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Union County, NJ Office Buildings for Sale

9 results
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Versatile Mixed-Use Building in Roselle
Pending
$1,499,900
5,272 SF

Versatile Mixed-Use Building in Roselle

441-443 E Westfield Ave, Roselle Park, NJ 07204

Two-story, 5,272 sq ft building suitable for offices or mixed-use.

  • Prime location on Westfield Avenue with high visibility and traffic.
  • Versatile 5,272 sq ft building suitable for offices, mixed‑use, or up to 3 residential units.
  • Ample off‑street parking.
  • Conveniently located near major transportation.
  • Zoned to permit commercial spaces, medical offices, and up to 3 residential units.
Updated: Dec 26, 2025
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Roselle Park Office/Mixed-Use Building
$1,499,900
5,272 SF

Roselle Park Office/Mixed-Use Building

441 E Westfield Ave, Roselle Park, NJ 07204

Two-story, 5,272 sq ft building in prime Roselle Park location.

  • Prime location on Westfield Avenue with excellent visibility and high traffic.
  • Versatile 5,272 sq ft building suitable for offices, mixed‑use, or up to 3 residential units, commercial spaces and medical offices.
  • Zoned to permit up to 3 residential units in addition to commercial spaces and medical offices.
  • Ample off‑street parking spaces.
  • Conveniently located near major forms of transportation.
Updated: Aug 27, 2025
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Downtown Commercial Building Near Train
Pending
$799,900
4,000 SF

Downtown Commercial Building Near Train

Free-standing commercial building in downtown Garwood near the train station.

334 North Ave, Garwood, NJ 07027
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Prime Cranford Office Building
$785,000
2,100 SF

Prime Cranford Office Building

Standalone building in Cranford's growing downtown business corridor.

10 South Ave, Cranford, NJ 07016
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Freestanding Brick and Stone Building
$625,000
1,800 SF

Freestanding Brick and Stone Building

Professional building with off-street parking; first floor delivered vacant.

1790 Front St, Scotch Plains, NJ 07076
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Downtown Commercial Redevelopment Opportunity
Contact for pricing
12,765 SF

Downtown Commercial Redevelopment Opportunity

Four buildings totaling 12,765 SF on approximately 1 acre.

20 Franklin Pl, Summit, NJ 07901
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North Plainfield Office Building
Contact for pricing
8,200 SF

North Plainfield Office Building

8,200 SF office building with high visibility and parking.

190 Greenbrook Rd, North Plainfield, NJ 07060
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Union Office Building For Sale
$6,000,000
12,534 SF

Union Office Building For Sale

Office building with 12,534 square feet of space.

1767 Us Highway 22 W, Union, NJ 07083
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Summit Office Building For Sale
Contact for pricing
5,924 SF

Summit Office Building For Sale

Office building with 5,924 square feet available for sale.

47 River Rd, Summit, NJ 07901
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Based on your search, we've compiled 291 Potential Opportunities for your consideration. Besides 9 Active listings in Union County, NJ, we suggest exploring several alternatives: similar 281 Off-Market properties to explore as potential leads, plus 1 Land Listings that present a potential for development.

Potential Development Sites for Consideration

Can't find the perfect fit? These Land listings present an alternative path: the potential to develop a property for your specific goals.

Important: These AI-suggestions are a starting point, not a guarantee of permitted use. All zoning, permitting, and land use information must be independently verified by you with the appropriate local authorities before making any commitments.

Commercial Building in Scotch Plains
$899,000
3,500 SF

Commercial Building in Scotch Plains

Commercial building in residential area with easy access to major routes.

301 Forest Rd, Scotch Plains, NJ 07076
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Explore Off-Market Properties in Union County, NJ

Consider similar Off-Market properties in Union County, NJ. You may contact the owners directly to inquire about their potential intentions to sell. To help you make a strong first impression, we can assist by reaching out to these owners with compelling proposals created using our AI tool.

725 Jefferson Ave, Unit 729

725 Jefferson Ave, Unit 729

OFFICE BUILDING • 2,505 SF
Value Estimation
$460,000
725 Jefferson Ave, Elizabeth, NJ 07201-1205
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635 Broadway, Unit 663

635 Broadway, Unit 663

OFFICE BUILDING • 819 SF
Value Estimation by Request
635 Broadway, Elizabeth, NJ 07206-1357
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700-704 Broad St, Unit 4

700-704 Broad St, Unit 4

OFFICE BUILDING • 1,548 SF
Value Estimation by Request
700-704 Broad St, Elizabeth, NJ 07208-2310
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619 Henry St, Unit 635

619 Henry St, Unit 635

OFFICE BUILDING • 25,222 SF
Value Estimation by Request
619 Henry St, Elizabeth, NJ 07201-2015
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228 Jersey St, Unit 238

228 Jersey St, Unit 238

OFFICE BUILDING • 21,816 SF
Value Estimation by Request
228 Jersey St, Elizabeth, NJ 07202-1302
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83-85 Broad St, Unit 85

83-85 Broad St, Unit 85

OFFICE BUILDING • 21,639 SF
Value Estimation by Request
83-85 Broad St, Elizabeth, NJ 07201-2205
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1201 Chestnut St

1201 Chestnut St

OFFICE BUILDING • 5,068 SF
Value Estimation by Request
1201 Chestnut St, Elizabeth, NJ 07201-1008
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505 Elm Ave

505 Elm Ave

OFFICE BUILDING • 1,855 SF
Value Estimation
$490,000
505 Elm Ave, Rahway, NJ 07065
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96 Jersey St, Unit 98

96 Jersey St, Unit 98

OFFICE BUILDING • 3,276 SF
Value Estimation by Request
96 Jersey St, Elizabeth, NJ 07202-2108
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864-866 Elizabeth Ave, Unit 866

864-866 Elizabeth Ave, Unit 866

OFFICE BUILDING • 14,536 SF
Value Estimation by Request
864-866 Elizabeth Ave, Elizabeth, NJ 07201-2756
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706 Trumbull St, Unit 720

706 Trumbull St, Unit 720

OFFICE BUILDING • 7,984 SF
Value Estimation by Request
706 Trumbull St, Elizabeth, NJ 07201-2837
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946 Elizabeth Ave

946 Elizabeth Ave

OFFICE BUILDING • 2,792 SF
Value Estimation by Request
946 Elizabeth Ave, Elizabeth, NJ 07201-2646
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1163 Jersey St, Unit 65

1163 Jersey St, Unit 65

OFFICE BUILDING • 10,610 SF
Value Estimation by Request
1163 Jersey St, Elizabeth, NJ 07201-2310
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233 Broad St

233 Broad St

OFFICE BUILDING • 5,401 SF
Value Estimation
$595,000
233 Broad St, Elizabeth, NJ 07202-3403
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543 Westfield Ave, Unit 551

543 Westfield Ave, Unit 551

OFFICE BUILDING • 8,821 SF
Value Estimation
$940,000
543 Westfield Ave, Elizabeth, NJ 07208-1622
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Union County, NJ Office Buildings Investment Opportunities Market Analysis

Explore 290 office buildings for sale in Union County, NJ, showcased through 9 active listings on our real estate platform. These investment opportunities span a total of 832,348,979 square feet of properties for sale, with an estimated market value of $86,839,700.

Prices for office properties in Union County, NJ start at $150,000, averaging $804,071, and reaching up to $6,275,000 — offering options for a variety of budgets and business needs. Daily updated analytics ensure you have the most current data.

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