New Castle, NH Homes for Sale & Real Estate

Discover exceptional coastal living in sought-after, low-tax New Castle, NH. Situated on a beautifully landscaped 0.64-acre lot, this 5-bedroom, 6-bath luxury home offers 4,740 square feet above grade, plus 1,498 square feet of finished lower-level space, totaling approximately 6,238 square feet. Designed for entertaining and everyday comfort, the home features a dramatic living room with soaring 15+ foot ceilings and a chef’s kitchen with side-by-side full-size Sub-Zero refrigerator and freezer, Wolf 6-burner range with griddle, and wet bar. The luxurious primary suite includes dual walk-in closets and a spa-inspired bath with soaking tub and dual-head shower. A first-floor office and expansive finished third floor offer flexible living space. The finished lower level features a custom Irish bar, wine room, beverage coolers, media room, home gym, oversized sauna, and recently renovated three-quarter bath. Outdoors, a private in-ground pool creates a resort-inspired setting for summer entertaining, complemented by a three-car garage. The location is equally impressive. Walk to Great Island Common, a 32-acre seaside park with sandy beaches, green space, picnic areas, playgrounds, and views of Whaleback Lighthouse. Fort Stark State Historic Park is also within walking distance, offering coastal scenery and opportunities to launch kayaks and paddleboards. The historic Wentworth by the Sea Hotel and Wentworth Marina are within walking distance, while downtown Portsmouth’s restaurants, shops, and cultural attractions are just a short drive away. With exceptional amenities and walkable access to beaches, parks, and waterfront destinations, this New Castle luxury home offers the best of New Hampshire Seacoast living.

Experience the charm of village living in the heart of New Castle! This beautifully maintained 1776 Cape is ideally situated in the center of this picturesque island community, where you can stroll to the Islander Café, post office, Town Hall, and historic village landmarks. Just 2 miles from downtown Portsmouth, the location offers a wonderful blend of coastal tranquility and everyday convenience. Inside, wide pine floors, custom built-ins, and a welcoming living room with gas fireplace showcase the home's New England character. The updated kitchen features a SubZero Gallery refrigerator, Miele dishwasher, and Bosch induction range, while renovated bathrooms offer modern comfort. The thoughtful floor plan includes 3 bedrooms and 2 full bathrooms, with a convenient first-floor primary bedroom and laundry. Meticulously maintained and move-in ready, the home has benefited from extensive improvements including a new boiler and water heater, whole-house basement insulation, water softener and reverse osmosis filtration, substantial electrical upgrades, complete exterior painting, masonry work, and numerous additional updates. Out back, a beautiful, private patio surrounded by established gardens offers an inviting spot to relax or entertain. Directly across the street, Mud Cove Boatyard provides a lovely waterfront setting to sit by the water or launch a kayak. Additional details regarding exclusive access to MCBY are available. Enjoy nearby New Castle Commons, beaches, and scenic coastal walks, along with Portsmouth's restaurants, shops, and cultural attractions. With New Castle's low property taxes, this is a special opportunity to enjoy village life in a thoughtfully updated historic home.

Set in a coveted New Castle neighborhood, this low-maintenance single-family home offers an exceptional blend of quality, style, and coastal living. Enter the Foyer, which seamlessly connects to the sun-filled, open concept kitchen, dining and living area. The interior living spaces feature a beautiful, recently renovated kitchen appointed with Italian appliances, natural marble countertops, and a generously sized island. An adjacent patio sets the stage for al fresco dining. The expansive dining area flows into the living room, which features built-ins, a gas fireplace and a vaulted ceiling. There is direct acces from the living area to the deck which makes an ideal entertaining home. Hardwood floors run throughout the main level. The first-floor primary suite features a walk-in closet, an additional closet, and a spacious bath with an oversized tiled shower. A mudroom with laundry connects to the two-car garage, and a discreetly located powder room completes the main level. Upstairs, two generously sized bedrooms share a full bath, complemented by a versatile office or den area, ideal for working from home or a quiet retreat. The finished lower level offers flexible space for a media room or home gym, plus an additional unfinished area for storage. Association amenities include a private beach, tennis courts, an in-ground pool, and clubhouse, all included in the HOA fee. Enjoy walking-distance access to fine dining at the Wentworth by the Sea Hotel and the other restaurants along the marina, with downtown Portsmouth just minutes away. An exceptional opportunity to enjoy New Castle's sought-after coastal lifestyle, with its charming seaside setting, low property taxes, and outstanding amenities. Photos to come on line October 2nd.

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.