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Warren County, NJ Office Spaces for Sale

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Two-Level Office Building with Parking
Updated: Mar 25
Two-Level Office Building with Parking

101 Belvidere Avenue, Washington, NJ 07882

$395,000
2,307 sqft 0.16 AC lot
Historic office building built in 1890 with wood siding, asphalt roof, and a whole‑house generator
Two levels with multiple office spaces plus large meeting/conference rooms, including a dedicated server room
Main floor layout includes two separate entrances, an open office/reception area, a half bath, and a conference room with counter/cabinet space
Upper level features three closed‑door offices plus a half bath and a conference room/office
Full basement with a concrete floor for additional storage, served by public water and public sewer
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101 Belvidere Avenue, Washington Bor, NJ 07882

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Mixed-Use Quadplex with Parking
Updated: Jan 28
Mixed-Use Quadplex with Parking

137 Belvidere Ave, Washington, NJ 07882

$825,000
2,928 sqft 0.35 AC lot
Four‑unit mixed‑use property on a corner lot: 3 one‑bedroom residential units plus 1 commercial unit
Commercial unit previously used as a dental office/medical clinic and has been recently updated
Zoned OB (Office/Business) for mixed‑use office/commercial use
Updated outbuilding/carriage house/garage adds additional storage or potential supplemental income (subject to approvals)
Generous on‑site parking available
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Two-Story Flex Building with Garage Bays
Two-Story Flex Building with Garage Bays

210 3RD AVE Unit 210, Phillipsburg, NJ 08865

$675,000
4,320 sqft

Two-story building with two large garage bays, office space on both levels, and central air with gas heat.

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Two-Story Flex Building with Garage
Two-Story Flex Building with Garage

27 U.S. HIGHWAY 46 Unit 1, Columbia, NJ 07832

$899,000
3,360 sqft

Two-story flex property with a finished first floor, unfinished second floor, and a 30x75 metal frame garage.

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Freestanding Commercial Showroom Building
Freestanding Commercial Showroom Building

Hackettstown, NJ 07840

$399,000
2,182 sqft

Freestanding showroom with flexible first floor and three private second-floor offices, plus parking, basement storage, and garage.

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Medical Office Building Suite
Medical Office Building Suite

205 ROUTE 31 Unit 1, Washington, NJ 07882

$975,000
6,800 sqft

Two-level office layout with a professional front foyer, more than 10 private offices, and meeting rooms.

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Versatile Commercial Building on Highway
Versatile Commercial Building on Highway

522 Memorial Pkwy, Phillipsburg, NJ 08865

$435,000
1,764 sqft

Two-story commercial building with flexible layout and highway visibility.

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Meticulously Maintained Office Building
Meticulously Maintained Office Building

101 Belvidere Ave, Washington, NJ 07882

$395,000
2,307 sqft 0.15 AC lot

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

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Mixed-Use Building with Garage Bays
Mixed-Use Building with Garage Bays

Phillipsburg, NJ 08865

$675,000
4,320 sqft

Two-story commercial building with garage bays and office space.

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Two-Level Office Building
Two-Level Office Building

101 BELVIDERE AVE Unit 9999, Washington, NJ 07882

$395,000
2,307 sqft

Two-level office building with multiple suites, conference rooms, dedicated server room, and full basement with off-street parking.

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Versatile Commercial Building on Route 46
Versatile Commercial Building on Route 46

Columbia, NJ 07832

$899,000
2.00 AC lot

High-visibility corner lot with two-story building and metal frame garage.

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Two-Story Multi-Tenant Office Building
Two-Story Multi-Tenant Office Building

315 W Washington Ave, Washington, NJ 07882

$1,300,000

Updated two-story office building with elevator, common areas, and ample on-site parking for tenants and visitors.

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Former Elementary School Office Building
Former Elementary School Office Building

1 Fairview Ave, Phillipsburg, NJ 08865

Contact for pricing
2,500 sqft

All brick/stone former elementary school retains original wood floors and woodwork, with multiple rooms and entrances.

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Office Condo with Private Entrance
Office Condo with Private Entrance

755 US-22, Phillipsburg, NJ 08865

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2,025 sqft

Office/medical condo with a private entry off the parking lot, reception, private offices, break room, two baths, and storage.

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Historic Office Suite with Fireplace
Historic Office Suite with Fireplace

130 MANSFIELD ST, Belvidere, NJ 07823

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2,700 sqft

Private office suite in a historic building with high ceilings, hardwood floors, a private bathroom, and fireplace.

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Turnkey Professional Office Space
Turnkey Professional Office Space

Phillipsburg, NJ 08865

$115,000

First floor office with waiting room, exam rooms, and parking.

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Two-Story Office Suite with Private Entrance
Two-Story Office Suite with Private Entrance

Phillipsburg, NJ 08865

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A two-story suite with a private entrance and dedicated restroom, recently set up for professional office use.

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Downtown Office with Storefront Windows
Downtown Office with Storefront Windows

352 S MAIN ST, Phillipsburg, NJ 08865

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Updated office with large sidewalk-facing display windows, three main rooms, and modern heating and air conditioning.

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Second-Floor Office Space
Second-Floor Office Space

699 WASHINGTON ST, Hackettstown, NJ 07840

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Second-floor office includes open work area and individual offices, with on-site parking and building elevator access.

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Office Building For Sale
Office Building For Sale

490 Us Highway 46, Belvidere, NJ 07823

$350,000

Office building available for sale at 490 US Highway 46 in Belvidere, NJ.

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Downtown Office Suite with Offices
Downtown Office Suite with Offices

121 S MAIN ST, Phillipsburg, NJ 08865

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Office suite includes three private offices, a conference room, and two private bathrooms.

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Commercial Building on Route 31
Commercial Building on Route 31

76 Route 31 N, Washington, NJ 07882

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2,000 sqft

Mixed-use commercial building with warehouse space in Washington Boro.

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Based on your search, we've compiled Potential Opportunities for your consideration. Besides 22 Active Listings in Warren County, NJ, we suggest to view alternatives - similar 50 Off-Market properties to explore as potential leads.

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.

409 Coventry Dr
CONDOMINIUM OFFICES

409 Coventry Dr, Phillipsburg, NJ 08865-1969

Value Estimation by Request
1,640 sqft
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301 Coventry Dr
CONDOMINIUM OFFICES

301 Coventry Dr, Phillipsburg, NJ 08865-1968

Value Estimation by Request
1,892 sqft
View details

Warren County, NJ Office Spaces Market Trends and Statistics

Explore 72 office spaces for sale in Warren County, NJ, showcased through 22 active listings on our real estate platform. These investment opportunities span a total of 41,820 square feet of properties for sale, with an estimated market value of $8,732,000.

Sale prices for office spaces in Warren County, NJ start at $115,000, averaging $623,714, and reaching up to $1,300,000 — 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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