Listed by Maxfield Real Estate/Wolfeboro · Jen McCullough · 603-569-3128

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Single Family Residence · Alton, NH

ActiveFor SalePrice Reduced

878 Rattlesnake Island, Alton, NH

$699,000

$749,000 · changed Aug 18, 2026

Est. $3,535/mo · 20% down, 30-yr, 6.5% (Owl’s Nest Real Estate estimate, not MLS data)

Beds
3
Baths
1
Sq Ft
1,248
Built
1980
MLS®
#5086386

Property Description

878 Rattlesnake Island, Alton is a single-family home for sale in New Hampshire at $699,000. The property offers 3 bedrooms, 1 bathroom and 1,248 square feet of living space. Single-family ownership here means your own land, your own walls and room to make the property yours. The numbers worth knowing: a 0.66-acre lot, 1980 construction and roughly $560 per square foot. Scroll on for current photos, the complete spec sheet and this Alton listing's market context. Browse more homes for sale in Alton.

Spectacular 180-degree views from north to south await at this meticulously maintained property on Rattlesnake Island, set along the shores of Lake Winnipesaukee. This three bedroom, open-concept, post-and-beam cottage features beautiful pine floors and is filled with natural light from a wall of sliders that seamlessly brings the outdoors in. Step outside to enjoy two spacious decks, one perfectly positioned for sun, the other offering a shaded retreat. The expansive breakwater provides protection from prevailing winds, along with docking for two boats, and leads to a gorgeous sandy swimming area with custom steps into crystal-clear water. The property also offers direct access to the island’s interior trail system right from your back door. As a member of the Rattlesnake Island community, you’ll enjoy shared ownership of a mainland parcel that includes four parking spaces per lot, transient docking for loading and unloading, and a convenient boat ramp. Start making lasting memories on the lake this summer.

Location Highlights

878 Rattlesnake Island is a single family residence in Alton, New Hampshire, listed at $699,000. That works out to about $560 per square foot, for a home built in 1980. It has been on the market for 6 months.

From here it is 23.4 miles to Downtown Plymouth / Main Street and 27.4 miles to Owl's Nest Resort. At this latitude, Alton averages roughly 8.4 hours of sun a day in June and 3.6 in December.

Zoned schools in the Alton School District SAU #72: Alton Central School (Elementary), Alton Central School (Middle), ProspectMo (High). Always confirm zoning with the district office.

Source: zoned school names are PrimeMLS listing data; distances, sun exposure and school facts are Owl’s Nest Real Estate additions (school facts from the NCES, U.S. Department of Education) — not PrimeMLS data.

Property Details

Essentials & finishes

Bedrooms
3
Total Baths
1
Full Baths
1
SqFt
1,248
Price / SqFt
$560.10
Property Type
Single Family Residence
Year Built
1980
County
NH-Belknap
Town
Alton, NH
Status
Active
Days on Market
173

Primary Features

County
NH-Belknap
Property Type
Residential
Year Built
1980
Zoning
LR-LAK

Interior Features

Appliances
Dryer, Microwave, Electric Range, Refrigerator, Washer
Basement
No
1/4 Baths
0
3/4 Baths
0
Cooling
None
Electric
100 Amp Service
Flooring
Wood
Heating
Wood Stove
Rooms - Total
7
SqFt-Approximate Finished Above Grade
1,248
SqFt-Approximate Finished Below Grade
0
SqFt Approximate Total Finished
1,248
SqFt Approximate Total
1,344

Location Information

School - District
Alton School District SAU #72
School - Elementary
Alton Central School
School - High
ProspectMo
School - Middle/Jr
Alton Central School

Financial Details

Association Fee
$180
Fee Frequency
Yearly
Tax - Gross Amount
$6,201
Tax Year
2024
Taxes TBD
No

Additional

Construction Status
Existing
Construction
Vinyl Siding
Covenants
Yes
Flood Zone
Unknown
Pre-Construction
No
Property Sub Type
Single Family Residence
Seasonal
Yes
Total Stories
1.75
Surveyed
Unknown
Timeshare/Fractional Ownership
No
Water Access Details
Beach Access, Deep Water Access, Directly Adjoining

External Features

Color
Tan
Driveway
None
Exterior Features
Boat Slip, Deck, Dock, Covered Porch, Private Dock
Foundation
Post/Piers
Garage
No
Lot Features
Mountain View, Trail/Near Trail, Views, Island, Near Paths
Lot - Acres
0.66
Lot - SqFt
28,750
Road Frontage Type
None
Road Frontage
No
Roof
Metal
Sewer
Leach Field On-Site, On-Site Septic Exists
Utilities
Cable Available
Water Source
Other
Water Body Type
Lake

MLS®: PrimeMLS #5086386; Listed by Maxfield Real Estate/Wolfeboro · Jen McCullough · 603-569-3128

Market Data

Live snapshot computed by Owl’s Nest Real Estate from PrimeMLS IDX active listings in this town

Active listings in Alton
93
Average list price
$635,825
Price range
$265,000 – $1,199,000

Mortgage Calculator

Estimate your monthly payment for this home

Loan Term

Estimated Monthly Payment

$4,197/ mo

Principal & Interest
$3,535
Property Tax
$517
Home Insurance
$146

Property tax: this home’s 2024 annual tax bill of $6,201, per PrimeMLS. The rest is an Owl’s Nest Real Estate estimate: insurance at 0.25% of home value/yr and PMI below 20% down. A sale can trigger a reassessment; confirm with the town assessor and your lender.

