Single-Unit Office
For Sale
$550,000
330 Borthwick Ave Unit 210, Portsmouth, NH 03801
Single-unit office property offering 2,132 SF for sale.
Property Size2,132 SF
Price / SF$257.97
Days on Market85
Property Features for 330 Borthwick Ave Unit 210
General Information
Standard status
Active
Size
2,132 SF
Additional Details
Office Units
1
Building Details
Year Built
1986
Listing Agency:
Duston Leddy Real Estate
Listed By:
Peter Montesanto · License #291411
(617) 448-0072
Source:
Lyvrealty
Added: Jul 27
Changed: Oct 11
Last Checked: Oct 7 at 4:13PM
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 Duston Leddy Real Estate
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Investment Insights
Based on property information with market context.
This for-sale office property consists of 1 unit totaling 2,132 SF. The space is configured as a single office offering for an owner-occupant or tenant seeking one dedicated unit.
Located at 330 Borthwick Avenue in Portsmouth, NH 03801, the property is presented for sale as a straightforward office asset with a defined, single-unit footprint.
Located at 330 Borthwick Avenue in Portsmouth, NH 03801, the property is presented for sale as a straightforward office asset with a defined, single-unit footprint.
Key Highlights
- Single‑unit office property for sale offering 2,132 SF
- Built in 1986
Financial Insights
Estimated NOI and Cap Rate
NOI / Yr
$36,599
Cap Rate
6.65%
Suggested Prices Based on Cap Rates
Cap Rate 5%
$731,980
$732.0K
Cap Rate 7%
$522,843
$522.8K
Cap Rate 9%
$406,656
$406.7K
Market Conditions
NOI Build-Up for 2,132 SF
Gross rent
$56.3K $26.40/SF
− Vacancy
−$7.5K −$3.51/SF
EGI
$48.8K $22.89/SF
− OpEx
−$12.2K −$5.72/SF
NOI
$36.6K $17.17/SF
Area
Rockingham County, NH
Vacancy
13.30%
Lease Rate
$26.40 /SF/Yr
Expense Ratio
25.00%
Simulate Cap Rate and NOI
Suggested Prices Based on Cap Rates
Cap Rate 5%
$731,980
Cap Rate 7%
$522,843
Cap Rate 9%
$406,656
Alternative Uses
Best Use
Office B
$522.8K
$457.5K – $610.0K
NOI $36,599 @ 7.0% cap · market cap 6.65%
Second Best
—
—
no second resolved use
Theoretical Best
Office A
$709.8K
$621.1K – $828.1K
NOI $49,686 @ 7.0% cap · market cap 9.03%
Zoning and permitted uses should be independently verified with authorities.
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Property Analytics
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Current Use
Lease Details
1
Office units
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
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Cap Rate, Value Estimation, Potential NOI and more
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Market
Vacancy Rate% for Office in Northeast region
Frequently Asked Questions
What type of property is this?
Office unit - Single-unit office property offering 2,132 SF for sale.
Where is this office unit located?
The property is located at 330 Borthwick Ave Unit 210 Portsmouth, NH.
What is the asking price?
The asking price for this property is $550,000.
What are key features of this property?
This property features: Single‑unit office property for sale offering 2,132 SF; Built in 1986
