Wellesley Island NY Real Estate & Homes for Sale

14 Properties Found

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Beds:
1
Baths:
1.00
Sq.Ft.:
671
Status:
Active
MLS#:
S1702633
Type:
Condo
Subdivision:
Dairy House Condo
Lot size:
0.01 Acres
Year built:
1890
A broker reciprocity listing Courtesy: Garlock Realty 315-482-6000
View additional info

ADDITIONAL INFORMATION

Beautifully maintained 1-bedroom, 1-bath contemporary condo situated in the Historic Dairy House on Wellesley Island, The property features an open floor plan, new custom kitchen with solid surface countertops, high end luxury vinyl flooring, new bathroom, new washer dryer unit and much more. The condo is situated on the second floor and includes a beautiful porch area to enjoy your evenings. This location is ideal as its walking distance to the St Lawrence River, 18- hole golf course, pickle ball courts and restaurants. Call now for details & showing, properties like this rarely come on the market.

Beds:
2
Baths:
1.00
Sq.Ft.:
432
Status:
Active
MLS#:
S1700638
Type:
Other
Lot size:
0.26 Acres
Year built:
1985
A broker reciprocity listing Courtesy: Bridgeview Real Estate 315-782-9292
View additional info

ADDITIONAL INFORMATION

Nestled in the trees on beautiful Lake of the Isles, this cozy two-bedroom cottage is the perfect place to escape and enjoy the river lifestyle. Start your mornings, or unwind in the evenings, on the spacious screened porch, where you can relax with peaceful water views and enjoy the sights and sounds of nature. Lake of the Isles is well known for its excellent fishing and scenic beauty, making this an ideal retreat. A long dock stretches through the marsh, providing protected dockage for your boat and easy access to the river. The open deck is ready for your grill, making it easy to enjoy summer cookouts. Being sold mostly furnished, this cottage is ready for you to start making memories from day one—just pack your bags and pick up some groceries. The 2 chairs and a mini-loveseat that converts into a very comfortable bed, are included. The beds and dressers, and the kitchen appliances are also included; everything you need to start living the river life. The open kitchen and living area offer a comfortable gathering space for entertaining or relaxing after a day on the water. A mini-split provides heat and AC allowing you to comfortably extend the season. Spray foam insulation in the crawl space keeps that area about 50 degrees even during frigid winter days, making a winter trip possible. Whether you're searching for a seasonal getaway, a fishing camp, or a peaceful waterfront retreat, this charming cottage offers an opportunity to enjoy all that life on the river has to offer.

Beds:
4
Baths:
3.00
Sq.Ft.:
2,016
Status:
Active
MLS#:
S1698416
Type:
Other
Lot size:
0.52 Acres
Year built:
1989
A broker reciprocity listing Courtesy: Garlock Realty 315-482-6000
View additional info

ADDITIONAL INFORMATION

Experience refined living in this custom-built 4-bedroom, 3-bath home ideally situated on the prestigious Thousand Islands Golf Course. Designed with timeless quality and comfort in mind, this exceptional residence features custom cherry cabinetry, hardwood floors, elegant traditional moldings, and fine craftsmanship throughout. The spacious living room is highlighted by a cozy fireplace, while the bright sunroom provides additional living space with picturesque views of the golf course and beautifully manicured grounds. The fully finished basement offers abundant space for recreation, entertaining, or a home office. Additional amenities include an attached two-stall garage, paved driveway, and meticulously maintained landscaping. Enjoy the rare convenience of walking to the St. Lawrence River, local marinas, and nearby amenities while embracing the peaceful surroundings of one of the Thousand Islands' most desirable golf course communities. Opportunities to own a home in this location are rare to find. Call now for details & showing.

Beds:
7
Baths:
5.00
Sq.Ft.:
3,602
Status:
Active
MLS#:
S1695698
Type:
Other
Lot size:
1.6 Acres
Year built:
1990
A broker reciprocity listing Courtesy: Garlock Realty 315-482-6000
View additional info

ADDITIONAL INFORMATION

Nestled in the highly sought-after Westminster Park neighborhood, this exceptional 4-bedroom, 3-bath waterfront home offers an unparalleled Thousand Islands lifestyle. Located directly across the road from the golf course, the custom residence features soaring cathedral ceilings, a beautifully designed gourmet kitchen, formal dining room, and spacious living areas showcasing picturesque water views. The finished walkout lower level includes a private gym and opens to multiple patios, perfect for entertaining or relaxing outdoors. Enjoy private deep-water dockage, a separate 3-bedroom bunkhouse for family and guests, and beautifully landscaped grounds offering both privacy and tranquility. Combining premier waterfront living with golf just steps away, this remarkable property is a rare opportunity in one of the area's most desirable communities. Call now for details and private showing. Locations like this rarely come on the market.