Around This Property

Schools, everyday places and nearby destinations near 878 Rattlesnake Island, Alton, NH

Assigned Schools

Elementary
Alton Central School
Middle
Alton Central School
High School
ProspectMo
District
Alton School District SAU #72

Source: Google Maps Platform (Places) and Owl’s Nest Real Estate — not PrimeMLS data.

Questions About This Listing

How big is 878 Rattlesnake Island?

878 Rattlesnake Island in Alton, NH has 3 bedrooms and 1 bathroom in 1,248 square feet of finished living space.

What is the asking price of 878 Rattlesnake Island?

878 Rattlesnake Island in Alton, NH is listed for $699,000 on PrimeMLS.

That is about $560 per square foot of finished living space.

It came on the market on May 1, 2026.

Is 878 Rattlesnake Island on the water?

Yes. The MLS lists 878 Rattlesnake Island in Alton, NH as a waterfront property on a lake.

Water access: beach access, deep water access and directly adjoining.

The MLS lists a dock and private dock.

The MLS also notes mountain view.

Confirm frontage, shoreland rules and any dock or beach rights during due diligence.

What schools serve 878 Rattlesnake Island?

The MLS places 878 Rattlesnake Island in Alton, NH in the Alton School District SAU #72.

Listed schools: Alton Central School (elementary), Alton Central School (middle) and ProspectMo (high).

School assignments can change; confirm with the district.

Is 878 Rattlesnake Island still available?

Yes. 878 Rattlesnake Island in Alton, NH is listed as Active on PrimeMLS (MLS #5086386).

Status can change quickly; contact us to confirm availability before you visit.

Who is the listing agent for 878 Rattlesnake Island?

878 Rattlesnake Island in Alton, NH is listed by Jen McCullough of Maxfield Real Estate/Wolfeboro (603-569-3128).

Owl's Nest Real Estate shows it through the PrimeMLS IDX feed; we are not the listing brokerage.

What kind of property is 878 Rattlesnake Island?

878 Rattlesnake Island in Alton, NH is a single-family home built in 1980.

The MLS lists its style as Saltbox, with 1.75 stories.

The MLS marks it as a seasonal property, so check year-round access and systems.

Where is 878 Rattlesnake Island located?

878 Rattlesnake Island is in Alton, New Hampshire 03810, in Belknap County.

Location notes from the MLS: trail/near trail and near paths.

Our Lake Winnipesaukee guide covers Alton and the surrounding towns.

How much land comes with 878 Rattlesnake Island?

878 Rattlesnake Island in Alton, NH sits on 0.66 acres, per the MLS.

The lot is described as island.

Zoning: LR-LAK.

The MLS notes covenants; review them in the deed and title work.

How much are the property taxes on 878 Rattlesnake Island?

Annual property taxes on 878 Rattlesnake Island in Alton, NH are $6,201 for the 2024 tax year, per the MLS.

New Hampshire towns set their own tax rates and revalue periodically, so confirm the current bill with the Alton assessing office.

Is there an HOA fee at 878 Rattlesnake Island?

The association fee for 878 Rattlesnake Island in Alton, NH is $180 (yearly), per the MLS.

Ask for the association documents and budget to see exactly what the fee covers.

How is 878 Rattlesnake Island heated?

878 Rattlesnake Island in Alton, NH is heated by wood stove, per the MLS.

The MLS lists no cooling system.

Does 878 Rattlesnake Island have town water and sewer?

878 Rattlesnake Island in Alton, NH has a private septic system, per the MLS.

MLS details — sewer: leach field on-site and on-site septic exists.

Electric: 100 amp service.

Other utilities: cable available.

Plan a water test and septic inspection during your inspection period.

Is there a basement at 878 Rattlesnake Island?

No. The MLS lists no basement at 878 Rattlesnake Island in Alton, NH.

What features does 878 Rattlesnake Island have?

Outside, the MLS lists these features at 878 Rattlesnake Island in Alton, NH: boat slip, deck, dock, covered porch and private dock.

Flooring: wood.

Listed appliances: dryer, microwave, electric range, refrigerator and washer; confirm which ones convey in the purchase agreement.

How does the price of 878 Rattlesnake Island compare with other Alton listings?

At $699,000, 878 Rattlesnake Island in Alton, NH is priced below the $799,900 median asking price of the 45 single-family homes for sale in Alton on PrimeMLS as of November 5, 2026 (this listing included).

That figure is Owl's Nest Real Estate's analysis of active listings, and asking prices are not sale prices — ask us for recent comparable sales before you make an offer.

How do I schedule a showing of 878 Rattlesnake Island?

To see 878 Rattlesnake Island in Alton, NH, use Request a Showing on this page or call Owl's Nest Real Estate at 401-648-5308.

We can show any MLS-listed home and represent you as your buyer's agent; the listing brokerage represents the seller.

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This listing data is intended 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 11/04/26.