Commercial Real Estate Market in Portsmouth, NH
Updated monthly: sale, lease, property records, location trend, and more… · Last update: August 31
168 active listings and 1,337 off-market properties in Portsmouth, NH. Commercial property asks $639/SF to buy and $18.02/SF/Yr to lease.
Market Trends
Portsmouth, NH spans 23.8 square miles in Rockingham County, New Hampshire. Figures below refresh monthly; last updated 31 August 2026.
Office
Office space in Portsmouth, NH asks $22.56/SF/Yr to lease. Vacancy runs 19.9% across the Northeast region in 2025, up from 13.1% in 2019.
Average Lease Price $/SF/Yr
Listings
Vacancy Rate % in Northeast region
Retail
Retail vacancy in Portsmouth, NH runs 6% across the Northeast region in 2025, little changed from 6% in 2019. Down from a 2020 peak of 7.1%.
Vacancy Rate % in Northeast region
Industrial
Industrial vacancy in Portsmouth, NH runs 7.6% across the Northeast region in 2025, up from 5.4% in 2019. Nearly 2.4x the 2021 low of 3.2%.
Vacancy Rate % in Northeast region
Multifamily
Multifamily space in Portsmouth, NH asks $365/SF to buy. Vacancy runs 5.6% across the Northeast region in 2025, up from 4% in 2022.
Average Sale Price $/SF
Listings
Vacancy Rate % in Northeast region
Zoning & Land Use
Land Use Mix share of zoned land by category
- Residential 41.5%
- Civic 29.6%
- Industrial 11.8%
- Commercial 5.7%
- Special 4.3%
- Mixed use 3.3%
- Open space 0.9%
Largest Zones share of zoned land by district
Single Residence B
Natural Resource Protection
Single Residence A
Gateway Corridor
Municipal
Natural Resource Protection (NRP)
Protection NRP To recognize areas that are in governmental or nonprofit ownership and are dedicated to protection and enhancement of the City’s natural resources and ecology. Transportation Corridor TC To provide for future transportation uses and related facilities as well as recreational trail use.
Market overview
Demographics & Economy
Portsmouth, NH has 22,767 residents in 11,448 households. Density runs 958 people per square mile. Median household income here is $106,520 and median gross rent $1,783 a month.
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
958
Density / Sq Mi
$106,520
Median Household Income
$65,984
Median Earnings
$1,783
Median Rent
$647,500
Median Home Value
Tools
Nearby Markets
| Market | Average Sale Price, $/SF | Average Lease Price, $/SF/Yr |
|---|---|---|
| Greenland | — | — |
| Rye | — | — |
| Rye Beach | — | — |
| North Hampton | — | $15.46 |
Commercial property in Portsmouth, NH asks $639/SF.
Frequently Asked Questions
What is the average price per square foot for commercial property in Portsmouth?
Commercial property in Portsmouth, NH asks an average of $639 per square foot. The 6 most recent recorded sales traded at a median of $446/SF, so asking sits 43% above the achieved median. Multifamily carries the highest asking price at $365/SF.
How much does it cost to lease commercial space in Portsmouth?
Asking lease rates in Portsmouth, NH average $18.02 per square foot per year. Office asks $22.56/SF/Yr as of Q1 26, up from $13.06/SF/Yr in Q4 25.
Where does Realmo's Portsmouth market data come from?
Realmo compiles Portsmouth, NH figures from 7 recent recorded sales, 50 active sale listings, 118 active lease listings, 1,337 tracked off-market properties, the current Portsmouth zoning release. Sale and lease figures refresh monthly; vacancy annually. Last updated 31 August 2026.
Methodology & data sources
- Asking prices and averages
- Computed from 50 active for-sale and 118 active for-lease listings in Portsmouth, NH. These are ASKING figures from live listings, not closed-transaction prices, and a segment carried by a handful of listings reads as indicative rather than an average.
- Vacancy rates
- Published per-sector market series, taken at the metro level where one exists and otherwise at the Census-region level — a chart reading "in <region> region" is a regional number, not this city's.
- Zoning and land use
- The current municipal zoning release: 9,547 zoned acres across 29 districts. Shares are of zoned land, so parcels the release leaves unclassified are excluded from the mix.
- Refresh
- The monthly aggregates close at the end of the previous month, so 31 August 2026 — not today — is the honest last update.
- Known limitations
- office vacancy is reported at Northeast region level, retail vacancy is reported at Northeast region level and industrial vacancy is reported at Northeast region level.
- Coverage
- Metrics below the 10-observation threshold fall back one geographic level. The geography used is named on each figure.
Compiled by the Realmo Data team · reviewed 31 August 2026 · report a data issue