Beds:
4
Baths:
3.00
Sq.Ft.:
1,938
Status:
Active
MLS#:
S1694815
Type:
Condo
Subdivision:
Chalet/Wellesley Island
Lot size:
0.01 Acres
Year built:
1900
A broker reciprocity listing Courtesy: Garlock Realty 315-482-6000
View additional info

ADDITIONAL INFORMATION

Rare opportunity to own a premier waterfront condominium in the highly sought-after Swiss Chalet. This spacious 4-bedroom, 3-bath residence offers soaring ceilings, hardwood floors, and a beautiful brick fireplace in the open-concept living area. Expansive windows and a large waterfront porch showcase spectacular panoramic views of the St. Lawrence River. Living in the 1000 Islands means waking up every day to the kind of river life people dream about. With deep-water dockage right outside your door, you can bring larger boats, head out for sunset cruises, or simply enjoy effortless access to the St. Lawrence. When the weather warms up, the river becomes your personal playground — swimming in clear, refreshing water, jumping off the dock, or floating the afternoon away. And all of it is wrapped in the unmistakable magic of the 1000 Islands lifestyle — castle views, island horizons, vibrant summers, peaceful mornings, and that feeling of being connected to one of the most beautiful waterways in the world. It’s not just a feature of the property; it’s the joy of living here. Call now for details & private showing.

Beds:
4
Baths:
2.00
Sq.Ft.:
1,687
Status:
Active
MLS#:
S1694937
Type:
Other
Lot size:
0.11 Acres
Year built:
1930
A broker reciprocity listing Courtesy: Brzostek's Real Estate 315-678-2000
View additional info

ADDITIONAL INFORMATION

Real Estate Auction on Aug. 9, 2026 @ 1 PM! No Minimum Bid. List price reflects assessed value! Bidding Starts at $1! Delayed Showing. Showings on 8/2 & 1 hour prior to the Auction only. This is a Live Onsite & Online Unreserved Waterfront & Land Real Estate Auction! *By Order of the NYS Supreme Court, Jefferson Co. Real Estate Features: Prime St. Lawrence Riverfront Seasonal House w/40’ of Water Frontage w/extra 50’ x 80’ +/- Lot across the Street for parking to be Auctioned Together. LOT 1/Parcel 1: 4 Bdrm Seasonal Residence on 40’ x 115’ +/- Lot the South shore of Wellesley Island (Fineview) w/40’l x 5’wide wood Crib Dock, 15’ x 20’ Wood Dock. Newly remodeled front Porch w/Pine wainscoted ceiling & walls & 9 – sliding windows for spectacular views of the River! 3- 3 paned Picture windows on back wall to Open Front Living & dining rooms w/Yellow Pine wainscoted walls & ceilings, Ceiling Fan, Berber Carpets & walk through Closet. Eat-in Kitchen w/Modern White painted cabinets, Breakfast Bar, Frigidaire™ Induction Oven Range w/exhaust & light above, Haier™ Refrigerator/Freezer, formica countertops, dbl. SS Sink, North Facing Greenhouse Bay window toward back yard & Peninsula w/butcher block style countertop. Rear Door to Laundry Rm w/Washer & electric Dryer, 150 AMP Electric CB. Full Bath w/Oak Vanity w/white sculpted Marble sink, Mirror, ceiling light, Walk-in 3 pc. Fiberglass Shower w/ Glass Sliding Door, Jacuzzi™ Comfort height Toilet, sm. Window, wainscoted walls & laminate floor. stairway to 2nd floor w/4 corner Bdrms each w/a ceiling light, carpet over painted hardwood floors, wainscoted walls & ceilings throughout. Half Bath w/White pedestal Sink, ceiling light & comfort height Toilet. Attic stairs from a Bedroom to Attic used for extra sleeping area w/older window & slanted ceilings. Kerosene Monitor heater w/Fuel tank outside. St. Lawrence River Water & Public Sewer. Built approx. 1930. To Be Auctioned w/50’ x 80’ +/- Lot Kitty corner across the Steet on the corner of Wellesley Island State Park Golf Course entrance. Tax ID: 13.09-1-2. Additional Vac. Lot on Omar Ridge to Be Auctioned Separately at 42778 Co. Rte. 100, Wellesley Island, MLS# 1695022.

