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621 Islington Street, Portsmouth, NH

Condominium

For SaleActive
2 Beds|1 Baths|911 ft²|Built 1900|Portsmouth

Listed by Tate & Foss Sotheby's International Rlty · Brett Mulvey

Property Description

Owner financing will be considered. Welcome home to a fully renovated condo that combines modern comfort with an unbeatable location. The 2 bedroom home is ideally situated in the lively West End, steps from cafés, shops, and local favorites. With Downtown Portsmouth and Kittery Foreside just minutes away, you'll enjoy the best of Seacoast living. Inside, the open-concept layout is perfect for both relaxing and entertaining. Sunlight pours into the spacious living area, complemented by fresh grey walls and crisp white trim for a bright, welcoming atmosphere. The kitchen is a standout, featuring sleek stainless steel Hisense appliances, soft-close cabinetry, and Glacier Bay and Kohler fixtures, all designed for both style and functionality. Stay comfortable year-round with energy-efficient Mitsubishi mini splits for heating and cooling. Additional conveniences include in-unit laundry, two off-street parking spaces, and low condo fees that cover water, sewer, landscaping, and snow removal. Located in the desirable Little Harbor School District, this condo offers a walkable, urban lifestyle with the charm of Portsmouth’s Seacoast. Move in, relax, and start enjoying everything this dynamic community has to offer—everything has been done for you! Owner financing will be considered.

Property Details

Essentials & finishes

  • Bedrooms:2
  • Total Baths:1
  • SqFt:911
  • Price / SqFt:$620.20
  • Property Type:Condominium
  • Year Built:1900
  • County:NH-Rockingham
  • Town:Portsmouth, NH
  • Status:Active
  • Days on Market:122

Primary Features

CountyNH-Rockingham
Property TypeResidential
Year Built1900
ZoningB

Interior Features

AppliancesDishwasher, Microwave, Refrigerator, Electric Stove
BasementYes
Basement Access TypeWalk-up
Basement DescriptionFull, Slab
1/4 Baths0
3/4 Baths1
CoolingMini Split
Electric100 Amp Service
HeatingElectric, Mini Split
Rooms - Total4
SqFt-Approximate Finished Above Grade911
SqFt-Approximate Finished Below Grade0
SqFt Approximate Total Finished911
SqFt Approximate Total911

Location Information

School - DistrictPortsmouth
School - ElementaryLittle Harbor School
School - HighPortsmouth High School
School - Middle/JrPortsmouth Middle School

Financial Details

Foreclosed / Bank-Owned / REONo
Association Fee$300
Fee FrequencyMonthly
Tax - Gross Amount$6,398
Tax Year2025
Taxes TBDNo

Additional

Construction StatusExisting
ConstructionWood Frame, Vinyl Siding
CovenantsYes
Flood ZoneNo
Pre-ConstructionNo
Property Sub TypeCondominium
SeasonalNo
Total StoriesOne
SurveyedYes
Timeshare/Fractional OwnershipNo

External Features

DrivewayPaved
FoundationBrick/Mortar, Poured Concrete, Stone
GarageNo
Lot FeaturesCity Lot, Level
Lot - Acres0.35
Lot - SqFt15,246
ParkingAssigned, Parking Spaces 2
Road Frontage TypePublic
Road FrontageYes
Road Frontage Length120
RoofAsphalt Shingle
SewerPublic Sewer
UtilitiesCable Available
Water SourcePublic
MLS®: PrimeMLS #5079266; Listed by Tate & Foss Sotheby's International Rlty · Brett Mulvey

Property History

Price, listing activity & annual taxes for this property

No sales history available.

Market Data

Live snapshot computed from active listings in this town

  • Active listings in Portsmouth103
  • Average list price$1,321,983
  • Price range$339,900 – $4,250,000
  • Market sentimentBuyer's Market

Mortgage Calculator

Estimate your monthly payment for this home

20%
Loan Term
6.5%
Estimated monthly payment$3,775 / mo
  • Principal & Interest$2,857
  • Property Tax$800
  • Home Insurance$118

Estimates use typical New Hampshire costs — a 1.7% effective property-tax rate, insurance at 0.25% of home value/yr, and PMI below 20% down. Actual town tax rates vary; verify with your lender and the town assessor.

$565,000/ Asking Price
For SaleActive
Est. $2,857 / mo20% down · 30yr · 6.5%
Tom DeMatteo

Tom DeMatteo

Owl’s Nest Real Estate · Questions?

401-648-5308

Market Sentiment

Buyer's Market
Buyer’s MarketBalancedSeller’s Market

Based on 103 active · 0 sold in Portsmouth (last 90 days)

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NOTE: This representation is based in whole or in part on data generated by PrimeMLS, Inc., which assumes no responsibility for its accuracy. The data relating to real estate displayed on this site comes in part from the IDX Program of PrimeMLS.

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Owl's Nest Real Estate

Copyright 2026 PrimeMLS, Inc. All rights reserved. This information is deemed reliable, but not guaranteed. The data relating to real estate displayed on this Site 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. 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 the PrimeMLS.

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