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New Castle Island Homes

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  • /27

    $6,900,000 Pending

    • 4 Beds
    • 5 Baths
    • 3,928 Sq Ft

    152 Portsmouth Ave, New Castle, NH 03854

    Originally built in 1732 in eastern Massachusetts, the Joseph Ellis House is a beautifully preserved example of early New England architecture. Thoughtfully dismantled, cataloged, and reassembled in New Castle, New Hampshire, the home has been restored with care, combining period authenticity with modern craftsmanship. Now set on 1.5 acres along the scenic Piscataqua River—with a separate,

    Tony Jalbert Tate & Foss Sotheby's International Rlty

    152 Portsmouth Ave, New Castle, NH 03854
  • /27

    $5,000 per month

    • 2 Beds
    • 1 Bath
    • 978 Sq Ft
    • House for Rent

    7 Piscataqua St, New Castle, NH 03854

    Ideal location in the heart of New Castle. Walking distance to the beach or an easy bike ride into Portsmouth. Enjoy ocean breezes from the front porch or relax in the sun on the back deck or in the private yard. Lovely kitchen is open to living area with fireplace. Two bedrooms (one queen and two twins) share newly updated bathroom. Room for storage in basement and garage. Fully furnished and

    Laura Ludes Madden Group

    7 Piscataqua St, New Castle, NH 03854
  • /59

    $2,300,000 Sold Jul 21, 2025

    • 1,202 Sq Ft
    • $1913/SF
    • 33 Days On Market
    • 1 Bed
    • 1 Bath
    • Built 1981

    396 Portsmouth Ave, New Castle, NH 03854

    Spectacular views, light and privacy from this island property. Expand the current home or build your dream home on this .57-acre parcel with 300’ frontage on the Piscataqua River offering a rare deep-water access (dock in need of repair/replace) and mooring. Endless potential with elevation to support new construction not limited by flood zone requirements. The current 1 bed, 1 bath, 1200 SF

    Elizabeth Levey-Pruyn The Aland Realty Group

    396 Portsmouth Ave, New Castle, NH 03854
    • /40

      Est $2,162,192 Not Listed For Sale

      • 2 Beds
      • 3 Baths
      • 2,012 Sq Ft

      7 Locke Rd, New Castle, NH 03854

      7 Locke Rd, New Castle, NH 03854
  • /28

    $3,395,000 Pending

    • 4 Beds
    • 3.5 Baths
    • 3,738 Sq Ft

    24 Mill Pond Rd, New Castle, NH 03854

    Experience the pinnacle of New Hampshire coastal living in this exceptional waterfront home in the coveted Mill Pond community at Wentworth by the Sea. Perfectly sited on the water’s edge, it offers sweeping tidal views and spectacular westerly sunsets. Thoughtfully designed for comfort and connection to nature, the home features a first-floor primary suite, a dramatic vaulted living room, and

    Tony Jalbert Tate & Foss Sotheby's International Rlty

    24 Mill Pond Rd, New Castle, NH 03854
  • /21

    $4,900 per month

    • 2 Beds
    • 2 Baths
    • 1,800 Sq Ft
    • House for Rent

    258 Wentworth Rd, New Castle, NH 03854

    Across from the beach! Walk to the Beach at New Castle commons and enjoy the view and water. A beautiful, like-new home is available for rent in the heart of New Castle, Enjoy peek-a-boo water views from this charming furnished residence.This home features two plus bedrooms, a dedicated office, a modern kitchen, a convenient mudroom, and in-unit laundry facilities. It offers a large dining

    John Samonas Samonas Realty, LLC

    258 Wentworth Rd, New Castle, NH 03854
  • /34

    $1,911,000 Sold Jul 02, 2025

    • 2,400 Sq Ft
    • $796/SF
    • 4 Days On Market
    • 3 Beds
    • 2.5 Baths
    • Built 1725

    11 Atkinson St, New Castle, NH 03854

    Experience the very definition of the New Castle lifestyle in a thoughtfully restored antique colonial home. Found in a coveted, peaceful, absolutely prime location: steps from the river and the heart of the village. The William Trundy House C. 1725 still has original hand-hewn beams, restored wide-pine floors, corner posts and period chimney bricks. A warm, three-bedroom residence that beckons