Beds:
3
Baths:
3.00
Sq.Ft.:
1,059
Status:
Active
MLS#:
S1687307
Type:
Condo
Subdivision:
Tennis Island Sec 1
Lot size:
0.15 Acres
Year built:
1986
A broker reciprocity listing Courtesy: Garlock Realty 315-482-6000
View additional info

ADDITIONAL INFORMATION

Welcome to 46619 Tennis Island, an extraordinary waterfront residence offering commanding views of iconic Boldt Castle along the storied Millionaire’s Row. This 3-bedroom, 2.5-bath home with a 2-car garage presents a rare opportunity to enjoy an elevated riverfront lifestyle in one of the region’s most memorable settings, with a layout designed for both effortless living and easy maintenance. Boating enthusiasts will appreciate 80 feet of docking space, including a 40-foot dock with a deep-water slip ideally suited for a cruiser. The dock has been thoughtfully refaced with new boards and structure, while the expansive deck has been reimagined as a low-maintenance outdoor retreat complete with a propane firepit—an extraordinary setting for relaxing, entertaining, and enjoying views of Boldt Castle. From this remarkable vantage point, you can also watch ships pass by the castle, including impressive tankers and cruise ships, adding yet another layer to the ever-changing waterfront panorama. This exceptional setting also offers what may be the finest view for July 4th fireworks, creating an unforgettable backdrop for summer evenings on the water. Inside, the home is perfectly positioned to capture its spectacular surroundings. From the main living spaces to the private bedrooms, the ever-changing views of Boldt Castle create a striking backdrop that brings a sense of grandeur and tranquility to everyday life. Set within a golf cart–friendly community, the home is just moments from the TI Club for dining, cocktails, and summer treats, with nearby golf adding to the appeal of this coveted destination. Properties with views of this caliber seldom become available, offering the next owner an exceptional chance to personalize a premier waterfront address.

Beds:
3
Baths:
1.00
Sq.Ft.:
1,542
Status:
Active
MLS#:
S1683316
Type:
Other
Lot size:
0.5 Acres
Year built:
1989
A broker reciprocity listing Courtesy: Garlock Realty 315-482-6000
View additional info

ADDITIONAL INFORMATION

Charming 3-bedroom, 1-bath cottage located directly on the St. Lawrence River, offering classic waterfront living with beautiful views. The home features a bright and open living area with a cathedral ceiling, open floor plan, formal dining room and a full glass front overlooking the river, creating a light-filled, airy interior. Enjoy exceptional outdoor living with spacious decks ideal for relaxing and entertaining, along with a cozy enclosed porch that extends the living space. The property includes deep-water dockage, perfect for boating, swimming, and easy access to the river. Also offers plenty of space for cars and storage. A wonderful opportunity to own a well-kept river cottage in a desirable Thousand Islands setting. Call now to preview this turn-key property, owners are retiring to Florida.

Beds:
4
Baths:
2.00
Sq.Ft.:
1,604
Status:
Active
MLS#:
S1681172
Type:
Other
Lot size:
0.5 Acres
Year built:
1880
A broker reciprocity listing Courtesy: Lake Ontario Realty, LLC 315-649-3434
View additional info

ADDITIONAL INFORMATION

Check out this INCREDIBLE location of this main shipping channel view property on Wellesley Island with 180-degree views!!! This "Point" is truly one of a kind and you feel like you are right on top of the river!!! This sweet older Historic Home has had 2 additions and many renovations! Open floor plan on main level, master suite with bath, large living areas with Gas Fireplace and amazing views!!!! Truly amazing views everywhere! 3 bedrooms/bath upstairs, plenty of space, 2 car garage, 2 sheds and a nice docking area for multiple boats!! Quiet and small private drive plus located close to the Golf Course, hardware store and more!! Enjoy protected boating in the bay directly off the channel and a quick boat ride to all your favorite hot spots! Call today for more info and your private viewing!!

