island location-Granite Point is a true legacy property

43335 School House Road | MLS# S1625312

This single family home located at 43335 School House Road, Clayton, NY 13624 is currently listed for sale with an asking price of $2,495,000. This property was built in 2022 and has 5 bedrooms and 4 full and 1 partial baths with 4235 sq. ft. School House Road is located in the Grindstone Island subdivision within the Thousand Islands school district. Search Grindstone Island real estate on david-cornwell.timberlandproperties.com today.

Gallery

Property Features

Property Type: Residential - Single Family
Basement: Crawl Space, Partial
Cooling: Heat Pump, Other, See Remarks, Central Air
Fireplaces: 2
Garage: 9
Heating: Electric, Heat Pump, Propane, Other, See Remarks
Home Style: Other, Two Story, See Remarks, Traditional
Lot Size: 8.20 Acres
Roof Type: Asphalt, Architectural, Metal, Shingle
Stories: 2.0
Taxes: $15,198
Year Built: 2022

Amenities

Breakfast Bar
Dry Bar
Den
Separate/Formal Dining Room
Entrance Foyer
Separate/Formal Living Room
Great Room
Country Kitchen
Kitchen Island
Other
See Remarks
Solid Surface Counters
Walk-In Pantry
Bedroom on Main Level
Bath in Primary Bedroom
Workshop
Dirt Driveway
Deck
Dock
Patio
See Remarks
Propane Tank - Owned

Feature Descriptions

Appliances: Dryer, Dishwasher, Exhaust Fan, Gas Cooktop, Disposal, Gas Oven, Gas Range, Indoor Grill, Microwave, Propane Water Heater, Refrigerator, Range Hood, Washer, Water Purifier Owned
Body of Water: Saint Lawrence Seaway
Community Features: Trails/Paths
Days on Site: 266
Exterior: Attic/Crawl Hatchway(s) Insulated, Composite Siding
Flooring: Ceramic Tile, Hardwood, Other, See Remarks, Varies
Laundry: Main Level
Lot: Irregular Lot, Other, Rural Lot, See Remarks
Lot Dimensions: 520X200
Parcel#: 223289-012-000-0001-006-000
Parking: Detached, Garage
Parking Notes: Detached, Garage
Patio/Porch: Deck, Open, Patio, Porch
Sewer: Septic Tank
Utilities: High Speed Internet Available
Water: Well
Water Features: Beach Access, Dock Access, Other, River Access, See Remarks, Stream
Window: Thermal Windows

Local Schools

School District: Thousand Islands

Estimate Your Payment

Estimated Payment

$ 7,547.00 per month $5,552.79 Principal & Interest $1,266.50 Property Tax $727.71 Homeowner's Insurance

Change Payment Information

%
years/fixed
yearly
yearly (est.)
(Payments are an estimate and may vary by lender)

Demographics

Listed By / Shown By

Listing By

Agency Name: Four Seasons Sotheby's Inter.
Agency Contact: 518-580-8500

Shown By

Agent Name: David E. Cornwell
Agent Phone: (607) 437-8941
Agency Title: Timberland Properties

IDX logo

All information is deemed reliable but not guaranteed. All properties are subject to prior sale, change, or withdrawal. Neither broker(s), nor agent(s) shall be responsible for any typographical errors, misinformation, or misprints, and shall be held totally harmless. Disclaimer: All information deemed reliable but not guaranteed. All properties are subject to prior sale, change or withdrawal. Neither listing broker(s) or information provider(s) shall be responsible for any typographical errors, misinformation, misprints and shall be held totally harmless. Listing(s) information is provided for consumers personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Information on this site was last updated 04/18/2026. The listing information on this page last changed on 04/18/2026. The data relating to real estate for sale on this website comes in part from the Internet Data Exchange program of Delta Media Group MLS (last updated Sat 04/18/2026 12:03:48 AM EST) or Global MLS (last updated Fri 04/17/2026 11:52:09 PM EST) or New York State Alliance MLS (last updated Fri 04/17/2026 11:58:41 PM EST) or Hudson Valley Catskill Region MLS (last updated Sat 04/18/2026 12:01:12 AM EST) or OneKey MLS (last updated Sat 04/18/2026 12:00:19 AM EST). Real estate listings held by brokerage firms other than Timberland Properties may be marked with the Internet Data Exchange logo and detailed information about those properties will include the name of the listing broker(s) when required by the MLS. All rights reserved.

All information is deemed reliable but not guaranteed. All properties are subject to prior sale, change, or withdrawal. Neither broker(s), nor agent(s) shall be responsible for any typographical errors, misinformation, or misprints, and shall be held totally harmless.

Privacy Policy / DMCA Notice / ADA Accessibility

Login to My Homefinder

Pixel