Larken Associates Wraps Up Construction on Raritan Valley Professional Center

BRANCHBURG, NJ 01/21/2018

Larken Associates wraps up construction on one of Somerset County’s largest commercial development properties, adding 14,000 sf (+/-) of space to Raritan Valley Professional Center. Leasing is now underway for the third and final medical and office building on the historic property. Building Three has already been 50% pre-leased with occupancy slated for the first quarter of this year.

Larken Associates acquired the once undervalued and neglected Raritan Valley Professional Center in 2015. Formerly known as the Henderson Building, Building One is a concrete, three-story slab building with more than 40,000 sf (+/-) of space. Larken Associates began modernizing the building in October of 2015 with extensive renovations including new carpeting, lighting and wall coverings. The main lobby was upgraded, a custom fitness center was added for tenant use and a second lobby was built for easy access to the employee parking lot. Exteriors were refinished, signage was replaced and landscaping was updated for a fresh and modern feel. The property now features ample parking and is handicap accessible, an important feature of Larken Associates’ building profile. Building One continues to be nearly 100% leased with only one medical or office suite available for lease at roughly 2,000 sf (+/-).

Building Two, the old Carriage House, was fully renovated in 2016 and remains an active and vibrant part of Raritan Valley Professional Center. Once owned by the late New Jersey Senator Joseph S. Frelinghuysen Sr., the Carriage House is the site where President Warren G. Harding signed the Knox-Porter Resolution in 1921, effectively ending the United States’ involvement in World War I. A plaque commemorating the signing exists on estate grounds along Route 28.

The 17,000 sf (+/-) Carriage House is now fully renovated with new restrooms, LED lighting and high-end fixtures and finishes. The building has all new windows, roofing and HVAC systems, yet maintains the integrity of the structure’s original character and style. The Carriage House is nearly 100% leased with just one office suite available for lease use at just under 1,500 sf (+/-).

Building Three is a brand new, ground-up office building that can accommodate any professional, medical or dental office. Larken Associates broke ground on the much-needed addition to Raritan Valley Professional Center in April of 2017. Tenants can choose to customize their space with private restroom facilities and kitchenettes. Current available built to suit offices range in size from 1,500 sf (+/-) up to 7,000 sf (+/-) of medical or office space for lease. With the addition of Building Three, Raritan Valley Professional Center now offers 82,000 sf (+/-) of mixed use real estate for business expansion and creation in Somerset County, New Jersey.

Raritan Valley Professional Center is conveniently located near the Raritan Valley Country Club and three major Somerset County shopping centers - Somerset Circle Shopping Center, Somerset Shopping Center and Bridgewater Mall. The property is easily accessible from Routes 22, 28, 31, 202, 206 and Interstates 78 and 287, making the center a popular location for business and medical offices.

Larken Associates is proud to say Raritan Valley Professional Center is now a highly successful Class B medical and office complex, fulfilling its clients’ every need. For commercial leasing information call (908) 874-8686, or visit

About Larken Associates
A two-generation, family-owned business since 1965, Larken Associates is widely recognized as one of the region’s fastest growing and most well-respected real estate firms. Based in Branchburg, NJ, Larken is responsible for developing and managing prominent residential and commercial projects throughout New Jersey, New York and Eastern Pennsylvania.