100 Borthwick Ave

Office

100 Borthwick Ave, Portsmouth, NH 03801

100 Borthwick Ave
Office For Lease
Asking
$28.00/SF NNN
Available
8,725 SF
Listing Details
Type
Lease
Status
Active
Asking Rate
$28.00/SF NNN
Lease Type
Triple net
List Date
Oct 2, 2024
Days on Market
636
Owner Occupied
No
Last Verified
Jun 26, 2026

100 Borthwick Ave.

Quality office spaces ranging from 900± SF to 5,610± SF, offering flexible layouts that include private offices, open collaborative areas, conference rooms, and kitchenettes. Join a thriving professional corridor—neighboring tenants include Portsmouth Regional Hospital, Liberty Mutual, Highliner Foods, and a variety of medical users. Highlight Bullets: • Ample on-stie parking • Excellent visibility and signage potential • Generous Tenant Improvement Allowance of $75.00/SF

Space Details

Available SF
8,725 SF
Primary Use
Office
Property Highlights
View full property →
Type
Office
Subtype
General
Building Class
Class B
Size
47,745 SF
Acreage
8 Acres
Occupancy Type
Multi Tenant
Year Built
1978
Floors
2
Zoning
OR
County
Rockingham
Submarket
Apt,PM,0
Contact
KW
Kent WhitePrimary
The Boulos Company
CB
Caitlin Burke
The Boulos Company
Attachments
Location