350 Portsmouth Avenue, New Castle, NH

Property Description

350 Portsmouth Avenue sits in New Castle, New Hampshire — a single-family home offering 3 bedrooms, 4 bathrooms and 2,375 square feet of living space. The asking price is $3,950,000. The format is the classic one — a standalone home with no association between you and your plans for it. Beyond the basics, the listing carries garage parking for 2, 1977 construction and roughly $1,663 per square foot. See the listing's full details below, and reach out for a private showing of 350 Portsmouth Avenue.

Welcome to 350 Portsmouth Avenue, an exceptional waterfront residence offering a front row seat to one of the most captivating maritime settings on the New Hampshire Seacoast. With expansive water views of the Piscataqua River and Back Channel, this remarkable property captures everything that makes New Castle waterfront living so special. From magnificent ships and iconic Portsmouth tugboats to sailboats, fishing vessels and pleasure craft, the ever changing boat traffic provides a spectacular backdrop from morning until night. A private deep water dock makes this a dream for boating enthusiasts, offering direct access to Portsmouth Harbor, the Piscataqua River and the open Atlantic. Adding to the property's unique appeal is deeded access to the Back Channel, creating a wonderful launching point for kayaks and paddleboards. Designed to embrace this extraordinary setting, the home features multiple waterfront decks for entertaining, outdoor dining or simply watching the river come alive. A walk-out lower level extends the living space outdoors, while the hot tub and sauna create a private waterfront retreat to enjoy throughout the seasons. Enjoy all the amenities that make New Castle one of the Seacoast's most coveted communities, the nearby yacht clubs, Wentworth Marina, Wentworth by the Sea Country Club, Great Island Common, beaches and the historic charm of island living, all just minutes from downtown Portsmouth. And with New Castle's exceptionally low property taxes, this is a rare opportunity to combine an extraordinary waterfront lifestyle with one of New Hampshire's most desirable communities. Deep water boating out your front door. Kayaking and paddleboarding from your deeded Back Channel access. Incredible water views, spectacular boat traffic, waterfront decks, hot tub and sauna, all in the heart of New Castle. 350 Portsmouth Avenue isn't simply a waterfront home, it's a lifestyle defined by the water.

Location Highlights

350 Portsmouth Avenue is a single family residence in New Castle, New Hampshire, listed at $3,950,000. That works out to about $1,663 per square foot, for a home built in 1977. It has been on the market for 6 weeks.

At this latitude, New Castle averages roughly 8.4 hours of sun a day in June and 3.6 in December.

Zoned schools in the New Castle: Maude H. Trefethen School (Elementary), Rye Junior High School (Middle), Portsmouth (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