OFF MARKET

Listed by Nancy DePorter • KW Coastal and Lakes & Mountains Realty/Wolfeboro. Bought with KW Coastal and Lakes & Mountains Realty/Wolfeboro.

Off Market May 2018 for $425K

$819,242

•

919

sq ft

22 Rattlesnake Island Is, Alton Bay, NH 03810

About this home

This one plus bedroom post and beam home perched atop a bluff has fantastic views of the Lake and Mountains. Watch the sunset from either your waterside or house side decks. Large breakwater and dock for your boats. Protected, sandy swim area. Open concept with cathedral ceiling in living room area. Bedroom and loft area are on the second floor. Lots of floor to ceiling windows to let in the views and the light. There is a separate shed and an additional woodshed. Rattlesnake Island is an association island with fantastic mainland amenities including boat ramp and parking. The views at the top of the island are unreal and the trails are well marked. This property has easy access to the fantastic hiking trails. There is currently a lot line adjustment being done and the frontage will be at 154' after this adjustment has been completed. The Buyer will also have the option to purchase the Seller's boatslip at Minge Cove Marina for additional monies. The lot next to this is also available for purchase see MLS 4653625

Single-familyProperty Type

1983Year Built

0.98 acresLot Size

$891Est. Price/Sq.Ft.

Listed by Nancy DePorter • KW Coastal and Lakes & Mountains Realty/Wolfeboro

Bought with Nancy DePorter • KW Coastal and Lakes & Mountains Realty/Wolfeboro

Redfin checked: a minute ago

•Source:PrimeMLS #4695792

Redfin Estimate

$819,242

$394K since sold in May 2018$56K since August

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 41.2% higher than the average sale price ($580K) of 6 comparable homes.

SOLD AUG 14, 2026
$645,000
A
2 beds2 baths884 sq ft
4 Diamond Is, Gilford, NH 03249
SOLD JUN 12, 2026
$700,000
B
3 beds1 bath694 sq ft
178 Rattlesnake Is, Alton Bay, NH 03810
SOLD AUG 6, 2026
$600,000
C
2 beds1 bath1,147 sq ft
23 Cow Is, Center Tuftonboro, NH 03816
SOLD SEP 29, 2025
$407,000
D
2 beds1 bath1,420 sq ft
18 Bachelor Dr, Alton Bay, NH 03810
SOLD JAN 7, 2026
$645,500
E
2 beds1 bath1,478 sq ft
214 Sagamore Rd, Gilford, NH 03249
SOLD JUN 10, 2026
$482,900
F
3 beds1.5 baths1,662 sq ft
24 Jay Dr, Gilford, NH 03249

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Earn from this home

Sell

$488,133

Est. take-home

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Rent

$2,327/mo

Redfin rental estimate

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Market trends in 03810, NH

Last updated August 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

99.4%

+1.7% MoM

Median sale price

$575K

$25K MoM

Avg. days on market

29d

0 days MoM

Recently sold homes

2 MoM

New listings for sale

$985,000
4 beds3 baths3,223 sq ft
106 Lakewood Dr, Alton Bay, NH 03810
$1,249,000
3 beds2 baths2,307 sq ft
548 Rattlesnake Is, Alton Bay, NH 03810
$3,800,000
3 beds3.5 baths3,235 sq ft
90 Minge Cove Rd, Alton Bay, NH 03810
$1,150,000
3 beds3 baths3,759 sq ft
77 Riverlake St, Alton Bay, NH 03810
$398,000
2 beds1 bath1,186 sq ft
7 Scott Dr, Alton Bay, NH 03810
$1,750,000
4 beds3.5 baths3,225 sq ft
1341 Cherry Valley Rd, Gilford, NH 03249
$1,359,000
2 beds1 bath1,218 sq ft
85 Rollins Rd, Alton, NH 03810
VIDEO TOUR
$2,500,000
4 beds3.5 baths4,816 sq ft
141 Lakewood Dr, Alton Bay, NH 03810
$599,000
4 beds3 baths2,717 sq ft
17 Frohock Brook Rd, Alton Bay, NH 03810
See all

Provided by Redfin

Sale history for 22 Rattlesnake Island Is

Year

Property tax

Land + Additions

Assessment*

2024

$6,741 (−1.5%)

$376,200 + $143,100

$519,300

2022

$6,844 (−3.7%)

$376,200 + $143,100

$519,300

2021

$7,109 (+34.0%)

$481,600 + $143,100

$624,700

2020

$5,304 (+11.5%)

$248,200 + $132,000

$380,200

2019

$4,756 (−10.8%)

$248,200 + $132,000

$380,200

2018

$5,333 (+8.8%)

$248,200 + $133,000

$381,200

2017

$4,902 (−6.1%)

$248,200 + $133,000

$381,200

2016

$5,221 (−0.9%)

$242,000 + $127,000

$369,000

2015

$5,266 (+5.0%)

$242,000 + $127,000

$369,000

2013

$5,013

$255,500 + $117,500

$373,000

Tax history for 22 Rattlesnake Island Is

Year

Property tax

Land + Additions

Assessment*

2024

$6,741 (−1.5%)

