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Listed by Anna Friedman of Carey Giampa,LLC/Rye (Phone: 207-999-1116)

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18 Congress Street, Unit 302Portsmouth, NH 03801Price: $2,999,999

  • Price: $2,999,999
  • Est. Mortgage of $/month
  • 0 Day on Market
$
$
%
$/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.
This product uses the FRED® API but is not endorsed or certified by the Federal Reserve Bank of St. Louis.
  • $2,999,999List Price
  • 3Bedrooms
  • 3Bathrooms
  • 2,195Square Feet

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Moultonborough Office

Moultonborough Office

12 Whittier Highway,
Moultonborough, NH 03254
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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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 18, 2026 10:37 PM UTC

 

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Est. Mortgage:
$/month over payments
Federal 30-year interest rate: 6.67% last updated on Aug 13, 2026. * The above figures are estimates provided by Union Street Media using the FREDĀ® API, and are not endorsed or certified by the Federal Reserve Bank of St. Louis. Check with your lender for actual interest rates.

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