40 Congress StreetPortsmouth, NH 03801MLS Number 5084657

  • Price: $12,500,000
  • 24 Days on Market
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Federal 30-year interest rate: 6.37% last updated on May 7, 2026
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40 Congress Street Portsmouth NH 0380140 Congress Street Portsmouth NH 03801
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  • 1878Year Built
Listed by Kent White of The Boulos Company

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Located in the heart of downtown Portsmouth, 40 Congress Street offers a rare opportunity to own a boutique commercial asset in one of New England's most dynamic and historic markets. The 22,601± SF property sits on a 0.09± acre parcel and is zoned CD5 (Character District 5), allowing for a variety of commercial, office, and mixed-use uses including a possible residential conversion on the upper floors. Positioned within Portsmouth's vibrant Downtown Historic District and just steps from Market Square, the property benefits from exceptional walkability, strong surrounding demographics, and limited supply. 40 Congress Street offers a well-located asset with versatile use potential and strong long-term value. For more information, a signed NDA is required.

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Tax Information

  • Tax Year2026

Building

  • Year Built1878
  • Available Sqft22,601
  • BasementFinished

Property

  • Property TypeCommercial Sale
  • AreaNH-Rockingham

Other

  • Date Listed04/21/2026
  • View Count6

Basic Information

  • StatusACT
  • Modification Date04/21/2026
  • TypeInvestment, Office, Retail
  • List Price$12,500,000
  • Broker NameThe Boulos Company
  • Listing Agent NameKent White
  • Lister Office NameThe Boulos Company
  • MLS Number5084657
  • MLS StatusActive

Location

  • Building Number40
  • StreetCongress Street
  • TownPortsmouth
  • StateNH
  • Zip03801
  • CountyRockingham
  • Map117
  • Address40 Congress Street

Legal

  • OtherStructuresLand/Building
  • ZoningCD5
Ruedig Realty

Your Local Office

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Ruedig Realty
Office: 603-228-1947
125 N. State Street
Concord, NH 03301
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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 May 14, 2026 3:24 PM EDT

 

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