$376,200 + $143,100

$519,300

2022

$6,844 (−3.7%)

$376,200 + $143,100

$519,300

2021

$7,109 (+34.0%)

$481,600 + $143,100

$624,700

2020

$5,304 (+11.5%)

$248,200 + $132,000

$380,200

2019

$4,756 (−10.8%)

$248,200 + $132,000

$380,200

2018

$5,333 (+8.8%)

$248,200 + $133,000

$381,200

2017

$4,902 (−6.1%)

$248,200 + $133,000

$381,200

2016

$5,221 (−0.9%)

$242,000 + $127,000

$369,000

2015

$5,266 (+5.0%)

$242,000 + $127,000

$369,000

2013

$5,013

$255,500 + $117,500

$373,000

*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.

Public record

Beds

Baths

Stories

Lot width

—

Lot depth

—

Lot size

0.99 Acres

Year renovated

—

Sq. Ft.

941

Year built

1983

Style

Single Family Residential

County

Belknap County

APN

729191

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Sep 10, 2025.

Property details

Interior

Bathroom Information
# of Baths (full): 1

Other Interior Features
# of Rooms: 3
Flooring: Carpet, Hardwood, Vinyl
Water Heater: Electric, Free Standing, Owned
Cathedral Ceiling, Natural Woodwork, Skylight

Equipment & Appliance Information
Dryer, Range - Electric, Washer

Exterior

Building Information
Construction Status: Existing
Approximate Sq. Ft. Total Finished: 919
Approximate Sq. Ft. Total: 919
Boat Launch, Boat Slip/Dock, Deck, Private Dock, Shed
Construction: Post and Beam
Foundation: Post/Piers
Roof: Shingle - Wood
Exterior: Board and Batten

Lot, Zoning, & Easement Information
Lot: 55
Lake Frontage, Level, Mountain View, Steep, View, Walking Trails, Waterfront, Wooded

Survey Information
Surveyed: Unknown

Other Property & Lot Information
Year Built: 1983
Waterfront: Yes
Water Body Access: Yes

Financial

Tax Information
Tax Year: 2016
Gross Amount Tax: 5222

Other Tax Information
Page Deed: 784

Utilities

Heating & Cooling Information
Heat: Electric, Stove - Wood
Heat Fuel: Electric, Wood

Sewer Information
750 Gallon, Concrete, Leach Field, Leach Field - Mound, On-Site Septic Exists, Pump Up

Electric Information
150 Amp, Circuit Breaker(s)

Water Information
Other
Water Frontage Length: 154

Location

Road Information
None

Other Location Information
Directions: Northern end of the island
Block: 0

Public facts

Beds: 2
Baths: 1.0
Sq. Ft.: 941
Stories: 2.0
Lot Size: 0.99 acres
Style: Single Family Residential
Year Built: 1983
Year Renovated: —
County: Belknap County
APN: 729191

Home facts updated by county records on Sep 10, 2025

Other

Water Body Information
Lake
Name: Winnipesaukee
Access: Owned

Misc. Information
Seasonal: Yes

Around this home

Schools

Alton Central School

Public PreK-8 • Assigned • 9.4mi

5/10

Prospect Mountain High School

Public 9-12 • Assigned • 10.4mi

4/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Historical weather

Alton Bay, NH • 03810

Average low and high temperatures (°F)

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Sun exposure

In this area, properties receive around 8.6 hours in June and 3.9 hours in December, placing it below the U.S. average for solar exposure.

8.6 hrs

3.9 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$779,000 – $943,000

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Home values near 22 Rattlesnake Island Is

Data from public records.

Address	Redfin Estimate
34 Rattlesnake Island, Alton Bay, NH 2 Beds \| 1.5 Baths \| 1711 Sq. Ft.	$808,364
1008 Rattlesnake Island, Alton Bay, NH 3 Beds \| 1 Baths \| 1216 Sq. Ft.	$838,658

Address	Redfin Estimate
44 Rattlesnake Island, Alton Bay, NH 3 Beds \| 2 Baths \| 1663 Sq. Ft.	$671,996
62 Rattlesnake Island, Alton Bay, NH 3 Beds \| 1 Baths \| 1257 Sq. Ft.	$602,943

Address	Redfin Estimate
80 Rattlesnake Island, Alton Bay, NH 3 Beds \| 2.5 Baths \| 1767 Sq. Ft.	$921,046
10 Rattlesnake Island, Alton Bay, NH 3 Beds \| 1.5 Baths \| 1659 Sq. Ft.	$651,910

Property information provided by PrimeMLS when last listed in 2018. This data may not match . Learn more.

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About this home

Redfin Estimate

Earn from this home

Market trends in 03810, NH

Sale history for 22 Rattlesnake Island Is

Tax history for 22 Rattlesnake Island Is

Public record

Property details

Around this home

Schools

Lifestyle

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 03810

Home values near 22 Rattlesnake Island Is

More real estate resources