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    Sussex County, NJ Office Buildings for Sale

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    Newark, NJ Paterson, NJ Trenton, NJ
    Renovated Office Building in Newton
    $380,000
    4,096 SF

    Renovated Office Building in Newton

    11 High St, Newton, NJ 07860

    Newly renovated office building with flexible configuration options and excellent visibility.

    • Newly renovated office building in historic Newton Square (Est. 1890).
    • Flexible configuration options with 4 office suites across 3 floors and private entrances.
    • Excellent visibility in the T‑6 zone, suitable for various uses.
    • Located near the courthouse, downtown business district, restaurants, shopping, and County College, with access to major routes 94 and 206.
    • Four separate electric meters for simple and efficient multi‑tenant leasing.
    Updated: Feb 16
    View details
    Upgraded Brick Building in Newton
    $654,900
    3,794 SF

    Upgraded Brick Building in Newton

    14 Church St, Newton, NJ 07860

    Three-story building in Newton Town with flexible use options.

    • T6 Core zoning allows for a variety of uses including office, daycare, senior care, multi‑family, or mixed‑use.
    • Upgraded and renovated building (2007, 2017, 2019, 2021) with new mini‑split HVAC and natural gas boiler.
    • Easily divisible for owner/user or multiple tenants.
    • Computer switching system creates secured individual offices.
    • Close proximity to Sussex County Courts, Administration Buildings, Sussex Community College, Thor Labs, and Newton Medical Center.
    Updated: Sep 10, 2025
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    Fully Leased Sparta Office Building
    $2,950,000
    9,529 SF

    Fully Leased Sparta Office Building

    Income-producing professional and medical office building in established business district.

    1 Wilson Dr, Sparta, NJ 7871
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    Sparta Office Building Opportunity
    Contact for pricing
    13,000 SF

    Sparta Office Building Opportunity

    Office space available in a premier Sparta building.

    9 FISHERS LN Unit D, Sparta, NJ 7871
    View details
    Based on your search, we've compiled 75 Potential Opportunities for your consideration. Besides 4 Active listings in Sussex County, NJ, we suggest exploring several alternatives: similar 67 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.

    Land Parcel in Economic Zone
    $2,500,000
    9.94 Acres

    Land Parcel in Economic Zone

    Strategically located land parcel suitable for commercial or industrial development.

    Lafayette, NJ 07848
    View details
    Roseland Commercial Corner Lot
    $500,000
    2,021 SF

    Roseland Commercial Corner Lot

    Corner lot in Roseland with B1 zoning and parking.

    194 Eagle Rock Ave, Roseland, NJ 07068
    View details
    Residential Land in Middletown, NY
    $65,000
    0.18 Acres

    Residential Land in Middletown, NY

    Residential land available near Crystal Medical Center and Galleria Mall.

    538 E Main Street, Middletown, NY 10940
    View details
    Commercial Land in Downtown Bangor
    $149,900
    0.29 Acres

    Commercial Land in Downtown Bangor

    Prime commercial land in the heart of Bangor Borough.

    16 Broadway, Bangor, PA 18013
    View details

    Off-Market Properties in Sussex County, NJ

    Consider similar Off-Market properties in Sussex 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.

    Crystal Spgs Rd

    Crystal Spgs Rd

    OFFICE BUILDING • 17.71 Acres
    Value Estimation by Request
    Crystal Spgs Rd, Hamburg, NJ 07419
    View details
    7 Price 31

    7 Price 31

    OFFICE BUILDING • 2.94 Acres
    Value Estimation
    $1,885,000
    7 Price 31, Augusta, NJ 07822
    View details
    51 Us Hwy 206

    51 Us Hwy 206

    OFFICE BUILDING • 5.97 Acres
    Value Estimation
    $785,000
    51 Us Hwy 206, Augusta, NJ 07822-2033
    View details
    475 Us Hwy 206th S