Beds:
4
Baths:
2.00
Sq.Ft.:
1,864
Status:
Active
MLS#:
S1679213
Type:
Other
Lot size:
0.4 Acres
Year built:
1964
A broker reciprocity listing Courtesy: Keller Williams Northern New York 315-459-6619
View additional info

ADDITIONAL INFORMATION

Welcome to waterfront living at its finest on beautiful Wellesley Island! Nestled along 100’ of pristine Lake of the Isles waterfront, this impeccably maintained year-round home is an absolute beauty both inside and out. From the moment you arrive, you’ll appreciate the pride of ownership and attention to detail throughout. Offering 4 bedrooms and 2 full baths, this inviting home features comfortable living spaces designed to capture the beauty of waterfront living. The stunning kitchen boasts quartz countertops, an abundance of cabinetry, and wonderful space for gathering and entertaining. Enjoy the comfort of in-floor heating, making this home cozy and efficient year-round. Step outside and experience true waterfront enjoyment with your own dock plus a large waterside party dock perfect for lakeside entertaining, relaxing, or taking in the peaceful water views. A charming gravel pathway leads you to and from the waterfront, adding to the property's natural beauty and easy accessibility. Whether you’re searching for a full-time residence, seasonal retreat, or the perfect place to entertain family and friends, this exceptional Wellesley Island property offers the best of waterfront living! Call, click, or text today for an appointment to see.

Beds:
2
Baths:
1.00
Sq.Ft.:
696
Status:
Active
MLS#:
S1649455
Type:
Other
Subdivision:
Crestview Acres Assoc.
Lot size:
0.14 Acres
Year built:
1955
A broker reciprocity listing Courtesy: Bridgeview Real Estate 315-782-9292
View additional info

ADDITIONAL INFORMATION

ADORABLE WELLESLEY ISLAND COTTAGE OFFERING MAGNIFICENT RIVERVIEWS AND A DOCK SLIP! Welcome to this 696 square foot cottage offering magnificent views of the St. Lawrence River’s main shipping channel on beautiful and vehicle accessible Wellesley Island. Nestled in the Crestview Acres Association, this charming property is perfectly positioned not far from the shoreline and offers access to the water, providing that true Thousand Islands waterfront experience without the high waterfront taxes! This cute-as-a-button retreat features 2 bedrooms, 1 full bath, and an open-concept kitchen, living, and dining area — all designed to showcase those stunning river views. But chances are, you’ll spend most of your time outdoors! A spacious deck spans the length of the cottage, creating the ideal setting for morning coffee, evening cocktails, and countless memories with family and friends. Enjoy your own 24' dock slip plus access to a large community dock, offering direct access to the main channel — perfect for boating, fishing, and exploring the islands. Under the cottage, a fenced-in storage area and crawl space provides easy access to the utilities, plus secure space for kayaks, outdoor gear, and seasonal items. Located just a short boat ride or drive to Alexandria Bay and Clayton, and close to golf courses, restaurants, and endless recreation opportunities, this location places you in the heart of the Thousand Islands lifestyle. Whether you’re seeking peaceful relaxation or summer adventure, this cottage delivers it all. Purchase this cottage now and close in time to enjoy your very first Thousand Islands summer! Call today to schedule your private showing!

Beds:
4
Baths:
3.00
Sq.Ft.:
1,680
Status:
Active
MLS#:
S1602756
Type:
Other
Lot size:
0.98 Acres
Year built:
2013
A broker reciprocity listing Courtesy: Garlock Realty 315-482-6000
View additional info

ADDITIONAL INFORMATION

Lovely 4-bedroom, 3-bath year round home built in 2013. The home features open floor plan, spacious kitchen, 9 ft ceilings in the finished walkout basement, 2 stall garage w/ workshop area and wrap around porches for cookouts and gatherings. Also includes protected deep water dockage for boats and swimming. Sunsets and summer await you at this ideal rive location. Call now for showing & details.

Beds:
3
Baths:
1.00
Sq.Ft.:
400
Status:
Active
MLS#:
S1597175
Type:
Single Family
Lot size:
0.04 Acres
Year built:
2019
A broker reciprocity listing Courtesy: Garlock Realty 315-482-6000
View additional info

ADDITIONAL INFORMATION

Don’t miss this one-of-a-kind newly built 3 BR/2-story island cottage located in the Lake of the Isles on the St. Lawrence River. Very well insulated including the floors, fully screened-in porch with wonderful views. All double-pane windows and propane fireplace for winter use. Although this island is boat access only, it can be used in the winter months. Propane/electric refrigerator, compost toilet, Honda 3000 generator, deep-water dockage with 3 floating docks. Beautifully decorated.Listing agent will supply rides to the island. Must see!

