230 Big Barndoor Island Alton, NH $ 1,390,000
230 Big Barndoor Island
$ 1,390,000
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230 Big Barndoor Island

Alton, NH, 03810
$ 1,390,000
Bedrooms3 Baths2.0 Sq 1,536

Monthly Estimate*

$ 8,777

Listed by Adam Dow, KW Coastal and Lakes & Mountains Realty/Wolfeboro, 866-525-3946, adam@thedowgroup.com
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View a Virtual Tour

Single Family Home for sale in Alton, NH

for $1,390,000 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, an exceptional island retreat on Lake Winnipesaukee offering the perfect balance of peaceful solitude and downtown Wolfeboro convenience. Just five minutes after casting off from the town docks, you’ll arrive at this luxuriously renovated gambrel-style home, where island living meets effortless accessibility to local dining, shopping, and entertainment. Thoughtfully redesigned from top to bottom, the warm interior blends classic lake house charm with modern refinement. Post-and-beam construction framing solid pine tongue-and-groove paneling creates an inviting atmosphere, centered around a cozy stone wood-burning fireplace for summer evenings or crisp autumn days. The spacious custom kitchen flows seamlessly toward an expansive front deck and screened porch. Two main-floor bedrooms feature natural light, ample closets, and an updated bath with a tiled shower. Beautiful hickory railings guide you upstairs to the expansive loft and the primary suite, complete with soaring pine ceilings, sweeping lake views, and an ensuite bath featuring a custom hickory vanity and custom tile work. Outside, the level front lawn offers an idyllic backdrop for gatherings and lawn games. Step onto the solid crib dock, with space for three boats, or relax on the perched beach with your toes in the water. Wild blueberry bushes dot the hundred feet of shoreline, which is situated on the calm side of Barndoor Island. From summer days spent exploring interior island walking trails and neighboring islands by paddleboard, to watching the 4th of July Wolfeboro fireworks directly from your dock, Loon Squire delivers a classic lake experience. Additional features: mini-split heating and a/c units, brand-new kitchen appliances and custom cabinetry, perched beach, and deep-water space for multiple craft, fiberoptic high speed internet. Seller is offering an opportunity to purchase mainland docking in Wolfeboro separately. Seller willing to include 5 hours of barge services!

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Single Family Contingent

Price

$ 1,390,000

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
Type Single Family
Block 000
Property Condition Existing
Tax Year 2025
Status Detail 1
Covenants Unknown
Construction Materials Post and Beam Wood Frame Cedar Exterior T1-11 Exterior
City Alton
Seasonal Yes
DOM 30
Price Per Sq Ft Total AG 904.95
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Exterior
Lot Features Level 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

$8,777
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Monthly Principal & Interest
$8,777
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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
8/6/2026$1,390,000 -2.11% Price Down
7/20/2026$1,420,000 Listed Price

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230 Big Barndoor Island, Alton, NH, 03810 is a Single Family Home for sale at $1,390,000 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