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  • Listed by: Carey Giampa, LLC/Seabrook Beach • Patrick Carey
    $2,639,000

    171 Gates Street, Portsmouth, NH 03801

    4beds
    2,450sqft
    : 
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    Single Family Residence
    Built in 1710
    6,098 Square Feet Lot
    $-- Zestimate®
    $1,077/sqft
    $-- HOA

    What's special

    The Tobias Langdon House, circa 1710, is a rare and remarkable surviving residence set within one of the few intact colonial-era neighborhoods in New England’s most attractive seaport town. Rich in historic, character and timeless appeal, the home has been thoughtfully updated to provide the comfort, efficiency, and ease of modern living while preserving its extraordinary architectural integrity. Located in the heart of Portsmouth’s coveted South End on a low-trafficked side street, the home offers a rare sense of privacy and tranquility just steps from the vibrant energy of the city. Inside, you’ll find original wide-plank flooring, authentic architectural details, gracious 8-foot ceilings, and generously scaled rooms that reflect the craftsmanship of a bygone era, all enhanced by abundant natural light that creates a warm and inviting atmosphere throughout. Every detail tells a story, from the preserved period features to the carefully integrated modern systems, including central air conditioning, a new heating system, updated electrical, and the added peace of mind of a full-house generator. The cedar shake roof further underscores the home’s authenticity while complementing its enduring aesthetic. Set on an oversized lot, the property unfolds into a private backyard garden oasis with serene river views, framed by mature, flowering landscaping inc exotic Japanese maple and cherry trees that change beautifully with the seasons. An expansive, fully equipped outdoor kitchen creates the perfect setting for effortless entertaining and unforgettable gatherings under the open sky. Adding to the home’s exceptional rarity and convenience is 3-car parking providing ease and flexibility. From this unparalleled location, you are just moments from Market Square, Prescott Park, the waterfront, and an array of acclaimed restaurants, boutiques, and cultural attractions that define Portsmouth as one of the most desirable small seaside cities in New England. Showings begin 5/8/26
    74 days
    |
    987
    |
    37
    |

    Zillow last checked:

    Listing updated:

    Listed by:

    Patrick Carey,

    Carey Giampa, LLC/Seabrook Beach Cell:603-583-1000

    Source: PrimeMLS,MLS#: 5087030MLS Logo

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      Facts & features

      Interior

      Bedrooms & bathrooms
      • Bedrooms: 4
      • Bathrooms: 2
      • Full bathrooms: 1
      • 3/4 bathrooms: 1
      Heating
      • Hot Water, Zoned
      Cooling
      • Central Air
      Appliances
      • Included: Dishwasher, Dryer, Range Hood, Gas Range, Refrigerator, Washer
      Features
      • Basement: Full,Unfinished,Interior Entry
      Interior area
      • Total structure area: 3,308
      • Total interior livable area: 2,450 sqft
      • Finished area above ground: 2,450
      • Finished area below ground: 0

      Property

      Parking
      • Parking features: Brick/Pavers, Driveway, Off Street, On Site, Parking Spaces 3 - 5
      • Has uncovered spaces: Yes
      Features
      • Levels: 2.5
      • Stories: 2.5
      • Has view: Yes
      • View description: Water
      • Has water view: Yes
      • Water view: Water
      • Body of water: Piscataqua River
      Lot
      • Size: 6,098 Square Feet
      • Features: Landscaped, Sidewalks, Views, In Town, Near Country Club, Near Golf Course, Near Shopping, Neighborhood, Near Hospital
      Details
      • Parcel number: PRSMM0103B0003L
      • Zoning description: GRB
      • Other equipment: Standby Generator

      Construction

      Type & style
      • Home type: SingleFamily
      • Architectural style: Antique,Colonial
      • Property subtype: Single Family Residence
      Materials
      • Clapboard Exterior, Wood Siding
      • Foundation: Brick, Concrete, Fieldstone, Granite
      • Roof: Asphalt Shingle
      Condition
      • New construction: No
      • Year built: 1710

      Utilities & green energy

      • Electric: 200+ Amp Service, Circuit Breakers
      • Sewer: Public Sewer
      • Utilities for property: Underground Gas

      Community & HOA

      Community
      • Security: Security System
      Location
      • Region: Portsmouth

      Financial & listing details

      • Price per square foot: $1,077/sqft
      • Tax assessed value: $1,707,300
      • Annual tax amount: $19,651
      • Date on market: 5/5/2026
      • Road surface type: Paved

        Estimated market value

        Not available

        Estimated sales range

        Not available

        Not available

        Price history

        DateEventPrice
        5/8/2026Listed for sale$2,639,000-7.4%$1,077/sqft
        Source: PrimeMLS #5087030 Report a problem
        10/20/2025Listing removed$2,850,000$1,163/sqft
        Source: PrimeMLS #5057025 Report a problem
        8/18/2025Listed for sale$2,850,000+256.3%$1,163/sqft
        Source: PrimeMLS #5057025 Report a problem
        2/13/2006Sold$800,000+90.5%$327/sqft
        Source: Public Record Report a problem
        9/17/1998Sold$420,000$171/sqft
        Source: Public Record Report a problem

        Public tax history

        YearProperty taxesTax assessment
        2024$19,088 +17.8%$1,707,300 +70%
        2023$16,201 +6.1%$1,004,400
        2022$15,267 +3.4%$1,004,400
        2020$14,765 -1.2%$1,004,400 -0.2%
        2019$14,951 +5.9%$1,006,100 +12.9%
        2018$14,115 +3%$891,100
        2017$13,705 +8.7%$891,100 +20.4%
        2016$12,613 +1.5%$740,200
        2015$12,428 -4.6%$740,200 +2.9%
        2014$13,021 +3.1%$719,400
        2012$12,625 +5.1%$719,400 +3.4%
        2011$12,015 -0.9%$695,700 -0.1%
        2010$12,121 $696,200
        Find assessor info on the county website

        Monthly payment

        Est. payment

        Payment breakdown

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        All calculations are estimates and provided by Zillow, Inc. for informational purposes only. Actual amounts may vary.
        HOA fees may include property taxes on listings classified as Co-Ops. Contact the listing agent and/or owner for fee details.
        Mortgage interest rates are dependent on a number of factors, including credit score, down payment, and repayment length. Interest rate data provided by Zillow Group Marketplace, Inc. as of 1/1/1970 from various mortgage lenders with which we have lead or other similar arrangements; the Estimated Payment is an average of those rates.
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        Climate risks

        Neighborhood: 03801

        Getting around

        86 / 100
        Very Walkable
        68 / 100
        Bikeable

        Nearby schools

        GreatSchools rating

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