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 courtesy of Kent White of The Boulos Company



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Last checked: 2026-04-22 09:33 AM UTC