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40 Congress St, Portsmouth, NH 03801
40 Congress St, Portsmouth, NH 03801
40 Congress St, Portsmouth, NH 03801
40 Congress St, Portsmouth, NH 03801

40 Congress St Portsmouth, NH 03801

$12,500,000

ACTIVE
Beds
Baths
Sqft
Acres
Year
1878
Days on Site
1
Property Type
Commercial Sale
Sub Type
Per Square Foot
$12,500,000
Date Listed
Apr 21, 2026

Description of 40 Congress St, Portsmouth, NH 03801

Listing details for 40 Congress St, Portsmouth, NH 03801 : 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.
Listing Updated : 04-21-2026 at 5:05 PM EDT
Source

PrimeMLS, MLS#: 5084657

Home Worth Check

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