38 Office Spaces for Rent in Portsmouth, NH

Find your best Portsmouth, NH office space among 38 for rent listings, which average an asking price of $28.95 per square foot.

Office Market FAQs

426 Middle Street

426 Middle Street, Downtown Portsmouth, Portsmouth, NH
Property

Office

640 SF
Availability

1 Space

640 SF
Year Built

1830
For Lease

$1,850.00/MO
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215 Commerce Way

215 Commerce Way, Wentworth Acres, Portsmouth, NH
Property

Office

40,000 SF
Availability

1 Space

12,336 SF
Year Built

1990
For Lease

$16.50/SF/YR
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233 Vaughan Street, Unit 102, Portsmouth, NH

233 Vaughan St Ste 102, North Mill Pond, Portsmouth, NH
Property

Office

5,606 SF
Availability

1 Space

800 SF
Year Built

2015
For Lease

$2,350.00/MO
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Portsmouth Office Park - 230 Commerce Way

230 Commerce Way, Wentworth Acres, Portsmouth, NH
Property

Office

50,400 SF
Availability

1 Space

4,930 SF
Year Built

1997
For Lease

$18.50/SF/YR
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145 Maplewood Avenue

145 Maplewood Avenue, North Mill Pond, Portsmouth, NH
Property

Office

73,731 SF
Availability

3 Spaces

12,802 SF
Year Built

2021
For Lease

$37.00/SF/YR
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40 Pleasant Street (Small Office Suite)

40 Pleasant Street (Second Floor), Haymarket Square, Portsmouth, NH
Property

Office

21,924 SF
Availability

1 Space

587 SF
Year Built

1860
For Lease

$30.00/SF/YR
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Portsmouth
Regus
170 Commerce Way Suite 200, Portsmouth, NH
Services

Virtual Office

Open Workspace

Private Office

Dedicated Desk
Amenities

24/7 security

Access to global network

Business address

Business lounge

Cleaning services

Ergonomic furniture

Lounge area

Mail services

Money-back guarantee

Office furniture
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100 Market Street

100 Market Street, North Mill Pond, Portsmouth, NH
Property

Office

57,455 SF
Availability

6 Spaces

16,685 SF
Year Built

1999
For Lease

$29.00/SF/YR
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5 Greenleaf Woods Drive

5 Greenleaf Woods Drive, Elwyn Park, Portsmouth, NH
Property

Office

720 SF
Availability

1 Space

720 SF
Year Built

1987
For Lease

$1,400.00/MO
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273 Corporate Drive

273 Corporate Drive, Sherburne, Portsmouth, NH
Property

Office

100,000 SF
Availability

1 Space

16,027 SF
Year Built

2001
For Lease

$19.50/SF/YR
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360 Corporate Drive, Portsmouth, NH

360 Corporate Drive, Sherburne, Portsmouth, NH
Property

Office

52,000 SF
Availability

3 Spaces

42,001 SF
Year Built

2025
For Lease

$38.00/SF/YR
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Portsmouth Office Park - 135 Commerce Way

135 Commerce Way, Wentworth Acres, Portsmouth, NH
Property

Office

57,600 SF
Availability

2 Spaces

26,594 SF
Year Built

1990
For Lease

$19.50/SF/YR
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111 New Hampshire Avenue

111 New Hampshire Avenue, Sherburne, Portsmouth, NH
Property

Office

74,134 SF
Availability

1 Space

56,488 SF
Year Built

2007
For Lease

$11.95 - $14.00/SF/YR
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125 Aviation Avenue, Portsmouth, NH

125 Aviation Ave, Sherburne, Portsmouth, NH
Property

Office

65,212 SF
Availability

1 Space

5,320 SF
Year Built

1998
For Lease

$5,000.00/MO
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Jackson Gray Building

330 Borthwick Avenue, Meadowbrook, Portsmouth, NH
Property

Office

55,200 SF
Availability

1 Space

6,366 SF
Year Built

1986
For Lease

$19.75/SF/YR
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Portsmouth Office Park - 210 Commerce Way

210 Commerce Way, Wentworth Acres, Portsmouth, NH
Property

Office

50,400 SF
Availability

2 Spaces

5,026 SF
Year Built

1989
For Lease

$19.50/SF/YR
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Orchard Park

875 Greenland Road, Meadowbrook, Portsmouth, NH
Property

Office

46,098 SF
Availability

1 Space

2,500 SF
Year Built

1985
For Lease

$12.00/SF/YR
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4 Greenleaf Woods Drive- offices

4 Greenleaf Woods Drive, Elwyn Park, Portsmouth, NH
Property

Office

100 SF
Availability

1 Space

1,418 SF
Year Built

1987
For Lease

$1,990.00/MO
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10 Commercial Aly