    475 Us Hwy 206th S

    OFFICE BUILDING • 1,936 SF
    Value Estimation by Request
    475 Us Hwy 206th S, Newton, NJ 07860
    View details
    14 Church St

    14 Church St

    OFFICE BUILDING • 6,682 SF
    Value Estimation
    $695,000
    14 Church St, Vernon, NJ 07462-3227
    View details
    96 Us Hwy 206

    96 Us Hwy 206

    OFFICE BUILDING • 2.00 Acres
    Value Estimation
    $675,000
    96 Us Hwy 206, Augusta, NJ 07822-2019
    View details
    49 Main St

    49 Main St

    OFFICE BUILDING • 2,847 SF
    Value Estimation by Request
    49 Main St, Franklin, NJ 07416-1422
    View details
    201 Houses Cor Rd

    201 Houses Cor Rd

    OFFICE BUILDING • 2.02 Acres
    Value Estimation by Request
    201 Houses Cor Rd, Lafayette, NJ 07848
    View details
    45 Sammis Rd

    45 Sammis Rd

    OFFICE BUILDING • 6,048 SF
    Value Estimation by Request
    45 Sammis Rd, Sussex, NJ 07461-4820
    View details
    165 State Rt 23

    165 State Rt 23

    OFFICE BUILDING • 3,356 SF
    Value Estimation
    $830,000
    165 State Rt 23, Franklin, NJ 07416-2000
    View details
    11 Plns Rd

    11 Plns Rd

    OFFICE BUILDING • 1,932 SF
    Value Estimation by Request
    11 Plns Rd, Augusta, NJ 07822-2009
    View details
    651 County Rd 517

    651 County Rd 517

    OFFICE BUILDING • 2,724 SF
    Value Estimation by Request
    651 County Rd 517, Sussex, NJ 07461-4828
    View details
    151 Main St

    151 Main St

    OFFICE BUILDING • 5,209 SF
    Value Estimation by Request
    151 Main St, Franklin, NJ 07416-1615
    View details
    6 Church St

    6 Church St

    OFFICE BUILDING • 2,392 SF
    Value Estimation by Request
    6 Church St, Vernon, NJ 07462-3139
    View details
    35 Main St

    35 Main St

    OFFICE BUILDING • 7,807 SF
    Value Estimation
    $1,150,000
    35 Main St, Franklin, NJ 07416-1420
    View details
    392 State Rt 23

    392 State Rt 23

    OFFICE BUILDING • 1,568 SF
    Value Estimation by Request
    392 State Rt 23, Franklin, NJ 07416-2164
    View details
    39 Newton Sparta Rd

    39 Newton Sparta Rd

    OFFICE BUILDING • 11,742 SF
    Value Estimation
    $880,000
    39 Newton Sparta Rd, Newton, NJ 07860-2773
    View details
    362 Us Hwy 206

    362 Us Hwy 206

    OFFICE BUILDING • 2.05 Acres
    Value Estimation by Request
    362 Us Hwy 206, Branchville, NJ 07826-4233
    View details
    188 Breakneck Rd

    188 Breakneck Rd

    OFFICE BUILDING • 3,763 SF
    Value Estimation by Request
    188 Breakneck Rd, Highland Lakes, NJ 07422-1619
    View details
    402 Us Hwy 206

    402 Us Hwy 206

    OFFICE BUILDING • 1.41 Acres
    Value Estimation by Request
    402 Us Hwy 206, Montague, NJ 07827-3019
    View details

    Sussex County, NJ Office Buildings Investment Opportunities Market Analysis

    Explore 71 office buildings for sale in Sussex County, NJ, showcased through 4 active listings on our real estate platform. These investment opportunities span a total of 17,419 square feet of properties for sale, with an estimated market value of $3,984,900.

    Sale prices for office properties in Sussex County, NJ start at $380,000, averaging $1,328,300, and reaching up to $2,950,000 — 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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