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    Union County, NJ Office Buildings for Sale

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    Newark, NJ Trenton, NJ Paterson, NJ
    15 results
    Roselle Park Office Building
    $499,900
    2,500 SF

    Roselle Park Office Building

    277 W Clay Ave, Roselle Park, NJ 07204

    2,500 SF office building near Parkway and Route 22.

    • Strategically located near the Parkway and Route 22, offering excellent visibility and convenient access.
    • 2,500 SF of versatile professional space, easily divisible into two separate suites.
    • Features 9 private offices, a spacious conference room, full kitchen.
    • On‑site parking accommodates 12+ vehicles.
    • Equipped with two HVAC systems and a comprehensive security system with cameras.
    Updated: Mar 16
    View details
    Versatile Office Building For Sale
    $499,900
    2,500 SF

    Versatile Office Building For Sale

    277 W Clay Ave, Roselle Park, NJ 7204

    2,500 SF office building with flexible layout and parking.

    • Strategically located near the Parkway and Route 22, offering excellent visibility and convenient access.
    • 2,500 SF of versatile professional space with 9 private offices, a conference room, and a full kitchen.
    • Easily divisible into two separate suites for multi‑tenant occupancy or future expansion.
    • On‑site parking accommodates 12+ vehicles.
    • Includes two HVAC systems and a comprehensive security system with cameras.
    Updated: Mar 16
    View details
    Prime Union Commercial Property For Sale
    $1,250,000
    2,800 SF

    Prime Union Commercial Property For Sale

    Iconic property in Union's thriving Downtown Transition Zone.

    1307 Stuyvesant Ave, Union, NJ 7083
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    Westfield Professional Building For Sale
    $1,250,000
    3,200 SF

    Westfield Professional Building For Sale

    Three-story professional building with basement and parking in Westfield, NJ.

    114 S Euclid Ave, Westfield, NJ 7090
    View details
    Renovated Mixed-Use Trophy Property
    $1,500,000
    4,216 SF

    Renovated Mixed-Use Trophy Property

    Renovated 3,800 SF mixed-use property near NP train station.

    82 Floral Ave, New Providence, NJ 7974
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    Elizabeth Office Building For Sale
    $1,199,000
    4,122 SF

    Elizabeth Office Building For Sale

    Office building with 4,122 square feet of space.

    802 3rd Avenue, Elizabeth, NJ 7202
    View details
    Roselle Park Mixed-Use Opportunity
    $1,499,900
    5,272 SF

    Roselle Park Mixed-Use Opportunity

    Two-story, 5,272 SF mixed-use building in prime location.

    441 E westfield Avenue, Roselle Park, NJ 07204
    View details
    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 7016
    View details
    Two-Story Medical/Office Building For Sale
    $1,100,000
    2,000 SF

    Two-Story Medical/Office Building For Sale

    Two-story medical/office building with income potential in Rahway, NJ.

    1530 Saint Georges, Rahway, NJ 7065
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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
    View details
    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 7076
    View details
    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
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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
    View details
    Springfield Office Building Auction
    Contact for pricing
    14,304 SF

    Springfield Office Building Auction

    Office building for sale via live bid auction.

    733 Mountain Ave, Springfield, NJ 7081
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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
    View details
    Based on your search, we've compiled 300 Potential Opportunities for your consideration. Besides 15 Active listings in Union County, NJ, we suggest exploring several alternatives: similar 281 Off-Market properties to explore as potential leads, plus 4 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.

    Richmond Avenue Commercial Lot
    $1,250,000
    0.41 Acres

    Richmond Avenue Commercial Lot

    Nearly 18,000 sq ft lot in a busy commercial district.

    964 Richmond Avenue, Staten Island, NY 10314
    View details
    Piscataway Land Development Opportunity
    $279,000
    0.12 Acres

    Piscataway Land Development Opportunity

    Prime 0.1171-acre lot in high-traffic area, ideal for development.

    115 Stelton Road, Piscataway, NJ 08854
    View details
    Cleared Commercial Land, Piscataway, NJ
    Contact for pricing
    48,098 SF

    Cleared Commercial Land, Piscataway, NJ

    1.1 acres of cleared land zoned for general business.

    1034 Stelton Road, Piscataway, NJ 08854
    View details
    Piscataway Commercial Land Opportunity
    $2,250,000
    1.10 Acres

    Piscataway Commercial Land Opportunity

    1.1 acres of premium land zoned for general business.

    1034 Stelton Road, Piscataway, NJ 08854
    View details

    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.

    655 Pt 1300th Ave

    655 Pt 1300th Ave

    OFFICE BUILDING • 7,020 SF
    Value Estimation by Request
    655 Pt 1300th Ave, Elizabeth, NJ 07201-1213
    View details
    613 Westminster Ave, Unit 619

    613 Westminster Ave, Unit 619

    OFFICE BUILDING • 2,917 SF
    Value Estimation
    $530,000
    613 Westminster Ave, Elizabeth, NJ 07208-2208
    View details
    264-268 Broad St, Unit 268

    264-268 Broad St, Unit 268

    OFFICE BUILDING • 13,066 SF
    Value Estimation
    $1,695,000
    264-268 Broad St, Elizabeth, NJ 07208-3701
    View details
    504 Maple Ave, Unit R500-R

    504 Maple Ave, Unit R500-R

    OFFICE BUILDING • 660 SF
    Value Estimation by Request
    504 Maple Ave, Elizabeth, NJ 07202-3514
    View details
    519 Pennsylvania Ave, Unit 525

    519 Pennsylvania Ave, Unit 525

    OFFICE BUILDING • 5,892 SF
    Value Estimation
    $910,000
    519 Pennsylvania Ave, Elizabeth, NJ 07201-1183
    View details
    440 Broad St

    440 Broad St

    OFFICE BUILDING • 7,196 SF
    Value Estimation
    $1,800,000
    440 Broad St, Westfield, NJ 07090-2124
    View details
    1507 Saint Georges Ave

    1507 Saint Georges Ave

    OFFICE BUILDING • 1,058 SF
    Value Estimation
    $570,000
    1507 Saint Georges Ave, Rahway, NJ 07065-2717
    View details
    115 Jefferson Ave

    115 Jefferson Ave

    OFFICE BUILDING • 2,794 SF
    Value Estimation by Request
    115 Jefferson Ave, Elizabeth, NJ 07201-2417
    View details
    113 Jefferson Ave

    113 Jefferson Ave

    OFFICE BUILDING • 1,762 SF
    Value Estimation by Request
    113 Jefferson Ave, Elizabeth, NJ 07201-2417
    View details

    Union County, NJ Office Buildings Investment Opportunities Market Analysis

    Explore 296 office buildings for sale in Union County, NJ, showcased through 15 active listings on our real estate platform. These investment opportunities span a total of 832,335,911 square feet of properties for sale, with an estimated market value of $85,039,800.

    Sale prices for office properties in Union County, NJ start at $150,000, averaging $794,764, and reaching up to $6,275,000 — offering options for a variety of budgets and business needs. Daily updated analytics ensure you stay ahead with the latest data and market trends.

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