18 Congress Street

Multi-FamilyMixed use

18 Congress Street, Portsmouth, NH 03801

12 photos
Listings
Sale
For Sale · Multi-Family
Active
Available SF
2,424 SF
Asking Price
$1,950,000
Price/SF
Cap Rate
6.53%
Suite
Suite 207
Floor
2
List Date
Mar 11, 2026
Days on Market
111

Single-tenant Class A office condominium (2,424 SF) in downtown Portsmouth’s iconic Market Square. Suite 207 is located on the second floor of a premier mixed-use building developed in 2006, with one deeded garage parking space. Leased to…

Property Highlights

Location

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

Building Size

Total Building SF
32,955 SF
Rentable SF
Land (SF)
14,399 SF
Acreage
0.33 Acres
Number of Buildings
1
Floors
4

Building Details

Type
Multi-Family
Subtype
Mixed use
Building Class
Building Status
Existing
Year Built
Year Renovated
Construction
Masonry
Occupancy Type
Multi-tenant
Leased
Zoning
CD5
Sprinklered
Parking Ratio
Elevators
Condominiumized
Yes
Exterior
Brick
Clear Height Max
Dock High Doors
Grade Level Doors
Rail Service
No

Land & Utilities

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