7 Office Spaces for Rent in Mountainside, NJ

Find the best Mountainside, NJ office space among 7 for rent listings currently on the market.

Mountainside Medical Center

1450 US Route 22 West, Mountainside, NJ
Property

Office

41,073 SF
Availability

5 Spaces

20,875 SF
Year Built

1987
For Lease Contact for pricing
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The Diamondhead Building

200 Sheffield Street, Mountainside, NJ
Property

Office
Availability

1 Space

34,555 SF
For Lease Contact for pricing
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313 South Avenue
Originate
313 South Avenue #300, Fanwood, NJ
Services

Meeting Room

Private Office

Dedicated Desk
Amenities

Complimentary coffee & tea

High-speed wifi

Lounge area

Printer

TV/Monitor
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447 Springfield Avenue
Small Officer
447 Springfield Avenue, Summit, NJ
Services

Virtual Office

Open Workspace

Meeting Room

Private Office
Amenities

High-speed wifi

Receptionist/Secretarial services

White boards
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426 Springfield Avenue
The Co-Co
426 Springfield Avenue 2nd Floor, Summit, NJ
Services

Open Workspace

Event Space

Meeting Room
Amenities

Catering

Complimentary coffee & tea

High-speed wifi

Kitchen

Lounge area

Outdoor areas

Parking

Printer

Privacy booths

TV/Monitor
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Echo Executive Plaza

899 Mountain Avenue, Springfield, NJ
Property

Office

41,100 SF
Availability

2 Spaces

6,213 SF
For Lease Contact for pricing
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Second Floor Office Suite

11 Dundar Road, Springfield, NJ
Property

Office

14,000 SF
Availability

1 Space

1,196 SF
For Lease

$1,950.00/MO
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959 South Springfield Avenue

959 South Springfield Avenue, Springfield, NJ
Property

Office

7,062 SF
Availability

1 Space

2,928 SF
For Lease Contact for pricing
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The Short Hills Office Centre

101 JFK Parkway, Canoe Brook Reservoir, Short Hills, NJ
Property

Office

195,000 SF
Availability

1 Space

17,189 SF
Year Built

1981
For Lease Contact for pricing
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184 North Avenue East
Cranford Works
184 North Avenue East, Cranford, NJ
Services

Open Workspace

Meeting Room

Private Office

Dedicated Desk
Amenities

Complimentary coffee & tea

Free water

High-speed wifi

Kitchen

Parking

Window view
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623 Morris Avenue
Flexwork NJ
623 Morris Avenue, Springfield, NJ
Services

Virtual Office

Meeting Room

Private Office

Dedicated Desk
Amenities

A/V equipment

High-speed wifi

Kitchen

Mail services

Projector

TV/Monitor

White boards
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1200 Morris Turnpike
Industrious
1200 Morris Turnpike #3005, Millburn, NJ
Services

Virtual Office

Open Workspace

Event Space

Meeting Room

Private Office
Amenities

Breakfast

Cleaning services

Complimentary coffee & tea

Happy hour

High-speed wifi

Mail services

Office supplies

Parking

Printer

Privacy booths
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526 South Avenue East
Cranford Works
526 South Avenue East, Cranford, NJ
Services

Meeting Room

Private Office
Amenities

Complimentary coffee & tea

Free water

High-speed wifi

Kitchen

Parking

Window view
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200 Connell Drive
Round Table Studios
200 Connell Drive, Berkeley Heights, NJ
Services

Open Workspace

Meeting Room
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108 North Union Avenue
Cranford Works
108 North Union Avenue #8, Cranford, NJ
Services

Open Workspace

Meeting Room
Amenities

Complimentary coffee & tea

Free water

High-speed wifi

Kitchen

Parking

Window view
View Details (opens in new window)

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.

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 Mountainside, as the local office market offers a wide range of options. Office spaces currently on the market go up to as much as 34,555 square feet in size for an individual listing.

You can find 2 office listing(s) for lease in Mountainside, which add up to a total of 44,930 square feet. Availability on the market includes a variety of office use types, such as General Office.

The most common office use type currently available for lease in Mountainside is General Office, which is offered in 2 or 100.00% of listings.

You can search 1 office sublease listing(s) in Mountainside, which amount to a total of 10,375 square feet. Sublease opportunities on the market include General Office.

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.

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 Mountainside office market incorporates a mix of properties of various ages, ratings, construction grades, and other quality indicators. Class B office space accounts for 50% of spaces listed on the leasing market.

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 Mountainside? 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.

Mountainside, NJ 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 Mountainside: 213,463 Sq. Ft.

In 2024 the Mountainside office market encompassed 213,463 square feet of space.

Mountainside Office Market Breakdown by Building Size
Building Size Range	Total Square Feet	Share of Total Office
100k to 500k Sq. Ft.	104,000 Sq. Ft.	48.72%

Mountainside Office Market Breakdown by Building Quality Rating
Class	Total Square Feet	Share of Total Office
Class B	178,463 Sq. Ft.	83.6%
Class C	35,000 Sq. Ft.	16.4%

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

7 Office Spaces for Rent in Mountainside, NJ

Mountainside Medical Center

The Diamondhead Building

313 South Avenue

447 Springfield Avenue

426 Springfield Avenue

Echo Executive Plaza

Second Floor Office Suite

959 South Springfield Avenue

The Short Hills Office Centre

184 North Avenue East

623 Morris Avenue

1200 Morris Turnpike

526 South Avenue East

200 Connell Drive

108 North Union Avenue

Frequently Asked Questions

Mountainside, NJ Office Inventory Breakdown

Total Office Space in Mountainside: 213,463 Sq. Ft.

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7 Office Spaces for Rent in Mountainside, NJ

Frequently Asked Questions

How much does office space cost in Mountainside, NJ?

How much office space do I need?

What types of office space can I lease in Mountainside, NJ?

Can I find sublease office space in Mountainside, NJ?

Where is the best location for office space in Mountainside, NJ?

How long is the average commute to work in Mountainside, NJ?

Where can I find the highest quality office space in Mountainside, NJ?

How do I find the best office space in Mountainside, NJ?

How can I find office space for rent near me?

Mountainside, NJ Office Inventory Breakdown

Total Office Space in Mountainside: 213,463 Sq. Ft.

Other Popular Searches

Popular Coworking Searches

About us