- For Sale $12,500,000
- Property Type Office - General Office
- Property Size 22,601 SF
- Lot Size 0.09 Acre
- Property Tenancy Multi-Tenant
- Building Class A
- Year Built 1878
- Year Renovated 2024
- Date Updated Apr 24, 2026
Description
Located in the heart of downtown PortsmouthLocated 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.
Highlights
- 22,601± SF boutique commercial building with flexible CD5 zoning
- High-demand area with strong surrounding demographics and limited supply
- Potential for mixed-use or residential conversion on upper floors
- Prime downtown Portsmouth location within the Historic District, steps from Market Square
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Contacts
Kent White
The Boulos Company
Location
Located at 40 Congress St, Portsmouth, NH 03801, this property is part of the Haymarket Square neighborhood and Boston market.
Contact Listing Broker
Kent White
The Boulos Company
