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Off Market

378 Sleeper Island

Alton NH 03810

2
1
1078 sq. ft.
23958 sq. ft.
Single-Family
Last sold for $615,000
Betty Ann BickfordBetty Ann Bickford, last sold this property on 31 October 2025 after -10 days on market.

Overview

This property sits on the northwest end of Sleeper Island on Lake Winnipesaukee and offers sunsets galore. The quintessential cottage captures everything island living is about—cozy, well cared for, and loaded with waterfront charm. Inside, the open-concept living, dining, and kitchen area features multiple sliders that frame views from every angle. A wood stove provides warmth on chilly evenings and adds ambiance on rainy days. The first-floor primary bedroom has its own access to the full bath, while upstairs a spacious loft offers two private sleeping areas positioned to wake up to island views through a high cathedral window. Walk out the first-floor sliders to one of several multi-tiered decks—perfect for grilling, entertaining, making s’mores, or relaxing with a good book. Down a level, another deck offers direct access to the lake and sandy swimming. From either deck, enjoy long-range views across Lake Winnipesaukee, abundant sunshine, and the most beautiful sunsets. When you’re ready for a break from the waterfront, step out back to the island’s interior trail system, perfect for hiking and spotting wildlife. There’s still plenty of time to enjoy the lake this season and plan your personal touches for next summer.

Features

2 bedrooms
1 bathroom
1078 sq. ft. floor area
23958 sq. ft. lot size
Single-Family

Estimated Value

Based on this property and similar 2 bedroom single-family properties sold in Alton over the last 12 months, the estimated median property value of 378 Sleeper Island is $556.5k.

Median value
$556.5k
Estimated value range
$287k - $2.81m
Median days on market
24
Estimated value trend
-24%
decrease over the last 12 months
Average days on market is based on recent, comparable sales in Alton. It is only an indication of the time a property is actively listed and should not be relied upon as an accurate representation of how soon a property will be sold.

Property history for 378 Sleeper Island

2025
Sold
$615,000
31 Oct 2025 by Betty Ann Bickford, of Maxfield Real Estate/Wolfeboro

Happy sellers in Alton

~%

We have insufficient information to provide an overview of customer satisfaction for Alton. Viewing the agent profiles, reviews and sales for Alton can provide insights for this location.

Local market activity for 2 bedroom single-family properties in Alton

In the last 12 months, 19 two-bedroom single-family properties similar to 378 Sleeper Island, have been sold.

This represents a 5% decrease in two-bedroom single-family properties sales when compared to the previous 12 months.

Nearby agents

Compare and contact these top performing agents who’ve delivered exception customer service for their clients in Alton

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Brianne Healey

Brianne Healey is a recommended agent for Alton.  They have collected 1 local review across the last 12 months.

  •   5   (26 reviews)
  •  1 Review in Alton
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Adam Dow

Sellers who recommend Adam Dow have praised them for being local expert, responsive, clear communication, strategic, supportive, friendly, and detail-oriented

  •   5   (122 reviews)
  •  3 Sales in Alton
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Susan Bradley

Susan Bradley is a recommended agent for Alton.  They have 2 local sales across the last 12 months.

  •  2 Sales in Alton
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Lana Novak

Lana Novak is a recommended agent for Alton.  They have 1 local sale across the last 12 months.

  •  1 Sale in Alton
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