For Lease
$28 SF/Yr
100 Borthwick Ave, Portsmouth, NH 03801
Office Units
Space Size900 SF - 2,215 SF
Property Size47,745 SF
Days on Market169
Property Features for 100 Borthwick Ave
General Information
Standard status
Active
Size
900 SF - 2,215 SF
Class
A
Property subtype
Office
Lease Term
NNN
Building Details
Building Size
47,745 SF
Year Built
1978
Spaces For Lease
at 100 Borthwick Ave Contact us- Size
- 900 SF
- Type
- Office Building
- Term
- Negotiable
(Suite 180) 100 Borthwick Ave., Portsmouth, NH (copy) $28/SF/Yr
- Size
- 2,215 SF
- Type
- Office Building
- Term
- Negotiable
(Suite 250) 100 Borthwick Ave., Portsmouth, NH $28/SF/Yr
Listing Agency:
Boulos Company
Listed By:
Kent White · License #052480
(603) 781-6546
Source:
Boulos
Added: Mar 26
Changed: Sep 8
Last Checked: Sep 10 at 7:22AM
Displayed information is deemed reliable but is not guaranteed and should be independently verified. All listing content including descriptions, pricing, images are the copyrighted material of Boulos Company
Investment Insights
Based on property information with market context.
Key Highlights
- Flexible office spaces ranging from 2,215± SF to 7,433± SF.
- Convenient location directly off US Route 1 and Exit 3 of I‑95.
- Located in a thriving professional corridor.
Property Analytics
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Open Analytics
Current Use
Lease Details
NNN (Triple Net)
Lease Type
$4.20 /SF/Yr
CAM
Location Intelligence
Trade Area within ½ mile
749
Businesses Nearby
Explore this area
Business Placement
Demographics for 03801, NH
22,767
Population
11,448
Households
2
Avg Household Size
43
Median Age
63%
College-Educated
98%
High-School Grad
23.8 sq mi
ZIP Area
957
Density / Sq Mi
$106,520
Median Household Income
$65,984
Median Earnings
$1,783
Median Rent
$647,500
Median Home Value
Check the figures for this property
Cap Rate, Value Estimation, Potential NOI and more
View Realmo Analytics
Market
Lease Benchmarks for Portsmouth, NH
$18.66 /SF/Yr
Avg Asking Price
$1.11–$37 /SF/Yr
Price Range
9,856 SF
Avg Space Size
This space is priced 50% above the average of $18.66 /SF/Yr.
Vacancy Rate% for Office in Northeast region
Questions? Ask Rey
Realmo’s AI knows this listing — price, zoning, demand, history. Ask anything.
Frequently Asked Questions
Where is this office units located?
The property is located at 100 Borthwick Ave Portsmouth, NH.
What is the lease rate?
The lease rate is $28 SF/Yr.
What are key features of this property?
This property features: Flexible office spaces ranging from 2,215± SF to 7,433± SF.; Convenient location directly off US Route 1 and Exit 3 of I‑95.; Located in a thriving professional corridor.
