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    Union County, NJ Office Buildings for Sale

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    Newark, NJ Paterson, NJ Jersey City, NJ
    14 results
    Mountainside Office Building For Sale
    $1,750,000
    5,580 SF
    Mountainside Office Building For Sale

    1299 US Route 22 Highway E, Mountainside, NJ 07092

    5580 SF office building in Mountainside, NJ for sale.
    • High visibility signage opportunity in coveted mountainside
    • Spacious 5580 SF two‑story office building
    • Six spacious offices and two conference areas
    • Ample parking with front and rear entrances
    • Convenient access to major highways and mass transit
    Updated: Apr 27
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    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
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    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

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    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

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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 7016

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    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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    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

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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

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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

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    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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    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

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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

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    Based on your search, we've compiled 76 Potential Opportunities for your consideration. Besides 14 Active listings in Union County, NJ, we suggest exploring several alternatives: similar 58 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.

    Watchung Boro Land For Sale
    $449,000
    0.92 Acres
    Watchung Boro Land For Sale

    0.92 acre lot in Watchung Boro, NJ for sale.

    729 Mountain Blvd, Watchung, NJ 07069

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    Watchung Boro Commercial Lot For Sale
    $449,000
    0.92 Acres
    Watchung Boro Commercial Lot For Sale

    0.92 acre commercial lot in Watchung Boro, New Jersey.

    729 Mountain Blvd, Watchung, NJ 07069

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    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

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    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

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    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
    OFFICE BUILDING
    7,020 SF Lot: 0.56 Acres
    Value Estimation by Request

    655 Pt 1300th Ave, Elizabeth, NJ 07201-1213

    View details
    613 Westminster Ave, Unit 619
    OFFICE BUILDING
    2,917 SF Lot: 0.53 Acres
    Estimated value
    $530,000
    Unit 619

    613 Westminster Ave, Elizabeth, NJ 07208-2208

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    264-268 Broad St, Unit 268
    OFFICE BUILDING
    13,066 SF Lot: 0.17 Acres
    Estimated value
    $1,695,000
    Unit 268

    264-268 Broad St, Elizabeth, NJ 07208-3701

    View details
    504 Maple Ave, Unit R500-R
    OFFICE BUILDING
    660 SF Lot: 0.55 Acres
    Value Estimation by Request
    Unit R500-R

    504 Maple Ave, Elizabeth, NJ 07202-3514

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    519 Pennsylvania Ave, Unit 525
    OFFICE BUILDING
    5,892 SF Lot: 0.47 Acres
    Estimated value
    $910,000
    Unit 525

    519 Pennsylvania Ave, Elizabeth, NJ 07201-1183

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    440 Broad St
    OFFICE BUILDING
    7,196 SF Lot: 0.57 Acres
    Estimated value
    $1,800,000

    440 Broad St, Westfield, NJ 07090-2124

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    1507 Saint Georges Ave
    OFFICE BUILDING
    1,058 SF Lot: 0.12 Acres
    Estimated value
    $570,000

    1507 Saint Georges Ave, Rahway, NJ 07065-2717

    View details
    115 Jefferson Ave
    OFFICE BUILDING
    2,794 SF Lot: 0.05 Acres
    Value Estimation by Request

    115 Jefferson Ave, Elizabeth, NJ 07201-2417

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    113 Jefferson Ave
    OFFICE BUILDING
    1,762 SF Lot: 0.05 Acres
    Value Estimation by Request

    113 Jefferson Ave, Elizabeth, NJ 07201-2417

    View details
    468 Nn Ave, Unit 474
    OFFICE BUILDING
    3,702 SF Lot: 0.31 Acres
    Estimated value
    $810,000
    Unit 474

    468 Nn Ave, Elizabeth, NJ 07208-1738

    View details

    Union County, NJ Office Buildings Investment Opportunities Market Analysis

    Explore 72 office buildings for sale in Union County, NJ, showcased through 14 active listings on our real estate platform. These investment opportunities span a total of 43,352 square feet of properties for sale, with an estimated market value of $16,458,800.

    Sale prices for office properties in Union County, NJ start at $499,900, averaging $1,496,254, and reaching up to $6,000,000 — 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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