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    Warren County, NJ Office Buildings for Sale

    8 results
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    Meticulously Maintained Washington Office Building
    $425,000
    2,307 SF

    Meticulously Maintained Washington Office Building

    101 Belvidere Ave, Washington, NJ 07882

    Two-level office building with modern updates and off-street parking.

    • Rare off‑street paved parking lot in downtown Washington.
    • Two‑level office building with multiple office spaces and large conference rooms.
    • Meticulously maintained with modern updates and classic craftsmanship.
    • Equipped with high‑end fire and alarm systems, whole‑house generator, and security cameras.
    • Dedicated server room for IT infrastructure.
    Updated: Oct 30, 2025
    View details
    Meticulously Maintained Office Building
    $425,000
    2,307 SF

    Meticulously Maintained Office Building

    101 Belvidere Ave, Washington, NJ 07882

    Two-level office building with modern updates and off-street parking.

    • Paved off‑street parking lot, unique to downtown Washington.
    • Two‑level office building with multiple office spaces and large meeting/conference rooms.
    • Meticulously maintained with modern updates and classic craftsmanship.
    • Benefit from high‑end fire and alarm systems, whole‑house generator, and security cameras.
    • Two separate entrances on the main floor.
    Updated: Oct 28, 2025
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    Phillipsburg Office Building For Sale
    $599,900
    6,548 SF

    Phillipsburg Office Building For Sale

    6,548 SF office building suited for medical or professional use.

    1000 Coventry Dr, Phillipsburg, NJ 08865
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    Meticulously Maintained Office Building
    $425,000
    2,307 SF

    Meticulously Maintained Office Building

    Exquisite office building with modern updates and ample parking.

    101 Belvidere Ave, Washington, NJ 07882
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    Versatile Commercial Property For Sale
    $500,000
    6,548 SF

    Versatile Commercial Property For Sale

    Commercial property suitable for office, medical, and professional services.

    1000 Coventry Dr, Phillipsburg, NJ 08865
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    Historic Brick Building in Phillipsburg
    Contact for pricing

    Historic Brick Building in Phillipsburg

    Former school building with redevelopment potential in a growing community.

    1 Fairview Ave, Phillipsburg, NJ 08865
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    Historic Brick Building For Sale
    Contact for pricing

    Historic Brick Building For Sale

    Former school building with redevelopment potential in revitalizing Phillipsburg.

    1 Fairview Ave, Phillipsburg, NJ 08865
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    Based on your search, we've compiled 23 Potential Opportunities for your consideration. Besides 8 Active listings in Warren County, NJ, we suggest exploring several alternatives: similar 15 Off-Market properties to explore as potential leads

    Explore Off-Market Properties in Warren County, NJ

    Consider similar Off-Market properties in Warren 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.

    1001 County Rd 517

    1001 County Rd 517

    OFFICE BUILDING • 6.69 Acres
    Value Estimation by Request
    1001 County Rd 517, Hackettstown, NJ 07840-2730
    View details
    140 Blvd Boulevard

    140 Blvd Boulevard

    OFFICE BUILDING • 1.33 Acres
    Value Estimation by Request
    140 Blvd Boulevard, Washington, NJ 07882-1761
    View details
    10 Brass Castle Rd

    10 Brass Castle Rd

    OFFICE BUILDING • 7,708 SF
    Value Estimation
    $715,000
    10 Brass Castle Rd, Washington, NJ 07882-6309
    View details
    155 State Rte 94p

    155 State Rte 94p

    OFFICE BUILDING
    Value Estimation by Request
    155 State Rte 94p, Columbia, NJ 07832-2757
    View details
    155 Rte 94

    155 Rte 94

    OFFICE BUILDING
    Value Estimation by Request
    155 Rte 94, Blairstown, NJ 07825
    View details
    1500 County Rd 517

    1500 County Rd 517

    OFFICE BUILDING • 7.41 Acres
    Value Estimation by Request
    1500 County Rd 517, Hackettstown, NJ 07840-2717
    View details
    155 Rte 94

    155 Rte 94

    OFFICE BUILDING
    Value Estimation by Request
    155 Rte 94, Blairstown, NJ 07825
    View details
    95 Industrial Dr

    95 Industrial Dr

    OFFICE BUILDING • 12.16 Acres
    Value Estimation by Request
    95 Industrial Dr, Phillipsburg, NJ 08865
    View details
    305 Roseberry St

    305 Roseberry St

    OFFICE BUILDING • 0.58 Acres
    Value Estimation by Request
    305 Roseberry St, Phillipsburg, NJ 08865-1600
    View details
    600 High St

    600 High St

    OFFICE BUILDING • 3,816 SF
    Value Estimation by Request
    600 High St, Hackettstown, NJ 07840-1443
    View details
    4 Footbridge Ln

    4 Footbridge Ln

    OFFICE BUILDING • 2,080 SF
    Value Estimation by Request
    4 Footbridge Ln, Blairstown, NJ 07825
    View details
    126 Maple Ave

    126 Maple Ave

    OFFICE BUILDING • 1,248 SF
    Value Estimation by Request
    126 Maple Ave, Hackettstown, NJ 07840
    View details
    6 Clb House Dr

    6 Clb House Dr

    OFFICE BUILDING • 1.87 Acres
    Value Estimation
    $515,000
    6 Clb House Dr, Washington, NJ 07882-2212
    View details
    37 Main St

    37 Main St

    OFFICE BUILDING • 0.33 Acres
    Value Estimation by Request
    37 Main St, Blairstown, NJ 07825
    View details
    435 State Rte 57

    435 State Rte 57

    OFFICE BUILDING • 3.12 Acres
    Value Estimation by Request
    435 State Rte 57, Port Murray, NJ 07865-4334
    View details

    Warren County, NJ Office Buildings Investment Opportunities Market Analysis

    Explore 23 office buildings for sale in Warren County, NJ, showcased through 8 active listings on our real estate platform. These investment opportunities span a total of 11,472,484 square feet of properties for sale, with an estimated market value of $2,690,000.

    Sale prices for office properties in Warren County, NJ start at $130,000, averaging $336,250, and reaching up to $515,000 — 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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