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    Sussex County, NJ Office Buildings for Sale

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    Brick Professional Office Building
    Updated: Sep 10, 2025
    Brick Professional Office Building

    14 Church St, Newton, NJ 07860

    $634,900
    3,794 sqft
    3‑story brick office building with 3,794 square feet
    Renovated in 2007, with additional work in 2017, 2019, and 2021
    Computer switching system creates secured individual offices
    New mini‑split HVAC and natural gas boiler
    T6 Core zoning standards permit office and additional stated use options
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    This listing looks promising.

    Here's a quick look at some key insights for

    14 Church St, Newton Town, NJ 07860

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    • Est. Cap Rate

      9.1%
      Above avg (5.9%)

    • Est. NOI

      $58K
      Annual

    • Price @ 7% Cap

      $829K
      Above asking
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    Four-Unit Medical Office Condo
    Updated: Feb 7
    Four-Unit Medical Office Condo

    280 NEWTON SPARTA RD Unit 5-8, Newton, NJ 07860

    $1,100,000
    6,267 sqft 2.36 AC lot
    Four‑unit office condo complex with flexible layouts and CB (Community Business) zoning
    3 units currently leased; 1 unit available for owner occupancy or additional rental income
    Approximately 6,267 SF total building area on 2.36 acres
    66 parking spaces and level lot with freestanding exterior features
    Central air cooling; asphalt shingle roof; year built 1989
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    Freestanding Medical Office with Corner Lot
    Freestanding Medical Office with Corner Lot

    40 Moran St, Newton, NJ 07860

    $425,000
    2,458 sqft

    Fully renovated freestanding medical office zoned T-5 with ADA features, flexible lower-level space, and off-street parking.

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    Fully Leased Sparta Office Building
    Fully Leased Sparta Office Building

    1 Wilson Dr, Sparta, NJ 07871

    $2,850,000
    9,529 sqft 1.85 AC lot

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

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    Turn a Listing Into an Investment Snapshot Cap Rate, Potential NOI, Demand score for every listing. Go To Analytics Center
    Updated Single-Story Medical Office
    Updated Single-Story Medical Office

    80 Mill St, Newton, NJ 07860

    $799,000
    4,000 sqft

    Renovated professional facility with adaptable rooms, separate entrances, dedicated parking, and an additional rear building.

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    Upgraded Brick Building in Newton
    Upgraded Brick Building in Newton

    14 Church St, Newton, NJ 07860

    $654,900
    0.13 AC lot

    Three-story upgraded brick building suitable for various uses.

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    Office Building for Sale
    Office Building for Sale

    350 Sparta Avenue, Sparta, NJ 07871

    Contact for pricing
    15,000 sqft

    For-sale office building at 350 Sparta Avenue with a sizable footprint for business operations.

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    Freestanding Commercial Building
    Freestanding Commercial Building

    409 Woodport Rd, Sparta, NJ 07871

    $590,000

    Freestanding commercial building with expansive open-concept space, private areas, restrooms, storage, and a commercial kitchen/prep area.

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    Mixed-Use Retail and Office Building
    Mixed-Use Retail and Office Building

    57-59 Main Street, Sussex, NJ 07461

    Contact for pricing
    10,293 sqft

    For sale mixed-use building in Sussex, NJ, offering combined retail and office space totaling 10,293 SF.

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    Office Building
    Office Building

    135 Newton Sparta Road, Newton, NJ 07860

    Contact for pricing
    3,500 sqft

    For sale office building offering 3,500 SF of space.

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    Centrally Located Office Building
    Centrally Located Office Building

    212 STATE RT 94, Vernon, NJ 07462

    Contact for pricing

    Office building offering about 9,000± sf that can be divided for medical or professional office use.

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    Historic Live-Work Office Building
    Historic Live-Work Office Building

    33 Trinity, Newton, NJ 07860

    Contact for pricing

    Historic building in great condition with restored original appointments, molding, and excellent natural light.

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    Renovated Historic Office Building
    Renovated Historic Office Building

    55 High St, Newton, NJ 07860

    Contact for pricing

    Renovated historic office building with two floors of offices, conference space, and basement storage.

