Listed by KW Coastal and Lakes & Mountains Realty · Michael Whitney · 603-610-8500
Condominium · Portsmouth, NH
140 Cass Street, Portsmouth, NH
Cass Street
$429,900
$469,900 · changed Sep 22, 2026
Est. $2,174/mo · 20% down, 30-yr, 6.5% (Owl’s Nest Real Estate estimate, not MLS data)
- Beds
- 2
- Baths
- 1
- Sq Ft
- 699
- Built
- 2005
- MLS®
- #5108689
Property Description
From its address at 140 Cass Street, this condominium puts you in Portsmouth, New Hampshire. On offer: 2 bedrooms, 1 bathroom and 699 square feet of living space, at a list price of $429,900. 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 2005 construction and roughly $615 per square foot. Browse the gallery and specs below; if it fits, we can have you through the door quickly.
Enjoy effortless downtown living at 140 Cass Street! This condo comes complete with two deeded parking spaces, is pet-friendly, and has an exceptionally low condo fee of only $175/month! This charming 2-bedroom, 1-bathroom condominium offers the ideal blend of low-maintenance living and incredible convenience. Tucked into one of Portsmouth's most accessible neighborhoods, you are just minutes from vibrant Market Square, historic waterfront parks, local shopping, and renowned downtown dining. Inside, the home features a light-filled, open-concept floor plan designed for comfortable living. The functional layout maximizes space with two cozy bedrooms and a full bath, making it an ideal option for first-time buyers, primary residents looking to downsize, or those seeking an affordable coastal getaway. A major advantage of this property is the well-managed condo association, designed to give you ultimate peace of mind and more free time. Skip the heavy outdoor maintenance and spend your weekends enjoying everything Portsmouth has to offer right outside your doorstep. Move-in ready and perfectly situated- don't miss this outstanding opportunity!
Location Highlights
140 Cass Street is a condominium in Portsmouth, New Hampshire, listed at $429,900. That works out to about $615 per square foot, for a home built in 2005. It has been on the market for 8 weeks.
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
- Bedrooms
- 2
- Total Baths
- 1
- Full Baths
- 1
- SqFt
- 699
- Price / SqFt
- $615.02
- Property Type
- Condominium
- Year Built
- 2005
- County
- NH-Rockingham
- Town
- Portsmouth, NH
- Status
- Active
- Days on Market
- 42
Primary Features
- County
- NH-Rockingham
- Property Type
- Residential
- Year Built
- 2005
- Zoning
- GRC
Interior Features
- Basement
- No
- 1/4 Baths
- 0
- 3/4 Baths
- 0
- Cooling
- Wall Unit(s)
- Electric
- Circuit Breakers
- Heating
- Electric
- Rooms - Total
- 4
- SqFt-Approximate Finished Above Grade
- 699
- SqFt-Approximate Finished Below Grade
- 0
- SqFt Approximate Total Finished
- 699
- SqFt Approximate Total
- 699
Financial Details
- Association Fee
- $175
- Fee Frequency
- Monthly
- Tax - Gross Amount
- $4,000
- Tax Year
- 2025
- Taxes TBD
- No
Additional
- Construction Status
- Existing
- Construction
- Vinyl Siding
- Covenants
- Yes
- Flood Zone
- No
- Pre-Construction
- No
- Property Sub Type
- Condominium
- Seasonal
- No
- Total Stories
- Two
- Surveyed
- Unknown
- Timeshare/Fractional Ownership
- No
External Features
- Driveway
- Common/Shared
- Foundation
- Concrete
- Garage
- No
- Lot Features
- Condo Development
- Road Frontage Type
- Association
- Road Frontage
- No
- Roof
- Asphalt Shingle
- Sewer
- Public
- Utilities
- Cable Available
- Water Source
- Public
MLS®: PrimeMLS #5108689; Listed by KW Coastal and Lakes & Mountains Realty · Michael Whitney · 603-610-8500
Property History
Estimated annual taxes for this property
- 2024
- $7,308
- 2023
- $7,125
- 2022
- $6,943
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
- 124
- Average list price
- $1,181,117
- Price range
- $425,000 – $2,775,000
Mortgage Calculator
Estimate your monthly payment for this home
Estimated Monthly Payment
$2,872/ mo
- Principal & Interest
- $2,174
- Property Tax
- $609
- Home Insurance
- $90
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 140 Cass Street, Portsmouth, NH
Source: Google Maps Platform (Places) and Owl’s Nest Real Estate — not PrimeMLS data.
