55 Constitution Avenue

OfficeMixed use

55 Constitution Avenue, Portsmouth, NH 03801

11 photos
Listings
Sale
For Sale · Office
Active
Available SF
815 SF
Asking Price
$158,000
Price/SF
Cap Rate
List Date
Jun 24, 2026
Days on Market
6

815± SF retail/office condominium available for sale off highly trafficked Lafayette Road/Route 1. Unit consists of 495± SF on the 1st floor with an additional 320± SF of finished lower-level space for storage. Great space for professionals…

Property Highlights

Location

County
Rockingham
Submarket
Boston-Cambridge-Quincy
Center/Park Name

Building Size

Total Building SF
12,150 SF
Rentable SF
Land (SF)
71,587 SF
Acreage
1.64 Acres
Number of Buildings
1
Floors
2

Building Details

Type
Office
Subtype
Mixed use
Building Class
Class C
Building Status
Existing
Year Built
1985
Year Renovated
2024
Construction
Occupancy Type
Multi-tenant
Leased
Zoning
G1
Sprinklered
Parking Ratio
Elevators
Condominiumized
No
Exterior
Clear Height Max
Dock High Doors
Grade Level Doors
Rail Service
No

Land & Utilities

Lot Width
Lot Depth
Electric
No
Water
Yes, City
Sewer
Yes, City
Gas
Yes
Fiber
Tax Amount
Tax Year
Comparables
Comparable sales and lease data is available to members only.
Location