413 Islington Street, Portsmouth, NH 03801
What's special
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 conversion 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.”
- 181 days |
- 135 |
- 1 |
Travel times
Living Room
Kitchen
Dining Room
Zillow last checked:
Listing updated:
Jackie M Guido,
Lamacchia Realty, Inc. 603-791-4992
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 4
- Bathrooms: 3
- Full bathrooms: 2
Heating
- Natural Gas, Hot Water
Cooling
- None
Features
- Flooring: Carpet, Hardwood, Vinyl
- Basement: Bulkhead,Concrete Floor,Full,Unfinished,Interior Entry
Interior area
- Total structure area: 3,634
- Total interior livable area: 2,904 sqft
- Finished area above ground: 2,904
- Finished area below ground: 0
Video & virtual tour
Property
Parking
- Parking features: Paved, Driveway, Off Street, Parking Spaces 5 - 10
- Has uncovered spaces: Yes
Features
- Levels: 3
- Exterior features: Shed
- Frontage length: Road frontage: 61
Lot
- Size: 6,098 Square Feet
- Features: Neighbor Business, In Town, Near Shopping
Details
- Parcel number: PRSMM0144B0033L
- Zoning description: CD4-L2
Construction
Type & style
- Home type: MultiFamily
- Architectural style: Colonial
- Property subtype: Multi Family
Materials
- Wood Frame, Vinyl Siding
- Foundation: Brick, Fieldstone, Poured Concrete
- Roof: Asphalt Shingle
Condition
- New construction: No
- Year built: 1835
Utilities & green energy
- Electric: 100 Amp Service, Circuit Breakers
- Sewer: Public Sewer
- Water: Public
- Utilities for property: Gas On-Site
Community & HOA
Location
- Region: Portsmouth
Financial & listing details
- Price per square foot: $327/sqft
- Tax assessed value: $845,000
- Annual tax amount: $9,447
- Date on market: 3/31/2026
Price history
| Date | Event | Price |
|---|---|---|
| 7/17/2026 | Price change | $949,500-5%$327/sqft |
Source: | ||
| 6/25/2026 | Price change | $999,500-6.5%$344/sqft |
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| 6/11/2026 | Price change | $1,069,500-6.1%$368/sqft |
Source: | ||
| 5/29/2026 | Price change | $1,139,500-4.2%$392/sqft |
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| 5/9/2026 | Price change | $1,189,500-2.7%$410/sqft |
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| 4/20/2026 | Price change | $1,222,000-6%$421/sqft |
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| 3/31/2026 | Listed for sale | $1,300,000$448/sqft |
Source: | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2024 | $9,447 +15.1% | $845,000 +66% |
| 2023 | $8,210 +6.1% | $509,000 |
| 2022 | $7,737 +3.4% | $509,000 |
| 2020 | $7,482 -1.1% | $509,000 |
| 2019 | $7,564 -2.3% | $509,000 +4.2% |
| 2018 | $7,741 +12.6% | $488,700 +9.4% |
| 2017 | $6,873 +9% | $446,900 +20.8% |
| 2016 | $6,305 +1.5% | $370,000 |
| 2015 | $6,212 +6.8% | $370,000 +15.2% |
| 2014 | $5,814 +2.9% | $321,200 -0.2% |
| 2012 | $5,649 +1.6% | $321,900 |
| 2011 | $5,559 -0.8% | $321,900 |
| 2010 | $5,604 | $321,900 |
Find assessor info on the county website
Monthly payment
Estimated market value
$903,000
$858,000 - $948,000
$3,962/mo
Climate risks
Explore flood, wildfire, and other predictive climate risk information for this property on First Street®️.