10 Commercial Aly, North Mill Pond, Portsmouth, NH
Property

Office

6,251 SF
Availability

1 Space

1,869 SF
Year Built

2007
For Lease

$28.89/SF/YR
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2 International Drive

2 International Drive, Sherburne, Portsmouth, NH
Property

Office

88,467 SF
Availability

1 Space

6,000 SF
Year Built

1998
For Lease Contact for pricing
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172 Hanover Street

172 Hanover Street, North Mill Pond, Portsmouth, NH
Property

Office

12,523 SF
Availability

1 Space

1,500 SF
Year Built

1850
For Lease

$22.00/SF/YR
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Pease International Tradeport

325 Corporate Drive, Sherburne, Portsmouth, NH
Property

Office

100,928 SF
Availability

1 Space

100,928 SF
Year Built

2001
For Lease

$17.75/SF/YR
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155 Fleet Street
Ohive
155 Fleet Street, Portsmouth, NH
Services

Virtual Office

Open Workspace

Meeting Room

Private Office

Dedicated Desk
Amenities

Bike storage

Complimentary coffee & tea

Free water

High-speed wifi

Kitchen

Mail services

Parking

Printer

Receptionist/Secretarial services

TV/Monitor
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1950 Lafayette Road
New England Office Space
1950 Lafayette Road, Portsmouth, NH
Services

Meeting Room

Private Office
Amenities

Beverage services

Business address

Directory listing

High-speed wifi

Kitchen

Mail services

Parking

Printer

Utilities included
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7 Portwalk Place
Portwalk Place Cowork
7 Portwalk Place, Portsmouth, NH
Services

Open Workspace

Meeting Room

Private Office

Dedicated Desk
Amenities

Business address

Cleaning services

Ergonomic furniture

High-speed wifi

Parking

Premium coffee

Printer
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Modern Office Suite

755 Banfield Rd, Hillcrest, Portsmouth, NH
Property

Office
Availability

1 Space

2,875 SF
Year Built

2003
For Lease

$12.00/SF/YR
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Frequently Asked Questions

Asking prices vary based on the property location, rating, amenities such as proximity to restaurants, cafes, and entertainment venues, as well as convenience of access to public transport, airports, and thoroughfares.

The average rent for office space in Portsmouth is $28.95 per square foot. The minimum rental rate for office space in Portsmouth is $16 per square foot. Among listings of office space currently available for lease in Portsmouth, the maximum rental rate is $30 per square foot.

The most common factor that influences cost of office space in any location is the property class rating. For example, Portsmouth office space rated Class A asks an average of $31.92 per square foot. Class B office space in Portsmouth costs $28.12 per square foot, on average. Listings of office space in Class C buildings asked an average of $26.50 per square foot.

For more details on Portsmouth office space rent and sales prices, as well as overall market quality and new construction data, see Portsmouth Office Market Trends.

Most experts recommend an average of between 75 and 150 square feet of office space per person. However, it is important to keep in mind that how much office space you ultimately need depends on your activity and how you need to use the space, as much as it does on how many people it should accommodate. If you already know what size office would best suit your needs, use the available space size filter at the top of the search page to focus your search on the best fit for you.

You’ll find a home for almost any size of business in Portsmouth, as the local office market offers a wide range of options. Office spaces currently on the market go up to as much as 56,488 square feet in size for an individual listing.
However, there is a variety of differently sized opportunities below that maximum. For your consideration, the median size of an office space for lease in Portsmouth is 3,366 square feet, and the average office space size here is 7,260 square feet.

You can find 38 office listing(s) for lease in Portsmouth, which add up to a total of 262,831 square feet. Availability on the market includes a variety of office use types, such as General Office, Medical Office, Flex Space, Flex - Office, Warehouse/Distribution.

The most common office use type currently available for lease in Portsmouth is General Office, which is offered in 27 or 72.97% of listings. The second-most frequent office use type listed here is Medical Office, which account for 4 or 10.81% of office space currently available.

You can search 1 office sublease listing(s) in Portsmouth, which amount to a total of 6,000 square feet. Sublease opportunities on the market include General Office, Medical Office, Flex Space. The Portsmouth neighborhood or submarket with the most sublease listings available is Sherburne.

The best choice of neighborhood for your office space will greatly depend on the elements that are most relevant to your business and your employees. However, a good criterion to start with is to look at the areas of the city that have the highest concentration of office properties, as these areas are generally well connected to transit options and have a good degree of amenity availability.

In Portsmouth, the greatest concentration of office space for lease opportunities is in North Mill Pond, Sherburne, Wentworth Acres.

