Warren County, NJ Office Spaces for Rent

Find the best Warren County, NJ office space among 6 for rent listings currently on the market.

Greenwich Commons

1 Greenwich Street, Greenwich, Stewartsville, NJ
Property

Office

42,896 SF
Availability

4 Spaces

22,796 SF
For Lease Contact for pricing
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±13,000 SF Medical Office

525-537 New Jersey 57, Washington, NJ
Property

Office

13,000 SF
Availability

1 Space

13,000 SF
For Lease Contact for pricing
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CUSTOM OFFICE 205 RT 31 WASHINGTON NJ

205 RT 31, Washington, NJ
Property

Office

6,800 SF
Availability Contact for availability
Year Built

1981
For Lease Contact for pricing
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39-41 South Main Street
Office@Main
41 South Main Street, Phillipsburg, NJ
Services

Meeting Room

Private Office

Dedicated Desk
Amenities

Catering

Complimentary coffee & tea

Free water

High-speed wifi

Kitchen

Lockable filing cabinets

Lounge area

Parking

Printer
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256 Belvidere Ave

256 Belvidere Ave, Washington, NJ
Property

Office

10,670 SF
Availability

1 Space

3,500 SF
For Lease

$2,900.00/SF/MO
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Warren County, 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 New Jersey: 429,238 Sq. Ft.

In 2025 the New Jersey office market encompassed 429,238 square feet of space.
Class A office space makes up a 20.48% share of New Jersey office inventory, while Class B office assets represent roughly 79.52% of the market total.

New Jersey Office Market Breakdown by Building Size
Building Size Range	Total Square Feet	Share of Total Office
50k to 100k Sq. Ft.	268,332 Sq. Ft.	62.51%

New Jersey Office Market Breakdown by Building Quality Rating
Class	Total Square Feet	Share of Total Office
Class A	87,896 Sq. Ft.	20.48%
Class B	341,342 Sq. Ft.	79.52%

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

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Warren County, NJ Office Spaces for Rent

Greenwich Commons

±13,000 SF Medical Office

CUSTOM OFFICE 205 RT 31 WASHINGTON NJ

39-41 South Main Street

256 Belvidere Ave

Warren County, NJ Office Inventory Breakdown

Total Office Space in New Jersey: 429,238 Sq. Ft.

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