Single Family Residence at 286 Rattlesnake Island, Alton
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$1,699,000

Under contract
286 Rattlesnake Island
Alton, NH 03810
Listed by Becky Fuller · Four Seasons Sotheby's Int'l Realty
Bedrooms
5
Bathrooms
0.5
Living area
N/A
Year built
2007

About this home

Set along approx. 187 ft of Winnipesaukee shoreline, this exceptional island compound offers a rare blend of luxury, privacy, and authentic lakefront charm. Built in 2007 with extraordinary attention to detail, the main residence is a masterful expression of lake-inspired architecture. The dramatic great room serves as the centerpiece, featuring a towering stone fireplace, soaring vaulted ceilings, and an impressive wall of glass that frames panoramic westerly views. Rich wood finishes and artisan craftsmanship create an atmosphere that is both grand and inviting. The primary bedroom on the main level known as the "Tree Suite," offers a peaceful retreat. Upstairs, three charming guest bedrooms—the "Bear Room," "Wolf Room," and "Moose Room"—provide comfortable accommodations for family and guests, accompanied by a shared bath designed to serve the upper level. For state of mind, a 3-bedroom state-approved septic was installed in 2007. Just steps from the waterfront, is a treasured lakeside guest cottage, where the timeless character of classic Winnipesaukee summers remains beautifully preserved. This cottage features a spacious living room, eat-in kitchen, and two guest rooms. The waterfront experience is equally impressive, featuring a sandy beach and substantial U-shaped dock with walk-down steps into the lake. Sunsets are breathtaking. Island trails are accessible directly from the property, offering opportunities to explore the natural beauty that makes island living so special. An additional dock slip close-by in protected, Youngs Cove provides additional boat parking. Mainland access at "The Landing" provides car parking, boat launch and dock use for owners and guests. Available for separate purchase: 25' boat slip in Minge Cove. Rarely does an island property combine such exceptional craftsmanship, generous accommodations, docking options, and classic Lake Winnipesaukee character. This is a legacy offering designed to be enjoyed for generations to come.

Highlights

Waterfront

Property details

MLS
Prime MLS
MLS #
5094720
Property type
Single Family Residence
Subdivision
N/A
Status
Under contract
Days on market
35
On market date
N/A
Stories
N/A
Total bathrooms
0.5
Garage spaces
N/A
Parking spaces
N/A
Lot size
1.04 acres
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Nearby schools

Within 10 miles. School directory data from the National Center for Education Statistics (NCES), accessed via the Urban Institute Education Data API. Local Score is calculated by INNOVATE Real Estate; where a state rating is shown, it comes from that state's own official school report card.

Elementary
Carpenter Elementary School
4.47 mi away · Grades 0-3
Nearest school -- attendance-zone data not available here
5.0
Local Score (student-teacher ratio only (preliminary -- will incorporate state test-score data once available)) -- not an official state rating
Enrollment
200
Student:teacher ratio
8.7:1
District
Governor Wentworth Reg School District
Middle
Kingswood Regional Middle School
5.35 mi away · Grades 7-8
Nearest school -- attendance-zone data not available here
5.0
Local Score (student-teacher ratio only (preliminary -- will incorporate state test-score data once available)) -- not an official state rating
Enrollment
375
Student:teacher ratio
10.4:1
District
Governor Wentworth Reg School District
High
Kingswood Regional High School
5.29 mi away · Grades 9-12
Nearest school -- attendance-zone data not available here
5.0
Local Score (student-teacher ratio only (preliminary -- will incorporate state test-score data once available)) -- not an official state rating
Enrollment
728
Student:teacher ratio
11.6:1
District
Governor Wentworth Reg School District

Walkability

Blended score for Alton's center, calculated by INNOVATE Real Estate from two sources: the EPA's National Walkability Index (street network, transit, land-use mix) and Google Places amenity data (what's actually reachable on foot from this point). 60% EPA National Walkability Index + 40% nearby-amenity density (Google Places).

22
Car-dependent
out of 100
EPA National Walkability Index
5.8 / 20 -- Below average walkable
Google Places amenity density
10 / 100
Restaurants & cafes0
Grocery stores0
Parks2
Schools0
Transit stops0
Pharmacies0

Market position

How this listing compares to current activity in Alton, from live MLS data.

On the market 35 days -- 74 fewer days than Alton's current average of 109 days.
For reference, the median list price across 104 active listings in Alton right now is $599,000.

Mortgage calculator

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Est. monthly payment
$10,382/mo
$339,800 down
$1,359,200 loan
Principal & interest$8,816
Property tax (est.)$1,416
Home insurance (est.)$150

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Copyright 2026 PrimeMLS. All rights reserved. This information is deemed reliable, but not guaranteed. The data relating to real estate displayed on this Site comes in part from the IDX Program of PrimeMLS. The information being provided is 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. Data last updated 08/05/26.