    John Rice Tate & Foss Sotheby's International Rlty

    11 Atkinson St, New Castle, NH 03854
    • /37

      Est $3,669,956 Not Listed For Sale

      • 3 Beds
      • 3 Baths
      • 3,205 Sq Ft

      39 Wentworth, New Castle, NH 03854

      39 Wentworth, New Castle, NH 03854
  • /43

    $3,495,000

    • 4 Beds
    • 4.5 Baths
    • 3,000 Sq Ft

    34 Harborview, New Castle, NH 03854

    Stunning 4 bedroom Contemporary Cape style home in sought after Wentworth community on New Castle. Located on large, 0.49 private lot tucked at the end of Harborview St. This immaculate home features meticulous landscaping and boasts incredible privacy with fenced in backyard, mature trees and partial water views. Enjoy the many benefits of Wentworth living with access to the pool, community

    Jeffrey Mountjoy The Aland Realty Group

    34 Harborview, New Castle, NH 03854
  • /26

    $6,000 per month

    • 2 Beds
    • 1 Bath
    • 828 Sq Ft
    • House for Rent

    5 Atkinson St, New Castle, NH 03854

    Enjoy a month or longer in the heart of New Castle. Available for the month of August! Enjoy this charming two bedroom, one-bath home. The open floor plan is ideal for entertaining or simply relaxing. Off street parking behind the house and a deck for grilling or enjoying a good book. A short walk to the beach or bike into Portsmouth.No pets. NH Meals & Rooms Tax #055564. Also available as a

    Laura Ludes Madden Group

    5 Atkinson St, New Castle, NH 03854
  • /60

    $3,000,000 Sold Jun 27, 2025

    • 5,671 Sq Ft
    • $529/SF
    • 114 Days On Market
    • 4 Beds
    • 4.5 Baths
    • Built 2001

    77 Abigale Ln, New Castle, NH 03854

    Stunning Custom-Built Home in New Castle - Welcome to this exquisite custom-built residence, nestled in one of New Castle's most coveted neighborhoods. Designed with unparalleled attention to detail, this home offers a unique blend of luxury, comfort, and convenience. The property is perfectly situated on an elevated lot, offering breathtaking views of the peaceful cul-de-sac and the surrounding

    Margaret Pesce Great Island Realty LLC

    77 Abigale Ln, New Castle, NH 03854
    • /32

      Est $1,666,606 Not Listed For Sale

      • 2 Beds
      • 2 Baths
      • 1,785 Sq Ft

      33 Piscataqua St, New Castle, NH 03854

      33 Piscataqua St, New Castle, NH 03854
  • /46

    $1,649,000

    • 4 Beds
    • 1.5 Baths
    • 1,941 Sq Ft

    42 Main St, New Castle, NH 03854

    42 Main Street is an updated antique colonial located in the heart of New Castle village. It's within walking distance of the Great Island Cafe and a short stroll to the beach. The property offers views of the Piscataqua River from the patio and inside you'll find stunning wood floors, exposed brick and fireplaces that add to its character and charm. The second floor features two generous

    Laura Ludes Madden Group

    42 Main St, New Castle, NH 03854
  • /2

    $4,850 per month

    • 3 Beds
    • 2.5 Baths
    • 2,950 Sq Ft
    • House for Rent

    16 Wentworth Rd, New Castle, NH 03854

    Charming New Castle home for rent from August 1st to June 2026. Fully furnished and professionally designed with high end finishes. Water views of the Piscataqua River and fenced in rear garden.1st level -kitchen, living room, dining room, and laundry. 2nd level - primary bedroom with en suite bath and second bedroom with 3⁄4 bath. 3rd level - bedroom and bonus room..Close

    Susan Spaulding The Aland Realty Group

    16 Wentworth Rd, New Castle, NH 03854
  • /51

    $3,450,000 Sold May 30, 2025

    • 3,154 Sq Ft
    • $1094/SF
    • 57 Days On Market
    • 4 Beds
    • 3.5 Baths
    • Built 1800

    183 Portsmouth Ave, New Castle, NH 03854

    A tranquil sanctuary with breathtaking water views & sunsets, gardens & easy access to vibrant downtown Portsmouth. Nestled in the coveted New Castle community, this home offers an unparalleled lifestyle of peace, privacy, and comfort. Enjoy sweeping water views of the Piscataqua River and Little Harbor. The custom kitchen opens seamlessly to the spacious four-season sun room. This light-filled

    Janet Sylvester Great Island Realty LLC

    183 Portsmouth Ave, New Castle, NH 03854
    • /40

      Est $2,247,266 Not Listed For Sale

      • 3 Beds
      • 3 Baths
      • 3,270 Sq Ft

      5 Walton Rd, New Castle, NH 03854

      5 Walton Rd, New Castle, NH 03854
  • /30

    $1,485,000

    • 3 Beds
    • 2 Baths
    • 1,424 Sq Ft

    17 Elm Ct, New Castle, NH 03854

    Welcome to your perfect summer sanctuary in the heart of New Castle, NH—where coastal charm, timeless character, and a front-row seat to the Piscataqua River come together in one unforgettable setting. Tucked away on a quiet side street, this delightful antique cottage is designed for those who dream of effortless summer living by the sea. While fully equipped for year-round comfort, the home