Each individual’s commuting experience will of course be different depending on a number of factors. Check the location description details for the office listings that catch your eye, to get an overview of walkability, access to public transport, the quality of infrastructure dedicated to biking commuters, as well as the proximity to parking facilities, fuel stations, and other essential amenities.

The Portsmouth office market incorporates a mix of properties of various ages, ratings, construction grades, and other quality indicators. Roughly 42.11% of total office space listings in the city are in properties rated Class A. You will find the highest concentration of Class A office space in the North Mill Pond neighborhood of Portsmouth. Class B office space accounts for 34.21% of spaces listed on the leasing market. The neighborhood with the most Class B office space is Wentworth Acres. Class C office space makes up 5.26% of office space available in Portsmouth.

Buildings completed in and since the year 2000 account for 28.57% of office properties in the city and incorporate a total of 311,722 square feet. About 14.29% of office space in Portsmouth is in buildings that have been renovated at least once since 2000.

There are, of course, a lot of things to factor in when you are looking for office space. Aspects including the accessibility of the location, the quality of the facility, the size of the space, the convenience of nearby amenities, the type and duration of the lease, and of course the cost are all part of the search and decision process. For a quick checklist of what you should take into account when researching the market, consider these seven tips for choosing the best office location for your business. Alternatively, for a comprehensive take on everything to consider when looking for office space, see our in-depth guide to finding office space for small or growing companies. The guide also includes insights from seasoned professionals and can serve as a helpful resource for growing companies, no matter their current size.

Are you looking to lease office space in the vicinity of your current location or in a particular neighborhood of Portsmouth? Using the interactive map, you can easily navigate to your preferred location and customize your search area around a specific point of interest. Select “Radius” from the Search Mode options menu, click on the map to set your search reference point, and expand the radius to select your desired search area. Browse available listings to find the best office space that meets your location, as well as other business needs.

Portsmouth, NH Office Inventory Breakdown

There are a number of factors that make a city attractive for businesses to relocate or expand, as well as for investors to enhance their portfolios through local acquisitions. Among the most important factors to consider are the size and quality of the local office market, which is an essential component of the local economy.

Total Office Space in Portsmouth: 3,414,226 Sq. Ft.

In 2024 the Portsmouth office market encompassed 3,414,226 square feet of space.
Class A office space makes up a 21.79% share of Portsmouth office inventory, while Class B office assets represent roughly 67.39% of the market total.

Portsmouth Office Market Breakdown by Building Size
Building Size Range	Total Square Feet	Share of Total Office
50k to 100k Sq. Ft.	1,363,913 Sq. Ft.	39.95%
100k to 500k Sq. Ft.	1,521,855 Sq. Ft.	44.57%

Portsmouth Office Market Breakdown by Building Quality Rating
Class	Total Square Feet	Share of Total Office
Class A	743,944 Sq. Ft.	21.79%
Class B	2,300,858 Sq. Ft.	67.39%
Class C	194,424 Sq. Ft.	5.69%

Data was provided by CommercialEdge, refers to properties larger than 50,000 square feet.

38 Office Spaces for Rent in Portsmouth, NH

426 Middle Street

215 Commerce Way

233 Vaughan Street, Unit 102, Portsmouth, NH

Portsmouth Office Park - 230 Commerce Way

145 Maplewood Avenue

40 Pleasant Street (Small Office Suite)

Portsmouth

100 Market Street

5 Greenleaf Woods Drive

273 Corporate Drive

360 Corporate Drive, Portsmouth, NH

Portsmouth Office Park - 135 Commerce Way

111 New Hampshire Avenue

125 Aviation Avenue, Portsmouth, NH

Jackson Gray Building

Portsmouth Office Park - 210 Commerce Way

Orchard Park

4 Greenleaf Woods Drive- offices

10 Commercial Aly

2 International Drive

172 Hanover Street

Pease International Tradeport

155 Fleet Street

1950 Lafayette Road

7 Portwalk Place

Modern Office Suite

Frequently Asked Questions

Portsmouth, NH Office Inventory Breakdown

Total Office Space in Portsmouth: 3,414,226 Sq. Ft.

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38 Office Spaces for Rent in Portsmouth, NH

Frequently Asked Questions

How much does office space cost in Portsmouth, NH?

How much office space do I need?

What types of office space can I lease in Portsmouth, NH?

Can I find sublease office space in Portsmouth, NH?

Where is the best location for office space in Portsmouth, NH?

How long is the average commute to work in Portsmouth, NH?

Where can I find the highest quality office space in Portsmouth, NH?

How do I find the best office space in Portsmouth, NH?

How can I find office space for rent near me?

Portsmouth, NH Office Inventory Breakdown

Total Office Space in Portsmouth: 3,414,226 Sq. Ft.

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Popular Coworking Searches

About us