Listed by Open Concepts Realty · Scott Rafferty · 603-380-7151
Residential Income · Portsmouth, NH
648 Kearsarge (duplex) Way, Portsmouth, NH
$859,900
$879,900 · changed Oct 19, 2026
Est. $4,348/mo · 20% down, 30-yr, 6.5% (Owl’s Nest Real Estate estimate, not MLS data)
- Sq Ft
- 684
- Built
- 1917
- MLS®
- #5096914
Property Description
A multi-family income property with New Hampshire roots, 648 Kearsarge (duplex) Way in Portsmouth dates to 1917 and lists at $859,900. The home provides 684 square feet of living space. As a multi-unit property it works two ways: live in one unit while the others pay the mortgage, or run the whole building as an investment. The numbers worth knowing: a 0.17-acre lot and roughly $1,257 per square foot. The full photo gallery, live pricing and every MLS detail for 648 Kearsarge (duplex) Way follow below.
648 Kearsarge Way is a well-maintained duplex located in Portsmouth's desirable Atlantic Heights neighborhood. The property offers two, two bedrooms and one bathroom units. Situated just minutes from historic downtown Portsmouth, the Portsmouth Naval Shipyard, shopping, restaurants, schools, and major commuter routes, the property combines neighborhood charm with convenient access to local amenities. The Atlantic Heights neighborhood is known for its walkability, public recreation, mature tree-lined streets, and historic character. The two-unit layout provides flexibility for multi-generational living, long-term rental income, owner occupancy living while generating supplemental revenue, and investment portfolio growth. Many of the main systems in the home have been updated in the last five years, along with the wood floors, paint, and kitchen countertops The property's manageable lot size makes it an attractive option for buyers seeking both convenience and character in one of the Seacoast's most desirable communities.
Location Highlights
648 Kearsarge (duplex) Way is a residential income in Portsmouth, New Hampshire, listed at $859,900. That works out to about $1,257 per square foot, for a home built in 1917. It has been on the market for 4 months.
At this latitude, Portsmouth averages roughly 8.4 hours of sun a day in June and 3.6 in December.
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
- SqFt
- 684
- Price / SqFt
- $1257.16
- Property Type
- Residential Income
- Year Built
- 1917
- County
- NH-Rockingham
- Town
- Portsmouth, NH
- Status
- Active
- Days on Market
- 118
Primary Features
- County
- NH-Rockingham
- Property Type
- Residential Income
- Year Built
- 1917
- Zoning
- GRB
Interior Features
- Basement
- Yes
- Basement Access Type
- Interior
- Basement Description
- Concrete
- Cooling
- None
- Electric
- Circuit Breakers
- Heating
- Hot Air, Hot Water
- SqFt-Approximate Finished Above Grade
- 684
- SqFt-Approximate Finished Below Grade
- 0
- SqFt Approximate Total Finished
- 684
- SqFt Approximate Total
- 1,075
Financial Details
- Tax - Gross Amount
- $7,597
- Tax Year
- 2026
- Taxes TBD
- No
Additional
- Construction Status
- Existing
- Construction
- Brick Exterior, Masonry
- Covenants
- No
- Flood Zone
- No
- Pre-Construction
- No
- Seasonal
- No
- Total Stories
- 1.75
- Surveyed
- Yes
External Features
- Driveway
- None
- Foundation
- Concrete
- Garage
- No
- Lot Features
- Corner Lot, In Town, Near Shopping, Neighborhood, Near School(s)
- Lot - Acres
- 0.17
- Lot - SqFt
- 7,405
- Road Frontage Type
- Paved, Public
- Road Frontage
- No
- Roof
- Shingle
- Sewer
- Public
- Utilities
- Cable Available, Phone Available
- Water Source
- Public
MLS®: PrimeMLS #5096914; Listed by Open Concepts Realty · Scott Rafferty · 603-380-7151
Property History
Estimated annual taxes for this property
- 2024
- $14,618
- 2023
- $14,253
- 2022
- $13,887
Source: Owl’s Nest Real Estate estimate from the list price at New Hampshire’s average effective tax rate — not PrimeMLS or town assessor data. Verify with the town assessor.
