Listed by The Aland Realty Group · Jeffrey Mountjoy · 603-501-0463
Condominium · Portsmouth, NH
673 South Street, Portsmouth, NH
$400,000
$425,000 · changed Oct 30, 2026
Est. $2,023/mo · 20% down, 30-yr, 6.5% (Owl’s Nest Real Estate estimate, not MLS data)
- Beds
- 2
- Baths
- 1
- Sq Ft
- 848
- Built
- 1970
- MLS®
- #5115421
Property Description
673 South Street sits in Portsmouth, New Hampshire — a condominium offering 2 bedrooms, 1 bathroom and 848 square feet of living space. The asking price is $400,000. Condos in this corridor are the low-maintenance way into the market — association-managed exteriors, shared amenities and predictable monthly costs. Beyond the basics, the listing carries garage parking for 1, 1970 construction and roughly $472 per square foot. See the listing's full details below, and reach out for a private showing of 673 South Street.
One floor living. Discover the potential of this two-bedroom Portsmouth condo, ideally situated just a short distance from downtown market square, local parks and recreation areas, local shops cafes, and restaurants. Light bright south facing unit. Featuring wood floors throughout and the convenience of a one-car garage, plus off-street parking for one car. This property offers a wonderful opportunity to bring your vision to life. This condo is in the perfect location, accessible to major routes. Professionally managed condominium. association. A wonderful opportunity to enter the Portsmouth market.
Location Highlights
673 South Street is a condominium in Portsmouth, New Hampshire, listed at $400,000. That works out to about $472 per square foot, for a home built in 1970. It has been on the market for 14 days.
At this latitude, Portsmouth averages roughly 8.4 hours of sun a day in June and 3.6 in December.
Zoned schools in the Portsmouth: Little Harbor School (Elementary), Portsmouth Middle School (Middle), Portsmouth (High). Always confirm zoning with the district office.
Source: zoned school names are PrimeMLS listing data; distances, sun exposure and school facts are Owl’s Nest Real Estate additions (school facts from the NCES, U.S. Department of Education) — not PrimeMLS data.
Property Details
Essentials & finishes
- Bedrooms
- 2
- Total Baths
- 1
- Full Baths
- 1
- SqFt
- 848
- Price / SqFt
- $471.70
- Property Type
- Condominium
- Year Built
- 1970
- County
- NH-Rockingham
- Town
- Portsmouth, NH
- Status
- Active
- Days on Market
- 14
Primary Features
- County
- NH-Rockingham
- Property Type
- Residential
- Year Built
- 1970
- Zoning
- GRA
Interior Features
- Appliances
- Dishwasher, Electric Range, Refrigerator
- Basement
- Yes
- Basement Access Type
- Walkout
- Basement Description
- Unfinished
- 1/4 Baths
- 0
- 3/4 Baths
- 0
- Cooling
- None
- Electric
- Circuit Breakers
- Flooring
- Tile, Wood
- Heating
- Hot Water
- Rooms - Total
- 4
- SqFt-Approximate Finished Above Grade
- 848
- SqFt-Approximate Finished Below Grade
- 0
- SqFt Approximate Total Finished
- 848
- SqFt Approximate Total
- 848
Location Information
- School - District
- Portsmouth
- School - Elementary
- Little Harbor School
- School - High
- Portsmouth
- School - Middle/Jr
- Portsmouth Middle School
Financial Details
- Electric Company
- Eversource
- Fuel Company
- Unitil
- Possession
- Close Of Escrow
- Association Fee
- $424.83
- Fee Frequency
- Monthly
- Fee Includes
- Special Assessments
- Tax - Gross Amount
- $4,610
- Tax Year
- 2025
- Taxes TBD
- No
Additional
- Construction Status
- Existing
- Construction
- Wood Frame
- Covenants
- Yes
- Easements
- Unknown
- Flood Zone
- No
- Pre-Construction
- No
- Property Sub Type
- Condominium
- Restrictions
- # of Occupants
- Seasonal
- No
- Total Stories
- One
- Surveyed
- Unknown
- Timeshare/Fractional Ownership
- No
External Features
- Color
- White
- Driveway
- Common/Shared, Paved
- Foundation
- Block
- Garage
- Yes
- Garage Capacity
- 1
- Lot Features
- Condo Development, Corner Lot, Curbing, Level, Sidewalks, Near Shopping, Near School(s)
- Parking
- Deeded, Garage, Parking Spaces 2
- Road Frontage Type
- Public
- Road Frontage
- TBD
- Roof
- Asphalt Shingle
- Sewer
- Public
- Utilities
- Cable
- Water Source
- Public
MLS®: PrimeMLS #5115421; Listed by The Aland Realty Group · Jeffrey Mountjoy · 603-501-0463
Market Data
Live snapshot computed by Owl’s Nest Real Estate from PrimeMLS IDX active listings in this town
- Active listings in Portsmouth
- 124
- Average list price
- $1,249,900
- Price range
- $311,000 – $4,150,000
Mortgage Calculator
Estimate your monthly payment for this home
Estimated Monthly Payment
$2,490/ mo
- Principal & Interest
- $2,023
- Property Tax
- $384
- Home Insurance
- $83
Property tax: this home’s 2025 annual tax bill of $4,610, per PrimeMLS. The rest is an Owl’s Nest Real Estate estimate: insurance at 0.25% of home value/yr and PMI below 20% down. A sale can trigger a reassessment; confirm with the town assessor and your lender.