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    Based on your search, we've compiled 76 Potential Opportunities for your consideration. Besides 13 Active listings in Sussex County, NJ, we suggest exploring several alternatives: similar 59 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.

    Vernon Twp. Land For Sale
    Vernon Twp. Land For Sale

    Main, Vernon, NJ 07462

    $624,900
    4.06 AC lot

    4.06 acre commercial land available in Vernon Twp., New Jersey.

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    Unimproved Land Parcels For Sale
    Unimproved Land Parcels For Sale

    1561 Sussex Tpke, Randolph, NJ 07869

    $600,000

    Three land parcels with road frontage and development potential.

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    Unimproved Land Parcels For Sale
    Unimproved Land Parcels For Sale

    1561 Sussex Tpke, Randolph, NJ 07869

    $925,000

    Four land parcels with road frontage and development potential.

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    Three Unimproved Land Parcels
    Three Unimproved Land Parcels

    1561 Sussex Tpke, Randolph, NJ 07869

    $525,000

    Three land parcels with road frontage, suitable for development.

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    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
    OFFICE BUILDING

    Crystal Spgs Rd, Hamburg, NJ 07419

    $325,000
    Estimated value
    17.71 AC lot
    View details
    7 Price 31
    OFFICE BUILDING

    7 Price 31, Augusta, NJ 07822

    $1,705,000
    Estimated value
    2.94 AC lot
    View details
    51 Us Hwy 206
    OFFICE BUILDING

    51 Us Hwy 206, Augusta, NJ 07822-2033

    $680,000
    Estimated value
    5.97 AC lot
    View details
    475 Us Hwy 206th S
    OFFICE BUILDING

    475 Us Hwy 206th S, Newton, NJ 07860

    $150,000
    Estimated value
    1,936 sqft 0.95 AC lot
    View details
    14 Church St
    OFFICE BUILDING

    14 Church St, Vernon, NJ 07462-3227

    $715,000
    Estimated value
    6,682 sqft 0.36 AC lot
    View details
    96 Us Hwy 206
    OFFICE BUILDING

    96 Us Hwy 206, Augusta, NJ 07822-2019

    $685,000
    Estimated value
    2.00 AC lot
    View details
    49 Main St
    OFFICE BUILDING

    49 Main St, Franklin, NJ 07416-1422

    $165,000
    Estimated value
    2,847 sqft 0.08 AC lot
    View details
    201 Houses Cor Rd
    OFFICE BUILDING

    201 Houses Cor Rd, Lafayette, NJ 07848

    $330,000
    Estimated value
    2.02 AC lot
    View details
    45 Sammis Rd
    OFFICE BUILDING

    45 Sammis Rd, Sussex, NJ 07461-4820

    $510,000
    Estimated value
    6,048 sqft 4.15 AC lot
    View details
    165 State Rt 23
    OFFICE BUILDING

    165 State Rt 23, Franklin, NJ 07416-2000

    $370,000
    Estimated value
    3,356 sqft 1.01 AC lot
    View details
    11 Plns Rd
    OFFICE BUILDING

    11 Plns Rd, Augusta, NJ 07822-2009

    $180,000
    Estimated value
    1,932 sqft 5.01 AC lot
    View details

    Sussex County, NJ Office Buildings Market Trends and Statistics

    Explore 72 office buildings for sale in Sussex County, NJ, showcased through 13 active listings on our real estate platform. These investment opportunities span a total of 54,841 square feet of properties for sale, with an estimated market value of $7,053,800.

    Sale prices for office properties in Sussex County, NJ start at $425,000, averaging $1,007,685, and reaching up to $2,850,000 — 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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    Featured Sussex County Real Estate Agencies

    Realmo connects you with licensed Sussex County CRE brokers providing property specifications, local market pricing, and commercial transaction underwriting support.

    Sussex County Real Estate
    385 ROUTE 23 SOUTH Franklin, NJ 07416
    Phone: 19738278885
    www.sussexcountyrealestatenj.com/
    Weichert Realtors Sparta
    92 Woodport Road Sparta, NJ 07871
    Phone: 19732195355
    www.weichert.com/offices/NJ-Sparta/
    Fairclough Realtors
    350 Sparta Avenue, A-2 Sparta, NJ 07871
    Phone: 19737267800
    faircloughrealtors.com

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