Questions About This Listing
How much does 140 Cass Street cost?
140 Cass Street in Portsmouth, NH is listed for $429,900 on PrimeMLS.
That is about $615 per square foot of finished living space.
It came on the market on September 8, 2026.
How many bedrooms and bathrooms does 140 Cass Street have?
140 Cass Street in Portsmouth, NH has 2 bedrooms and 1 bathroom in 699 square feet of finished living space.
Is 140 Cass Street still for sale?
Yes. 140 Cass Street in Portsmouth, NH is listed as Active on PrimeMLS (MLS #5108689).
Status can change quickly; contact us to confirm availability before you visit.
Which brokerage has 140 Cass Street listed?
140 Cass Street in Portsmouth, NH is listed by Michael Whitney of KW Coastal and Lakes & Mountains Realty (603-610-8500).
Owl's Nest Real Estate shows it through the PrimeMLS IDX feed; we are not the listing brokerage.
What type of home is 140 Cass Street?
140 Cass Street in Portsmouth, NH is a condominium built in 2005.
The MLS lists its style as Townhouse, with two stories.
What town is 140 Cass Street in?
140 Cass Street is in Portsmouth, New Hampshire 03801, in Rockingham County.
What are the annual property taxes for 140 Cass Street?
Annual property taxes on 140 Cass Street in Portsmouth, NH are $4,000 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.
What are the association fees for 140 Cass Street?
The association fee for 140 Cass Street in Portsmouth, NH is $175 (monthly), per the MLS.
Ask for the association documents and budget to see exactly what the fee covers.
What heating and cooling does 140 Cass Street have?
140 Cass Street in Portsmouth, NH is heated by electric, per the MLS.
Cooling: wall unit(s).
What are the water and sewer systems at 140 Cass Street?
140 Cass Street 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.
Does 140 Cass Street have a basement?
No. The MLS lists no basement at 140 Cass Street in Portsmouth, NH.
What parking does 140 Cass Street have?
The MLS lists no garage at 140 Cass Street in Portsmouth, NH; parking is off a common/shared driveway.
How does the price of 140 Cass Street compare with other Portsmouth listings?
At $429,900, 140 Cass Street in Portsmouth, NH is priced below the $659,900 median asking price of the 69 condos 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 140 Cass Street in person?
To see 140 Cass 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.
Similar Listings in Portsmouth
$550,000
0 bd | 0 ba
324 Bartlett Street, Portsmouth, NH
Land
MLS® #5116631 · The Aland Realty Group
$815,000
1 bd | 2 ba | 1,048 ft²
500 Market Street, Portsmouth, NH
Condominium
MLS® #5091377 · KW Coastal and Lakes & Mountains Realty
$809,900
2 bd | 2 ba | 1,324 ft²
500 Market Street, Portsmouth, NH
Condominium
MLS® #5113687 · Open Concepts Realty
$689,900
2 bd | 2 ba | 1,024 ft²
80 Constitution Avenue, Portsmouth, NH
Condominium
MLS® #5108223 · JD Advisors, LLC
$659,900
2 bd | 2 ba | 1,046 ft²
80 Constitution Avenue, Portsmouth, NH
Condominium
MLS® #5108048 · JD Advisors, LLC
$439,900
1 bd | 1 ba | 723 ft²
80 Constitution Avenue, Portsmouth, NH
Condominium
MLS® #5108027 · JD Advisors, LLC
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.