18 Diamond Island

Off Market

18 Diamond Island

Gilford NH 03249

748 sq. ft.

30492 sq. ft.

Single-Family

Last sold for $750,000

Jen McCullough, last sold this property on 06 October 2025 after -36 days on market.

Overview

BACKUP OFFERS BEING ACCEPTED. As unique as it gets! This spacious boathouse with living quarters above is located on Diamond Island, Lake Winnipesaukee, offering 146 feet of pristine waterfront and desirable southwest exposure. Step directly from your boat into the expansive boathouse, which provides full protection from the elements. The lower level features a large dock—perfect for sunbathing, relaxing, or taking a swim in the lake’s crystal-clear waters. Upstairs, the thoughtfully designed living quarters include a full-size bedroom, kitchen, spacious living/dining area, and a loft. An abundance of windows frame breathtaking panoramic views of the lake, bringing the outdoors in. Just off the living room, an over-the-water deck offers a front-row seat to the lake’s ever-changing moods. A second deck at the rear of the boathouse provides additional space ideal for dining, game night, or simply unwinding. A charming nearby bunkhouse adds even more appeal, featuring a large sleeping area and a three-quarter bath. Rich in history, Diamond Island was the site of U.S. Navy underwater experiments in 1947 and is considered a prime spot for diving enthusiasts. Come experience life over the water, with your boat safely housed below, and fall asleep to the soothing sound of the waves.

Features

2 bedrooms

1 bathroom

748 sq. ft. floor area

30492 sq. ft. lot size

Single-Family

Estimated Value

Based on this property and similar 2 bedroom single-family properties sold in Gilford over the last 12 months, the estimated median property value of 18 Diamond Island is $495k.

Median value

$495k

Estimated value range

$330k - $1.1m

Median days on market

Estimated value trend

18%

increase over the last 12 months

Average days on market is based on recent, comparable sales in Gilford. 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 18 Diamond Island

2025

Sold

$750,000

06 Oct 2025 by Jen McCullough, of Maxfield Real Estate/Wolfeboro

Happy sellers in Gilford

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

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

In the last 12 months, 18 two-bedroom single-family properties similar to 18 Diamond Island, have been sold.

This represents a 54% decrease in two-bedroom single-family properties sales when compared to the previous 12 months.

Sold

For Sale

Interested in selling?

People are reaching out to these agents in Gilford for a market analysis.

Regina Galasso

at Starr Realty

(4 reviews)

Get a market analysis

Adam Dow

at Keller Williams Lakes & Mountains Realty

(122 reviews)

Get a market analysis

Dana Flanders

at Today Real Estate

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Corina Cisneros

at EXP Realty

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Nearby agents

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

Regina Galasso

Regina Galasso is an award winning recommended agent for Gilford. They have 2 local sales and collected 1 local review across the last 12 months.

5 (4 reviews)
1 Review in Gilford
2 Sales in Gilford

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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