- Type
- Lease
- Status
- Active
- Asking Rate
- $28.00/SF NNN
- Lease Type
- Triple net
- List Date
- Jul 20, 2026
- Days on Market
- 35
- Owner Occupied
- No
- Last Verified
- Aug 24, 2026
- Agent Ownership Interest
- No
100 Borthwick Ave.
Quality office spaces ranging from 900± SF to 2,215± SF, offering flexible options with layouts consisting of private offices, open collaborative space, conference rooms, and kitchenettes. Neighboring Borthwick Avenue tenants include Portsmouth Regional Hospital, Liberty Mutual, Highliner Foods, and numerous medical users. • Ample on-site parking • On-site 8,000± SF Ambulatory Surgery Center (ASC) • Conveniently located directly off US Route 1 and Exit 3 of I-95 • Generous Tenant Improvement Allowance of up to $75.00/SF
Space Details
- Available SF
- 900 – 2,215 SF
- Primary Use
- Office
- Type
- Office
- Subtype
- General
- Building Class
- Class B
- Size
- 47,745 SF
- Number of Units
- 1
- Acreage
- 8 Acres
- Occupancy Type
- Multi Tenant
- Year Built
- 1978
- Floors
- 2
- Zoning
- OR
- County
- Rockingham
- Submarket
- Apt,PM,0
- Type
- Lease
- Status
- Active
- Asking Rate
- $28.00/SF NNN
- Lease Type
- Triple net
- List Date
- Jul 20, 2026
- Days on Market
- 35
- Owner Occupied
- No
- Last Verified
- Aug 24, 2026
- Agent Ownership Interest
- No
100 Borthwick Ave.
Quality office spaces ranging from 900± SF to 2,215± SF, offering flexible options with layouts consisting of private offices, open collaborative space, conference rooms, and kitchenettes. Neighboring Borthwick Avenue tenants include Portsmouth Regional Hospital, Liberty Mutual, Highliner Foods, and numerous medical users. • Ample on-site parking • On-site 8,000± SF Ambulatory Surgery Center (ASC) • Conveniently located directly off US Route 1 and Exit 3 of I-95 • Generous Tenant Improvement Allowance of up to $75.00/SF
Space Details
- Available SF
- 900 – 2,215 SF
- Primary Use
- Office
- Type
- Office
- Subtype
- General
- Building Class
- Class B
- Size
- 47,745 SF
- Number of Units
- 1
- Acreage
- 8 Acres
- Occupancy Type
- Multi Tenant
- Year Built
- 1978
- Floors
- 2
- Zoning
- OR
- County
- Rockingham
- Submarket
- Apt,PM,0