Beds:
10
Baths:
10.00
Sq.Ft.:
8,555
Status:
Active
MLS#:
S1542674
Type:
Other
Lot size:
2.29 Acres
Year built:
1890
A broker reciprocity listing Courtesy: Garlock Realty 315-482-6000
View additional info

ADDITIONAL INFORMATION

The serene crown jewel Historic Hart house located on Wellesley Island that is currently used as a bed & breakfast. The property features 10 guest rooms with private baths, fireplaces, a family suite, completely remolded family room with wood beam ceilings and moldings, commercial kitchen and beautiful dining area that seats 60 overlooking the golf course. This property is ideal for weddings, receptions or ideal for summer retreats. Owners have taken great care & pride in bringing back the Hart House. This property is located with views of the river and the Thousand Island Golf course and has plenty of marinas within walking distance for your boats. Call now for private showing.

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Andrea D. Conner, License 10311208085, Xome Inc., License 10991227159, [email protected], 844-400-XOME (9663), 750 Highway 121 Bypass, Suite 100, Lewisville, Texas 75067


The data relating to real estate on this web site comes in part from the Internet Data Exchange (IDX) Program of the New York State Alliance of MLSs (CNYIS, UNYREIS and WNYREIS). Real estate listings held by firms other than Xome are marked with the IDX logo and detailed information about them includes the Listing Broker’s Firm Name. All information deemed reliable but not guaranteed and should be independently verified. All properties are subject to prior sale, change or withdrawal. Neither the listing broker(s) nor Xome shall be responsible for any typographical errors, misinformation, misprints, and shall be held totally harmless. Per New York legal requirement, click here for the Standard Operating Procedures. Copyright © 2026 CNYIS, UNYREIS, WNYREIS. All rights reserved.



Wellesley Island Real Estate

Wellesley Island is located in New York. Wellesley Island, New York has a population of 394. Wellesley Island is less family-centric than the surrounding county with 0% of the households containing married families with children. The county average for households married with children is 31.71%.

The median household income in Wellesley Island, New York is $70,139. The median household income for the surrounding county is $58,271 compared to the national median of $69,021. The median age of people living in Wellesley Island is 67 years.

Wellesley Island Weather

The average high temperature in July is 79.9 degrees, with an average low temperature in January of 7.8 degrees. The average rainfall is approximately 38.7 inches per year, with 98.8 inches of snow per year.

Wellesley Island Map

Wellesley Island Real Estate Market Conditions

  • Median sales price

    $630,000
    11.4%
    change since last quarter
  • # Active listings

    17
    30-day change

Wellesley Island Schools and Demographics

Education near Wellesley Island, NY

City County
High School Graduates 96.6 91.17
College Degree - 2 year 6.31 12.69
College Degree - 4 year 54.37 24.32
Graduate Degree 19.9 8.06
Expenditures per Student 21,632 21,632
Students per Teacher 12.6 12.6

Elementary Schools near Wellesley Island, NY

Grades Students P/T Ratio ZIP
Alexandria Central Elementary School PK - 06 314 12.1 13607
Guardino Elementary School KG - 05 309 11.9 13624
Theresa Primary School PK - 03 222 15.9 13691

Middle Schools near Wellesley Island, NY

Grades Students P/T Ratio ZIP
Thousand Islands Middle School 06 - 08 223 20.6 13624

High Schools near Wellesley Island, NY

Grades Students P/T Ratio ZIP
Alexandria Central High School 07 - 12 259 12.9 13607
Thousand Islands High School 08 - 12 342 15.7 13624

Ungraded Schools near Wellesley Island, NY

Grades Students P/T Ratio ZIP
La Fargeville Central School PK - 12 551 13.1 13656

Demographics near Wellesley Island, NY

City County
Neighborhood Type Small town
Population 394 117,634
Population Density 32 93
Median Age 67 32.9
People per Household 1.8 2.5
Median Household Income 70,139 58,271
Average Income per Capita 39,594 29,892

Real estate near Wellesley Island