18 Congress Street, Unit 302Portsmouth, NH 03801MLS Number 5105594

  • Price: $2,999,999
  • Est. Mortgage of $/month
  • 0 Day on Market
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%
$/month over payments
Federal 30-year interest rate: 6.67% last updated on Aug 13, 2026
* All Figures are estimates. Check with your bank or proposed mortgage company for actual interest rates.
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18 Congress Street Portsmouth NH 0380118 Congress Street Portsmouth NH 0380118 Congress Street Portsmouth NH 0380118 Congress Street Portsmouth NH 0380118 Congress Street Portsmouth NH 0380118 Congress Street Portsmouth NH 0380118 Congress Street Portsmouth NH 0380118 Congress Street Portsmouth NH 0380118 Congress Street Portsmouth NH 0380118 Congress Street Portsmouth NH 0380118 Congress Street Portsmouth NH 0380118 Congress Street Portsmouth NH 0380118 Congress Street Portsmouth NH 0380118 Congress Street Portsmouth NH 0380118 Congress Street Portsmouth NH 0380118 Congress Street Portsmouth NH 0380118 Congress Street Portsmouth NH 0380118 Congress Street Portsmouth NH 0380118 Congress Street Portsmouth NH 0380118 Congress Street Portsmouth NH 0380118 Congress Street Portsmouth NH 0380118 Congress Street Portsmouth NH 0380118 Congress Street Portsmouth NH 0380118 Congress Street Portsmouth NH 03801
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  • 3Bedrooms
  • 3Bathrooms
  • 2006Year Built
  • 2,195Square Feet

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Listed by Anna Friedman of Carey Giampa,LLC/Rye (Phone: 207-999-1116)
Welcome to an extraordinary opportunity for elevated downtown living in the heart of Portsmouth. Residence 302 at 18 Congress Street is a rare, oversized double unit condo offering an exceptional sense of scale, privacy, and sophistication, with a front row seat to the energy and charm of Market Square. Wrapped in an impressive thirteen celestial windows, this expansive residence is filled with natural light from multiple exposures, creating a bright and airy atmosphere throughout. The main living area features beautiful hardwood floors and vaulted ceilings, complemented by large windows overlooking Market Square, custom built in bookcases, and a gas fireplace. The result is a gracious living and dining space equally suited to intimate evenings or sophisticated entertaining.The beautifully appointed chef's kitchen offers generous workspace and storage. The oversized primary suite provides a luxurious private retreat, enhanced by vaulted ceilings, abundant natural light, 3 walk-in closets, and a spa like en-suite bath featuring a jetted soaking tub. Two more spacious bedrooms with their own full bath, as well as an additional room for a den or home office. In unit laundry adds everyday convenience, and a gorgeous rooftop deck for an exceptional setting to entertain, relax, or simply enjoying the sunrise and sunsets of downtown Portsmouth. Two deeded, on-site secure and temperature controlled garage parking spaces, additional private storage, and elevator access directly from the garage to the third-floor residence further distinguish this remarkable property. Perfectly positioned to enjoy Portsmouth's acclaimed restaurants, boutique shopping, galleries, entertainment, and historic charm, this exceptional double unit residence combines the space and amenities of a luxury home with the unparalleled convenience of downtown living. A rare offering of scale and distinction, your private front row seat to all that Portsmouth has to offer.

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Tax Information

  • Tax Year2025

Building

  • Disability Features1st Floor 1/2 Bathroom,1st Floor Bedroom,1st Floor Full Bathroom,1st Floor Hrd Surfce Flr,1st Floor Laundry, Access to Common Areas, Access to Parking, Mailbox Access w/No Steps, No Stairs from Parking, One-Level Home, Paved Parking
  • Year Built2006
  • ConstructionBrick Exterior
  • GarageYes
  • Garage Spaces2
  • Unit Number302
  • Total Rooms7
  • FoundationConcrete

Exterior

  • RoofArchitectural Shingle, Membrane

Utilities

  • ElectricCircuit Breaker(s)
  • WaterPublic
  • Heating CoolingNatural Gas, Forced Air, Gas Fireplace
  • Equipment AppliancesAir Conditioner
  • SewerPublic
  • UtilitiesCable, Gas On-Site

Rooms

  • Full Bath2

Location

  • TownPortsmouth
  • StateNH
  • Zip03801
  • CountyRockingham
  • ZoningCBB
  • Map117
  • Flood ZoneNo
  • Address18 Congress Street

Property

  • AreaNH-Rockingham
  • Property TypeCondo
  • Road FrontageTBD
  • DrivewayPaved
  • Lot302
  • RoadsPublic
  • Lot DescriptionCity Lot, Sidewalks, Near Shopping, Near Public Transport, Near School(s)

Amenities

  • PetsBreed Restrictions, Yes
  • PricePerSqFt1366.74

Basic Information

  • List Price$2,999,999
  • Virtual TourView Tour
  • Square Feet2,195
  • StatusACT
  • Bedrooms3
  • Bathroom3
  • Half Bath1
  • StyleHigh Rise
  • New ContructionExisting
  • MLS Number5105594
  • MLS StatusActive

Interior

  • FloorsCarpet, Hardwood, Tile
  • Interior FeaturesCentral Vacuum, Gas Fireplace,1 Fireplace, Kitchen Island, Primary BR w/ BA, Security Door(s), Soaking Tub, Vaulted Ceiling, Walk-in Closet,1st Floor Laundry
  • Stories1

Other

  • Fee IncludesCondo Association Fee, Plowing, Trash
  • HOA Fee$879
  • Date Price Change08/18/2026
  • Taxes$25,919
  • FrequencyMonthly
  • Unadjusted TaxesNo
  • SurveyedUnknown
  • SeasonalNo
  • Time ShareNo
  • Association AmenitiesBuilding Maintenance, Common Heating/Cooling, Elevator(s), Security, Snow Removal, Trash Removal
  • Date Listed08/19/2026
Coldwell Banker Dinsmore Associates
Office: 603-898-9038
115 Indian Rock Road
Windham, NH 03087

Portsmouth, NH Demographics

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Portsmouth, NH Real Estate Market Data

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Portsmouth, NH Schools

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Copyright 2026 PrimeMLS, Inc. All rights reserved. This information is deemed reliable, but not guaranteed. The data relating to real estate displayed on this display 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. Data last updated August 19, 2026 7:08 AM UTC

 

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