    Laura Ludes Madden Group

    17 Elm Ct, New Castle, NH 03854
  • /24

    $2,700,000 Sold Oct 08, 2024

    • 2,702 Sq Ft
    • $999/SF
    • 1 Day On Market
    • 3 Beds
    • 2.5 Baths
    • Built 2017

    2 Mill Pond Rd, New Castle, NH 03854

    This is a rare but wonderful opportunity to become part of the Wentworth By The Sea Communty on beautiful New Castle Island. This lovely home’s soaring ceilings and walls of windows highlight the morning sun from the East and beautiful sunsets that warm the open Family Room/Kitchen and huge rear deck. Enjoy the private location at the end of the street, guaranteeing peaceful evenings overlooking

    Barbara Shea-Smucker Tate & Foss Sotheby's International Rlty

    2 Mill Pond Rd, New Castle, NH 03854
    • /34

      Est $5,381,751 Not Listed For Sale

      • 5 Beds
      • 5.5 Baths
      • 4,890 Sq Ft

      133 Little Harbor Rd, New Castle, NH 03854

      133 Little Harbor Rd, New Castle, NH 03854
  • /56

    $2,350,000

    • 3 Beds
    • 3.5 Baths
    • 3,144 Sq Ft

    22 Colonial Ln, New Castle, NH 03854

    This elegant custom William Ross design home blends classic historical influence with the functionality of modern living. Just 12 years young, it showcases exceptional craftsmanship, thoughtful design, and top-tier finishes throughout. Privately set at the end of Colonial Lane, the home is surrounded by gardens offering the perfect balance of seclusion and convenience. Just minutes from downtown

    Margaret Pesce Great Island Realty LLC

    22 Colonial Ln, New Castle, NH 03854
  • /40

    $1,572,000 Sold Aug 23, 2024

    • 2,245 Sq Ft
    • $700/SF
    • 54 Days On Market
    • 3 Beds
    • 3 Baths
    • Built 1668

    79 Main St, New Castle, NH 03854

    Back on the Market - Nestled in the heart of New Castle village, this quintessential cape-style home, also know as the Thomas Follansby House, offers a glimpse into local town history. Thoughtful updates seamlessly blend with original features creating warm and inviting spaces that complement today's lifestyle. Enhancements include an updated kitchen featuring an Italian Bertazzoni induction

    Carey Rooney H&K REALTY

    79 Main St, New Castle, NH 03854
    • /39

      Est $4,120,355 Not Listed For Sale

      • 4 Beds
      • 4.5 Baths
      • 4,651 Sq Ft

      27 Locke Rd, New Castle, NH 03854

      27 Locke Rd, New Castle, NH 03854
  • /20

    $2,900,000

    • 4 Beds
    • 2.5 Baths
    • 2,621 Sq Ft

    91 Mainmast Cir, New Castle, NH 03854

    Not in a Flood Zone! Mooring Possibility! Large waterfront lot .68 acres providing endless building expansion capabilities to suit your desires! 174' of waterfrontage with direct water access! High & Dry! Look to embrace the serenity of island living in quintessential New Castle! Sitting nicely perched on BOS'NS' Hill overlooking the Piscataqua River Back Channel/Little Harbor. Enjoy kayaking,

    Jason Saphire www.HomeZu.com

    91 Mainmast Cir, New Castle, NH 03854
  • /31

    $2,200,000 Sold Aug 08, 2024

    • 3,564 Sq Ft
    • $617/SF
    • 6 Days On Market
    • 4 Beds
    • 3.5 Baths
    • Built 1998

    51 Spring Hill Rd, New Castle, NH 03854

    Discover luxurious coastal living in the prestigious town of New Castle. Spanning over 3,500 square feet, this home offers a unique lifestyle with its proximity to the serene Great Island Common, the iconic Wentworth by the Sea, and the exclusive Wentworth by the Sea Country Club. Designed for flexibility and comfort, this exquisite home features the option to create a primary suite on either the

