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House for sale at 413 Islington St, Portsmouth, NH 03801 | MLS# 5081394 | Listing updated on 2026-08-23
Photo 1 of House for sale at 413 Islington St, Portsmouth, NH 03801 | MLS# 5081394 | Listing updated on 2026-08-23
Photo 2 of House for sale at 413 Islington St, Portsmouth, NH 03801 | MLS# 5081394 | Listing updated on 2026-08-23
Photo 3 of House for sale at 413 Islington St, Portsmouth, NH 03801 | MLS# 5081394 | Listing updated on 2026-08-23
Photo 4 of House for sale at 413 Islington St, Portsmouth, NH 03801 | MLS# 5081394 | Listing updated on 2026-08-23
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Listed by: Jackie M Guido | Lamacchia Realty, Inc. (603) 791-4992

$949,500

Monthly Est:$4,726

  • Beds Icon-- Bed
  • Beds Icon
    -- Bath
  • Beds Icon2,904sqft

413 Islington St, Portsmouth, NH 03801

$4,726/moEst:

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  • Duplex

  • Built in 1835

  • $-- HOA

  • 6,098 sqft lot

  • $327/sq.ft

Description

INVESTORS & CONTRACTORS TAKE NOTICE! This is the West End restoration opportunity you’ve been waiting for. Located just a 10-minute stroll from the heart of downtown Portsmouth, this stately duplex offers a rare “blank canvas” for those looking to create a masterpiece in one of the Seacoast’s most desirable neighborhoods.

Currently occupied and functioning as a two-family residence, this property is home to families on both the first and second floors. While the home requires significant rehabilitation and a “top-to-bottom” vision, its solid bones and classic New England character remain intact. Whether you are looking for a high-yield investment project, a condo convers
ion opportunity (CD4-L2 Zoning), or a “sweat equity” dream home where you can live in one unit while restoring the other, the potential here is unmatched.

You simply cannot beat this location. Enjoy the best of Portsmouth’s West End! Walk to local coffee shops, award-winning restaurants, and the vibrant energy of Market Square in minutes. Properties in this corridor, especially those with this much “value-add” potential, are becoming increasingly rare.

Property Highlights: Versatile Duplex Layout: Separate units on the first and second floors. Premium West End Corridor: High-demand area with strong historical appreciation. Zoning Potential: CD4-L2 district offers various development or conversion paths. Rare amenities: Enjoy a spacious, fenced-in backyard and the incredible convenience of TWO separate driveways providing rare off-street parking for both units. Livable Restoration: Currently housing two families, providing immediate functionality while you plan your renovation.

Bring your contractor, your architect, and your vision. 413 Islington St is ready for its next chapter. Sold “as-is.”

  • Houzeo last checked: 0 minutes ago
  • Listing updated: August 23, 2026 at 8:29 pm
  • Source: NEREN/Prime MLS-NH | MLS#: 5081394 NEREN/Prime MLS-NH

Property Details

  • Status

    Active Under Contract

  • Type

    Multi Family

  • No. of Stories

    -

  • County

    Nh Rockingham County

  • City

    Portsmouth

  • Neighborhood

    --

  • Year Built

    1835

  • HOA Fees

    -

  • Finished Area

    2,904 sqft

  • Lot Size

    6,098 sqft lot

  • Basement Area

    - sqft

  • MLS Name

    NEREN/Prime MLS

  • MLS Number

    5081394

  • MLS Status

    (31) Under Contract - Active Under Contract

  • Days on Market

    193

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Location

Facts & Features

Rooms

  • Bedrooms & bathrooms

    Bedroom: --

    Bathroom: --

Interior

  • Sewer

    Public Sewer

  • Cooling

    None

  • Exterior Features

    Shed

  • Heating

    Natural Gas, Hot Water

  • Flooring

    Carpet, Hardwood, Vinyl

Construction

  • Year Built

    Year Built: 1835

  • Home type

    Duplex

  • Property Condition

    Existing

  • Foundation Details

    Brick/mortar, Fieldstone, Poured Concrete

  • Construction Materials

    Wood Frame, Vinyl Siding

  • Roof

    Asphalt Shingle

  • Architectural Style

    Colonial, Duplex

Utilities & Energy

  • Electric

    100 Amp Service, Circuit Breakers

  • Basement

    Bulkhead, Concrete Floor, Full, Unfinished

  • Parking Features

    Driveway, Off Street, Parking Spaces 5 10, Paved

  • Utilities

    Gas On Site

  • Water Source

    Public

Other Features

  • Lot Features

    Neighbor Business, In Town, Near Shopping

Price History

DateEventPrice

08/23/2026

Source: mls_logoNEREN/Prime MLS-NH #5081394

Contingent (Active Under Contract)

$949,500

$327/sqft

07/16/2026

Source: mls_logoNEREN/Prime MLS-NH #5081394

Price Decreased

$949,500 -5.00%

$327/sqft

06/24/2026

Source: mls_logoNEREN/Prime MLS-NH #5081394

Price Decreased

$999,500 -6.55%

$344/sqft

06/10/2026

Source: mls_logoNEREN/Prime MLS-NH #5081394

Price Decreased

$1,069,500 -6.14%

$368/sqft

05/28/2026

Source: mls_logoNEREN/Prime MLS-NH #5081394

Price Decreased

$1,139,500 -4.20%

$392/sqft

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Based on information from PrimeMLS Inc. through Oct 11, 2026, 09:45AM. 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, 09:45AM. © 2026 PrimeMLS, Inc. All Rights Reserved.

Advertising Broker: Derek Greene | The Greene Realty Group