Market Data
Live snapshot computed by Owl’s Nest Real Estate from PrimeMLS IDX active listings in this town
- Active listings in Portsmouth
- 123
- Average list price
- $1,045,208
- Price range
- $439,900 – $2,775,000
Mortgage Calculator
Estimate your monthly payment for this home
Estimated Monthly Payment
$5,745/ mo
- Principal & Interest
- $4,348
- Property Tax
- $1,218
- Home Insurance
- $179
Source: Owl’s Nest Real Estate estimate, not PrimeMLS data. 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.
Around This Property
Schools, everyday places and nearby destinations near 648 Kearsarge (duplex) Way, Portsmouth, NH
Source: Google Maps Platform (Places) and Owl’s Nest Real Estate — not PrimeMLS data.
Questions About This Listing
How much does 648 Kearsarge (duplex) Way cost?
648 Kearsarge (duplex) Way in Portsmouth, NH is listed for $859,900 on PrimeMLS.
That is about $1,257 per square foot of finished living space.
It came on the market on June 26, 2026.
How big is 648 Kearsarge (duplex) Way?
648 Kearsarge (duplex) Way in Portsmouth, NH has 684 square feet of finished living space.
Which brokerage has 648 Kearsarge (duplex) Way listed?
648 Kearsarge (duplex) Way in Portsmouth, NH is listed by Scott Rafferty of Open Concepts Realty (603-380-7151).
Owl's Nest Real Estate shows it through the PrimeMLS IDX feed; we are not the listing brokerage.
What type of home is 648 Kearsarge (duplex) Way?
648 Kearsarge (duplex) Way in Portsmouth, NH is a multi-family income property built in 1917.
The MLS lists its style as Cape, with 1.75 stories.
What town is 648 Kearsarge (duplex) Way in?
648 Kearsarge (duplex) Way is in Portsmouth, New Hampshire 03801, in Rockingham County.
Location notes from the MLS: in town, near shopping and near school(s).
What is the lot size of 648 Kearsarge (duplex) Way?
648 Kearsarge (duplex) Way in Portsmouth, NH sits on 0.17 acres, per the MLS.
The lot is described as corner lot.
Zoning: GRB.
The MLS says the lot has been surveyed.
The MLS lists it as outside a flood zone.
What are the annual property taxes for 648 Kearsarge (duplex) Way?
Annual property taxes on 648 Kearsarge (duplex) Way in Portsmouth, NH are $7,597 for the 2026 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.
What heating and cooling does 648 Kearsarge (duplex) Way have?
648 Kearsarge (duplex) Way in Portsmouth, NH is heated by hot air and hot water, per the MLS.
The MLS lists no cooling system.
What are the water and sewer systems at 648 Kearsarge (duplex) Way?
648 Kearsarge (duplex) Way in Portsmouth, NH has public water and public sewer, per the MLS.
MLS details — water: public; sewer: public.
Electric: circuit breakers.
Other utilities: cable available and phone available.
Does 648 Kearsarge (duplex) Way have a basement?
Yes. 648 Kearsarge (duplex) Way in Portsmouth, NH has a basement with interior access.
The MLS describes it as concrete.
Is 648 Kearsarge (duplex) Way still for sale?
Yes. 648 Kearsarge (duplex) Way in Portsmouth, NH is listed as Active on PrimeMLS (MLS #5096914).
Status can change quickly; contact us to confirm availability before you visit.
How does the price of 648 Kearsarge (duplex) Way compare with other Portsmouth listings?
At $859,900, 648 Kearsarge (duplex) Way in Portsmouth, NH is priced below the $1,387,500 median asking price of the 6 multi-family properties for sale in Portsmouth on PrimeMLS as of November 3, 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 can I see 648 Kearsarge (duplex) Way in person?
To see 648 Kearsarge (duplex) Way 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 11/03/26.