Around This Property
Schools, everyday places and nearby destinations near 673 South Street, Portsmouth, NH
Assigned Schools
- Elementary
- Little Harbor School
- Middle
- Portsmouth Middle School
- High School
- Portsmouth
- District
- Portsmouth
Source: Google Maps Platform (Places) and Owl’s Nest Real Estate — not PrimeMLS data.
Questions About This Listing
How big is 673 South Street?
673 South Street in Portsmouth, NH has 2 bedrooms and 1 bathroom in 848 square feet of finished living space.
What is the asking price of 673 South Street?
673 South Street in Portsmouth, NH is listed for $400,000 on PrimeMLS.
That is about $472 per square foot of finished living space.
It came on the market on October 23, 2026.
What schools serve 673 South Street?
The MLS places 673 South Street in Portsmouth, NH in the Portsmouth school district.
Listed schools: Little Harbor School (elementary), Portsmouth Middle School (middle) and Portsmouth (high).
School assignments can change; confirm with the district.
Is 673 South Street still available?
Yes. 673 South Street in Portsmouth, NH is listed as Active on PrimeMLS (MLS #5115421).
Status can change quickly; contact us to confirm availability before you visit.
Who is the listing agent for 673 South Street?
673 South Street in Portsmouth, NH is listed by Jeffrey Mountjoy of The Aland Realty Group (603-501-0463).
Owl's Nest Real Estate shows it through the PrimeMLS IDX feed; we are not the listing brokerage.
What kind of property is 673 South Street?
673 South Street in Portsmouth, NH is a condominium built in 1970.
The MLS lists its style as Garden, with one story.
Where is 673 South Street located?
673 South Street is in Portsmouth, New Hampshire 03820, in Rockingham County.
Location notes from the MLS: sidewalks, near shopping and near school(s).
How much are the property taxes on 673 South Street?
Annual property taxes on 673 South Street in Portsmouth, NH are $4,610 for the 2025 tax year, per the MLS.
New Hampshire towns set their own tax rates and revalue periodically, so confirm the current bill with the Portsmouth assessing office.
Is there an HOA fee at 673 South Street?
The association fee for 673 South Street in Portsmouth, NH is $424 (monthly), per the MLS.
The MLS lists the fee as covering special assessments.
Ask for the association documents and budget to see exactly what the fee covers.
How is 673 South Street heated?
673 South Street in Portsmouth, NH is heated by hot water, per the MLS.
The MLS lists no cooling system.
Does 673 South Street have town water and sewer?
673 South Street in Portsmouth, NH has public water and public sewer, per the MLS.
MLS details — water: public; sewer: public.
Electric: circuit breakers (Eversource).
Other utilities: cable.
Is there a basement at 673 South Street?
Yes. 673 South Street in Portsmouth, NH has a basement with walkout access.
The MLS describes it as unfinished.
What features does 673 South Street have?
The MLS lists these appliances at 673 South Street in Portsmouth, NH: dishwasher, electric range and refrigerator; confirm which ones convey in the purchase agreement.
Flooring: tile and wood.
Does 673 South Street have a garage?
673 South Street in Portsmouth, NH has a 1-car garage and a common/shared and paved driveway.
Parking details: deeded, garage and parking spaces 2.
How does the price of 673 South Street compare with other Portsmouth listings?
At $400,000, 673 South Street in Portsmouth, NH is priced below the $657,450 median asking price of the 70 condos for sale in Portsmouth on PrimeMLS as of November 6, 2026 (this listing included).
That figure is Owl's Nest Real Estate's analysis of active listings, and asking prices are not sale prices — ask us for recent comparable sales before you make an offer.
How do I schedule a showing of 673 South Street?
To see 673 South Street in Portsmouth, NH, use Request a Showing on this page or call Owl's Nest Real Estate at 401-648-5308.
We can show any MLS-listed home and represent you as your buyer's agent; the listing brokerage represents the seller.
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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.
This listing data is intended 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 11/06/26.