Date
Details
Price
Change
Source
3/06/2026
Listed
$1,195,000
—
MLS
Disclaimer: Historical sales information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.
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Property Description
Welcome to 18 Congress Street set in the heart of Market Square in historic downtown Portsmouth. This building is one of the only modern luxury condominium residences located directly within the historic core of the city. From this address you have easy access to the waterfront, renowned restaurants, charming cafés, boutique shops, and cultural landmarks such as The Music Hall and Jimmy's Jazz & Blues Club. Whether you're grabbing morning coffee at Popovers or La Maison Navarre, you'll be surrounded by the best of city living from the moment your day begins. This 3rd floor residence offers an open-concept living space filled with natural light, charming views of quiet Porter Street, & a gas fireplace for cozy evenings. Two spacious bedrooms and two full bathrooms provide comfort and privacy, while a 3rd small room offers an opportunity for an office space or large walk-in closet or pantry. Everyday convenience is built in with in-unit laundry, secure elevator access, and one deeded parking space in the private garage. Residents also enjoy access to the rooftop deck which is perfect for entertaining, taking in the skyline, or watching Portsmouth's fireworks. Updates include fresh interior paint, new kitchen appliances, & new carpet. Opportunities to own in this building are few and far between - Don't miss the chance to make this one-of-a-kind downtown home part of your everyday life.
Full Property Details
Full Property Details for 18 Congress Street #308
General
- Price: $1,195,000
- Taxes: $14,111
- Status: Active
- Type: Condo
- Source: PrimeMLS
- MLS ID: 5078424
- Updated: 3/6/2026
- Added to Site: Today
Interior
- Number of Rooms: 4
- Interior Features: Gas Fireplace, 1 Fireplace, Primary BR w/ BA, Natural Light, 1st Floor Laundry
- Fireplace: Yes
- Appliances: Dishwasher, Dryer, Microwave, Refrigerator, Washer, Electric Stove
- Flooring: Carpet, Hardwood, Tile
Rooms
Bathrooms
- Total Bathrooms: 2
- Full Bathrooms: 2
Bedrooms
- Total Bedrooms: 2
Exterior
- Color: Brick
Parking
- Garage: Yes
- Garage Spaces: 1
- Parking: Direct Entry, Assigned, Deeded, Garage, On-Site, Parking Spaces 1, Underground, Covered
Location
- County: Rockingham
School Information
- School District: Portsmouth
- Elementary School: Little Harbor School
- Middle School: Portsmouth Middle School
- High School: Portsmouth High School
Heating & Cooling
- Cooling Type: Central AC
- Heating Type: Natural Gas, Forced Air
Utilities
- Sewer: Public
Structural Information
- Construction Status: Existing
- Roof: Asphalt Shingles
- Stories/Levels: 1
- Square Feet: 1,253
- Finished Total: 1,253 Sq. Ft.
- Finished Above Grnd: 1,253 Sq. Ft.
- Year Built: 2006
Unit Information
- Units in Building: 24
Lot Features
- Frontage: TBD
- Driveway/Sidewalk: Other
- Zoning: CBB
Financial Considerations
- Price Per Sq. Ft.: $953.71
- Other Fee: Fee 1: $525, Fee 2: $1050
- Other Fee Type: Fee 1 Includes: Condo Association Fee, Landscaping, Sewer, Trash, Water, Fee 2 Includes: Buy In Fee
- Other Fee Freq.: Fee 1 Frequency: Monthly, Fee 2 Frequency: One-Time
- Tax Amount: $14,111
Disclosures and Reports
- Block: 37
- Lot Number: 308
Listed by KW Coastal and Lakes & Mountains Realty/Portsmouth, Erin Proulx
We Value Your Privacy
We Value Your Privacy
We Value Your Privacy
Listed by KW Coastal and Lakes & Mountains Realty/Portsmouth, Erin Proulx
Listing agent
— 18 Congress Street #308 —
Erin Proulx
KW Coastal and Lakes & Mountains Realty/Portsmouth
Erin@ProulxRealEstate.com
NMLS#: 1598647Get Pre-Approved Today
Schools
Schools serving 18 Congress Street #308
School District:Portsmouth School District, Portsmouth, NH
| Name | Grades | Distance |
|---|---|---|
Little Harbour School 50 Clough Drive, Portsmouth, NH 03801 | K-5 | 0.7 mi |
Disclaimer:
School attendance boundaries provided by Pitney Bowes and are for reference only. Contact the school directly to verify enrollment eligibility.
Price & Sales History for 18 Congress Street #308
Tax History
Tax History for 18 Congress Street #308
Year
Property Taxes
Change
Tax Assessment
Change
2024
$13,707
26%
$1,226,000
82%
2023
$10,860
6%
$673,300
—
2022
$10,234
1%
$673,300
—
2021
$10,120
2%
$673,300
—
2020
$9,898
-1%
$673,300
—
2019
$10,005
-6%
$673,300
—
2018
$10,630
3%
$671,100
—
2017
$10,322
—
$671,100
—
Disclaimer: Historical tax information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.
Estimate the Cost
Estimate the Cost for 18 Congress Street #308
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18 Congress Street #308, Portsmouth, NH 03801 (MLS# 5078424) is a Condo property with 2 bedrooms and 2 full bathrooms. 18 Congress Street #308 is currently listed for $1,195,000 and was received on March 06, 2026. Want to learn more about 18 Congress Street #308? Do you have questions about finding other Condo real estate for sale in Portsmouth? You can browse all Portsmouth real estate or contact a Coldwell Banker agent to request more information.