139 South Street, New Providence, NJ 07974 For Sale

Premier Multi-Tenant Office Investment with Significant Value-Add Potential

139 South Street presents a rare opportunity to acquire a well-maintained, fully occupied office building in the heart of New Providence's thriving business district. This approximately 23,000-square-foot property offers stable in-place cash flow, an excellent tenant mix, and a compelling opportunity to substantially increase income through the future build-out of the existing third floor.

The building is currently 100% occupied providing investors with immediate, dependable cash flow. The framed and enclosed third floor is already served by an elevator and existing building infrastructure, creating a unique opportunity to add approximately 5,600 square feet of additional leasable office space. Once completed and leased, this expansion has the potential to significantly increase rental income and overall asset value.

Situated on one of New Providence's primary commercial corridors, the property enjoys outstanding visibility, convenient access to major highways, and is within walking distance of downtown restaurants, retail, and the New Providence train station, providing direct service to New York City. The property also benefits from ample on-site parking and a professional appearance that continues to attract quality office tenants.

Investment Highlights:

Approximately 23,000 SF multi-tenant office building

100% occupied with stable, diversified tenancy

Existing framed and enclosed third floor with approximately 5,600 SF of expansion potential

Elevator service to all floors

Excellent parking and accessibility

Prime New Providence location near downtown amenities and NJ Transit

Significant upside through lease-up of future third-floor space

Strong long-term investment in one of Union County's most desirable office markets

Whether acquired as a stable income-producing investment or as a strategic value-add opportunity, 139 South Street offers investors the rare combination of immediate cash flow, future income growth, and long-term appreciation potential in a highly sought-after suburban office market.

New Providence is a highly desirable Union County borough located approximately 24 miles west of Midtown Manhattan, within the broader Short Hills/Millburn/Summit corridor - one of the most affluent submarkets in the New York metropolitan area. The borough is known for excellent public schools, a walkable downtown commercial district, and strong NJ Transit rail connectivity via the Gladstone Branch of the Morris & Essex Line.

New Providence's high-income demographic creates sustained demand for on-site medical, dental, financial, and professional services - precisely the tenant mix at 139 South Street. The building benefits from the submarket's limited supply of Class B multi-tenant office inventory, which creates structural support for occupancy and in-place rents.

The broader 5-mile radius reports a median household income of $174,821 - nearly 73% above the NJ state median - providing a deep, affluent client base for the building's service-oriented tenants.