Photo of 501 Islington Street
Class B Office · General

501 Islington Street

Portsmouth, NH 03801

Available spaces

1 for lease · asking rates · updated Aug 28, 2026

Suite 3 at 501 Islington St.

Suite 3

$15.00/SF/yr NNN
Size 8,644 SFAvailable Now≈ Monthly $10,805

Office suite available for lease in downtown Portsmouth on the recently improved Islington Street. Suite 3 is 8,644+/- on the 3rd floor and is comprised of 5 private offices, 4 conference rooms, reception area, open cubicle area, a secure data room, 4 restrooms, and a kitchen/breakroom. CAM expenses include water, sewer, heat, and air conditioning; electric usage is separately metered and paid by Tenant. Monument and directory signage is available. Within walking distance to downtown and the West End and just 1.5 miles from I-95 and Route 16.

The building

Building
37,173 SF · 3 floors
Site
1.26 Acres · CD4-L2 zoning
Occupancy
Multi-tenant
Submarket
Boston-Cambridge-Newton

Comps

Comparable sales and lease data is available to members only.
TB
Timothy Braseth · Colliers