    Krissie Moore Great Island Realty LLC

    51 Spring Hill Rd, New Castle, NH 03854
    • /16

      Est $3,868,093 Not Listed For Sale

      • 5 Beds
      • 3.5 Baths
      • 3,966 Sq Ft

      38 Laurel Ln, New Castle, NH 03854

      38 Laurel Ln, New Castle, NH 03854
  • /55

    $5,695,000 New Construction

    • 4 Beds
    • 3.5 Baths
    • 3,976 Sq Ft

    30 Oliver St, New Castle, NH 03854

    Welcome to 30 Oliver Street, a rare opportunity to own a custom-built 4-bedroom, 4-bath home in the heart of New Castle. Designed by renowned Maugel Destefano Architects and built by Auger Builders, this residence blends timeless craftsmanship with modern coastal style and high-end finishes throughout.The stunning kitchen features cathedral ceilings, a large center island, hidden pantry,

    Jim Giampa Carey Giampa, LLC/Rye

    30 Oliver St, New Castle, NH 03854
  • /40

    $2,695,000 Sold Jul 31, 2024

    • 2,523 Sq Ft
    • $1068/SF
    • 11 Days On Market
    • 3 Beds
    • 2.5 Baths
    • Built 1987

    57 Ducks Head Unit A-13, New Castle, NH 03854

    Technically a condo, this stand alone home lives like a single Family property. Meticulously rebuilt in 2017, offering all the benefits of new construction. You can expect modern amenities, energy-efficient systems, and the latest building techniques, ensuring a comfortable and worry-free lifestyle. Step inside to discover a world of high end finishes. The living space is enhanced with premium

    Janet Sylvester Great Island Realty LLC

    57 Ducks Head Unit A-13, New Castle, NH 03854
    • /36

      Est $1,723,674 Not Listed For Sale

      • 3 Beds
      • 2.5 Baths
      • 2,905 Sq Ft

      65 Portsmouth Ave, New Castle, NH 03854

      65 Portsmouth Ave, New Castle, NH 03854
    • /40

      Est $2,140,323 Not Listed For Sale

      • 4 Beds
      • 2 Baths
      • 1,901 Sq Ft

      40 Vennard's Ct, New Castle, NH 03854

      40 Vennard's Ct, New Castle, NH 03854
    • /40

      Est $1,393,823 Not Listed For Sale

      • 6 Beds
      • 3 Baths
      • 3,971 Sq Ft

      52 Main St, New Castle, NH 03854

      52 Main St, New Castle, NH 03854
    • /34

      Not Listed For Sale

      • 3 Beds
      • 3.5 Baths
      • 3,538 Sq Ft

      172 Little Harbor Rd Unit 27-6, New Castle, NH 03854

      172 Little Harbor Rd Unit 27-6, New Castle, NH 03854
    • /36

      Est $2,058,824 Not Listed For Sale

      • 3 Beds
      • 2.5 Baths
      • 2,266 Sq Ft

      23 Oliver St, New Castle, NH 03854

      23 Oliver St, New Castle, NH 03854
    • /40

      Est $4,903,118 Not Listed For Sale

      • 5 Beds
      • 6 Baths
      • 4,984 Sq Ft

      99 Campbells Ln, New Castle, NH 03854

      99 Campbells Ln, New Castle, NH 03854
    • /38

      Est $2,420,026 Not Listed For Sale

      • 3 Beds
      • 2.5 Baths
      • 3,048 Sq Ft

      21 Laurel Ln, New Castle, NH 03854

      21 Laurel Ln, New Castle, NH 03854
    • /40

      Est $3,036,692 Not Listed For Sale

      • 5 Beds
      • 3.5 Baths
      • 5,644 Sq Ft

      82 Abigale Ln, New Castle, NH 03854

      82 Abigale Ln, New Castle, NH 03854
    • /40

      Not Listed For Sale

      • 2 Beds
      • 2 Baths
      • 2,028 Sq Ft

      35 Grist Mill Ln, New Castle, NH 03854

      35 Grist Mill Ln, New Castle, NH 03854
    • /10

      Est $2,536,861 Not Listed For Sale

      • 2 Beds

      350 Portsmouth Ave, New Castle, NH 03854

      350 Portsmouth Ave, New Castle, NH 03854
    • /40

      Est $2,595,263 Not Listed For Sale

      • 4 Beds
      • 4 Baths
      • 4,161 Sq Ft

      54 Neals Ln, New Castle, NH 03854

      54 Neals Ln, New Castle, NH 03854
    • /36

      Est $1,446,688 Not Listed For Sale

      • 3 Beds
      • 2 Baths
      • 1,924 Sq Ft

      55 Pit Ln, New Castle, NH 03854

      55 Pit Ln, New Castle, NH 03854
    • /40

      Est $2,120,696 Not Listed For Sale

      • 3 Beds
      • 2 Baths
      • 2,208 Sq Ft

      33 Riverview Rd, New Castle, NH 03854

      33 Riverview Rd, New Castle, NH 03854

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