Downtown Office Suite with
For Lease
Contact for pricing
501 Islington St, Portsmouth, NH 03801
Third-floor suite offers reception, private offices, conference rooms, and a secure data room, with separately metered electric.
Property Size8,644 SF
Days on Market259
Property Features for 501 Islington St
General Information
Standard status
Active
Size
8,644 SF
Property subtype
OFFICE
Additional Details
Highway Access
Yes
Amenities
conference room
secure data room
kitchen/breakroom
monument signage
directory signage
Listing Agency:
Colliers
(310) 720-9994
Listed By:
Timothy Braseth · License #NH 067085
(310) 720-9994
Source:
Moodyscre
Added: Nov 15, 2025
Changed: Jul 25
Last Checked: Aug 1 at 9:25AM
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 Colliers
Investment Insights
Based on property information with market context.
Office suite for lease in downtown Portsmouth at 501 Islington St, on the recently improved Islington Street. Suite 3 is located on the 3rd floor and provides a reception area, open cubicle area, five private offices, four conference rooms, a secure data room, four restrooms, and a kitchen/breakroom.
CAM expenses include water, sewer, heat, and air conditioning, while electric usage is separately metered and paid by the tenant. Monument and directory signage are available.
The suite is within walking distance to downtown and the West End, and is approximately 1.5 miles from I-95 and Route 16, supporting convenient access for daily operations.
CAM expenses include water, sewer, heat, and air conditioning, while electric usage is separately metered and paid by the tenant. Monument and directory signage are available.
The suite is within walking distance to downtown and the West End, and is approximately 1.5 miles from I-95 and Route 16, supporting convenient access for daily operations.
Key Highlights
- Downtown Portsmouth office suite for lease on newly improved Islington Street
- Suite 3 is 8,644+/- SF on the 3rd floor
- Layout includes reception, 5 private offices, 4 conference rooms, and open cubicle area
Property Analytics
Current Use
Lease Details
Yes
Highway access
NNN (Triple Net)
Lease Type
$2.25 /SF/Yr
CAM
Location Intelligence
Trade Area within ½ mile
2,435
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
Market
Lease Benchmarks for Portsmouth, NH
$17.85 /SF/Yr
Avg Asking Price
$0.58–$44.92 /SF/Yr
Price Range
8,549 SF
Avg Space Size
This space is priced 16% below the average of $17.85 /SF/Yr.
Vacancy Rate% for Office in Northeast region
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Frequently Asked Questions
What type of property is this?
Office units - Third-floor suite offers reception, private offices, conference rooms, and a secure data room, with separately metered electric.
Where is this office units located?
The property is located at 501 Islington St Portsmouth, NH.
What is the lease rate?
The lease rate is $15 SF/Yr.
What are key features of this property?
This property features: Downtown Portsmouth office suite for lease on newly improved Islington Street; Suite 3 is 8,644+/- SF on the 3rd floor; Layout includes reception, 5 private offices, 4 conference rooms, and open cubicle area
