For Sale
Single family home for sale at 171 Gates St, Portsmouth, NH 03801 | MLS# 5087030 | Listing updated on 2026-09-27
Photo 1 of Single family home for sale at 171 Gates St, Portsmouth, NH 03801 | MLS# 5087030 | Listing updated on 2026-09-27
Photo 2 of Single family home for sale at 171 Gates St, Portsmouth, NH 03801 | MLS# 5087030 | Listing updated on 2026-09-27
Photo 3 of Single family home for sale at 171 Gates St, Portsmouth, NH 03801 | MLS# 5087030 | Listing updated on 2026-09-27
Photo 4 of Single family home for sale at 171 Gates St, Portsmouth, NH 03801 | MLS# 5087030 | Listing updated on 2026-09-27
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Listed by: Patrick Carey | Carey Giampa, LLC/Seabrook Beach (603) 474-3401

$2,639,000

Monthly Est:$13,135

  • Beds Icon4 Beds
  • Beds Icon
    2 Baths
  • Beds Icon2,450sqft

171 Gates St, Portsmouth, NH 03801

$13,135/moEst:

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  • Single Family Residence

  • Built in 1710

  • $-- HOA

  • 6,098 sqft lot

  • $1,077/sq.ft

Description

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

  • Houzeo last checked: 13 minutes ago
  • Listing updated: September 27, 2026 at 12:08 pm
  • Source: NEREN/Prime MLS-NH | MLS#: 5087030 NEREN/Prime MLS-NH

Property Details

  • Status

    Active

  • Type

    Single Family Residence

  • No. of Stories

    -

  • County

    Nh Rockingham County

  • City

    Portsmouth

  • Neighborhood

    --

  • Year Built

    1710

  • HOA Fees

    -

  • Finished Area

    2,450 sqft

  • Lot Size

    6,098 sqft lot

  • Basement Area

    - sqft

  • MLS Name

    NEREN/Prime MLS

  • MLS Number

    5087030

  • MLS Status

    (10) Active - Active

  • Days on Market

    158

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Location

Facts & Features

Rooms

  • Bedrooms & bathrooms

    Bedrooms: 4

    Bathrooms: 2

Interior

  • Sewer

    Public

  • Cooling

    Central Air

  • Heating

    Hot Water, Zoned

  • Appliances

    Dishwasher, Dryer, Range Hood, Gas Range, Refrigerator, Washer

Construction

  • Year Built

    Year Built: 1710

  • Home type

    Single Family Residence

  • Property Condition

    Existing

  • Roof

    Asphalt Shingle

  • Architectural Style

    Antique, Colonial

  • Foundation Details

    Brick/mortar, Concrete, Fieldstone, Granite

  • Construction Materials

    Clapboard, Wood Siding

Utilities & Energy

  • Water Source

    Public

  • Basement

    Full, Unfinished

  • Utilities

    Underground Gas

  • Electric

    200+ Amp Service, Circuit Breakers

  • Parking Features

    Driveway, Off Street, On Site, Parking Spaces 3 5

Other Features

  • Lot Features

    Landscaped, Sidewalks, Views, In Town, Near Country Club, Near Golf Course, Near Shopping, Neighborhood, Near Public Transit, Near Hospital

Price History

DateEventPrice

09/27/2026

Source: mls_logoNEREN/Prime MLS-NH #5087030

Listed for Sale

$2,639,000 -7.40%

$1,077/sqft

09/23/2025

Source: mls_logoNEREN/Prime MLS-NH #5057025

Off Market

$2,850,000

$1,163/sqft

Nearby Homes

Based on information from PrimeMLS Inc. through Oct 11, 2026, 10:30AM. This display of listings may or may not be the entire Compilation from the PrimeMLS database, and PrimeMLS does not guarantee the accuracy of such information. The listing broker's offer of compensation is made only to other real estate licensees who are participant members of PrimeMLS. This information is deemed reliable, but not guaranteed. The data relating to real estate displayed on this display comes in part from the IDX Program of PrimeMLS. The information being provided is for consumers' personal, non- commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Data last updated Oct 11, 2026, 10:30AM. © 2026 PrimeMLS, Inc. All Rights Reserved.

Advertising Broker: Derek Greene | The Greene Realty Group