A Private Island Cabin on Lake Winnipesaukee for $700,000
$700,000
Rattlesnake Island sits out in Lake Winnipesaukee off Alton Bay, New Hampshire's largest lake and one of New England's classic summer destinations — and this isn't a lot near the island, it's 0.94 acres of the island itself, reachable only by boat.
The draw here is the kind of privacy that's genuinely hard to find on Winnipesaukee anymore: a secluded cabin with three bedrooms and two bathrooms across 1,057 square feet, built in 1999 and recently refreshed with a new deck and an updated bathroom and shower shed. The dock is brand new too — a professionally built, crank-up model that lifts straight out of the water at the end of the season, so there's no winter haul-out headache. Miles of hiking trails run through the island's interior, and the water around it is clean enough for real swimming, not just wading.
At $700,000, or $662 a square foot, buying an entire island lot on Winnipesaukee is a different kind of number than buying lake frontage on the mainland — and this one comes with an established rental history, so the property can help cover its own costs when it's not in use. This is a for-sale-by-owner listing with no listing agent involved, so bring a buyer's agent or attorney to handle the offer and closing rather than relying on the seller to represent both sides.
Life at the Water
Water Access & Depth
This is boat-access-only — the property sits on its own island in Lake Winnipesaukee, so getting to and from the mainland means a boat, not a driveway. The new crank-up dock makes seasonal use easier since it lifts out of the water rather than needing to be pulled apart each fall, but confirm with the seller which mainland marina or launch point serves this property before assuming logistics.
Recreation & Boating
Lake Winnipesaukee is New Hampshire's largest lake at roughly 44,600 acres, with more than 250 islands and a long history as a New England summer destination — Rattlesnake Island itself has its own network of hiking trails through the interior. Swimming, boating, and fishing for lake trout and smallmouth bass are all part of daily life here, and the lake's size means genuinely open water rather than a crowded cove.
Dock & Waterfront Features
A brand-new, professionally built crank-up dock is already in place, designed to lift out of the water for the winter rather than requiring a full teardown — a real convenience on a lake that freezes solid each year. Confirm with the seller whether any additional permitting applies, since New Hampshire's Department of Environmental Services regulates docks on Winnipesaukee.
Flood & Insurance Considerations
Winnipesaukee doesn't carry the hurricane risk of a coastal property, but a boat-access-only island cabin comes with its own insurance considerations — confirm with the seller how the home is currently insured, since island and boat-access-only properties can affect standard homeowners coverage and rates. Ice-in and ice-out timing each year also affects how many months the island is realistically reachable, worth asking about directly.
Beyond the Property Line
Local Flavor & Small-Town Character
Alton Bay is a classic Lake Winnipesaukee village at the lake's southern tip, known for its bandstand concerts, a small public beach, and a boardwalk that's been a summer gathering spot for generations. It's a quieter, more old-New-England corner of the lake compared to the busier Weirs Beach area further north.
Outdoor Recreation & Natural Surroundings
Mount Major, one of the region's most popular day hikes, rises just a few miles from Alton Bay and rewards the climb with sweeping views back over Winnipesaukee. Gunstock Mountain Resort, with skiing in winter and mountain biking and a summer aerial park in warmer months, sits a short drive away for anyone who wants more than the water.
Listed on Zillow
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