230 Big Barndoor Island Alton, NH $ 1,470,000
230 Big Barndoor Island
$ 1,470,000
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230 Big Barndoor Island

Alton, NH, 03810
$ 1,470,000
Bedrooms3 Baths2.0 Sq 1,536

Monthly Estimate*

$ 9,282

Listed by Adam Dow, KW Coastal and Lakes & Mountains Realty/Wolfeboro, 866-525-3946, adam@thedowgroup.com
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Single Family Home for sale in Alton, NH

for $1,470,000 with 3 bedrooms and 2 full baths. This 1,536 square foot home was built in 1970 on a lot size of 0.79.

Welcome to Loon Squire, a beautifully renovated waterfront retreat at 230 Big Barndoor Island on the crystal-clear waters of Lake Winnipesaukee. Thoughtfully updated while maintaining its classic lakeside charm, this inviting island home is ready to enjoy from day one. Recent improvements include 3 bedrooms and 2 brand new bathrooms, along with a stunning custom-designed kitchen that serves as the heart of the home. Enjoy breathtaking views of downtown Wolfeboro and front-row seats to the spectacular 4th of July fireworks, all while being just a quick, five-minute boat ride from the Wolfeboro town docks.. Modern conveniences have been added, such as in-home laundry, energy-efficient mini-splits providing both heating and air conditioning, and a cozy wood-burning fireplace create comfort throughout the seasons, making this a getaway you'll enjoy well into the fall. Step onto the screened porch directly off the kitchen, the perfect spot for morning coffee or evening dinners overlooking the lake. The adjoining expansive deck offers panoramic water views and overlooks the property's impressive U-shaped dock, providing docking for up to three boats and making days on Lake Winnipesaukee effortless. Outside, a flat and level lot offers exceptional usable waterfront space, dotted with natural blueberry bushes and complete with a sandy perched beach, room for lawn games, family gatherings, and memorable evenings around the campfire. You will also appreciate the home's direct access to Big Barndoor Island's walking trails, providing a peaceful way to explore the island's scenic beauty. Whether you're seeking a peaceful escape, a place to entertain generations of family and friends, or the quintessential Lake Winnipesaukee island experience, Loon Squire delivers the perfect combination of updates, exceptional waterfront overlooking downtown Wolfeboro, and ideal Lake Winni island living. Multiple mainland docking options available in Wolfeboro for additional consideration.

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Single Family Active

Price

$ 1,470,000

Bedrooms

3

Full Bath

2

Property Type

Single Family

Taxes

$ 0

Style

Gambrel

Lot Size

0.79

Year Built

1970

Town/City

Alton

County/Region

Belknap

MLS | Web ID

5100735

Features
Interior
Interior Amenities Wood Fireplace 1 Fireplace Kitchen/Dining Kitchen/Family Primary BR w/ BA Natural Light Natural Woodwork 1st Floor Laundry
Basement No
Flooring Wood Vinyl Plank
Beds 3
Total Rooms 6
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General
Road Frontage No
Sewer 1000 Gallon On-Site Septic Exists Plastic
Heating Mini Split
Cooling Mini Split
Utilities Other
Roof Architectural Shingle
Appliances Dishwasher Dryer Microwave Refrigerator Washer Electric Stove Electric Water Heater Induction Cooktop
Garage No
Flood Zone Unknown
Zoning LR-LAKESHORE RES
3/4 Baths 2
Full Baths 0
Half Baths 0
Bathrooms 2
Year Built 1970
Electric 200+ Amp Service
Style Gambrel
Stories Count 2
Construction Status Existing
Type Single Family
Block 000
Auction No
Tax Year 2025
Status Detail 0
Covenants Unknown
Construction Materials Post and Beam Wood Frame Cedar Exterior T1-11 Exterior
City Alton
Seasonal Yes
DOM 2
Price Per Sq Ft Total AG 957.03
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Exterior
Lot Features Lake Access Lake Frontage Level Waterfront Island
Exterior Amenities Boat Slip/Dock Deck Enclosed Porch Private Dock
Driveway None
Lot Size Area 0.79
Water Source Lake/Pond
Water Body Name Lake Winnipesaukee
Foundation Post/Piers
Lot 10
Waterfront Property Yes
Water Body Type Lake
Water Body Access Yes
Water Access Details Directly Adjoining
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* Excluded Features
List By
Adam Dow

Listing Agent

Kw Coastal And Lakes & Mountains Realty/Wolfeboro

Broker

(866) 525-3946

Phone

adam@thedowgroup.com

Email

Affordability Calculator

$9,282
Per Month
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Monthly Principal & Interest
$9,282
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Default based on a 30-year fixed rate of 6.49% with 20% down. The estimated payment is offered for convenience and is not an offer of credit. Due to market fluctuations, interest rates are subject to change at any time and without notice. Your individual rate may vary. Rates may differ for FHA, VA or jumbo loans.
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Nearby
451920 Elementary School
452237 Middle School
Unknown High School High School
Pricing History
DatePricePrice ChangeDescription
7/20/2026$1,420,000 Listed Price

Map


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230 Big Barndoor Island, Alton, NH, 03810 is a Single Family Home for sale at $1,470,000 with 1,536 sqft and a lot size of 0.79. 230 Big Barndoor Island has 3 bedrooms, 2.0 baths, and was built in 1970. The property's zip code is 03810 which is in Alton, NH