Gloucester County, NJ
Williamstown, NJ
Real Estate Agents
John and Justin Kelly of The JK Realty Group represent buyers and sellers in Williamstown and the rest of Monroe Township, with experience in resales, new construction, and land.
Our experience here
Our Experience
in Williamstown
John and Justin Kelly have sold homes in Williamstown since 2009, representing sellers and buyers of resale homes and listing new construction for a builder in the township.
The team has also sold land in Williamstown and handled a rental here, and closed here again in 2026.
Real estate here
Real Estate
in Williamstown
Williamstown is the center of Monroe Township, one of the larger townships in Gloucester County, and its housing runs from older homes near the Black Horse Pike to subdivisions built out over the past few decades and new construction still going up on the township's open land. Monroe is one of the places in the county where a buyer can still choose between a resale and a newly built home.
Buying here
Buying a Home
in Williamstown
Buyers in Williamstown work with John and Justin on resale homes across the township and on new construction when a builder is selling, which in Monroe is often.
The team gives a plain opinion of each house against recent sales, explains how a builder's contract, lot, and upgrades work when the choice is a new home, and handles the offer and the purchase through closing.
Selling here
Selling a Home
in Williamstown
John and Justin have listed homes, new construction, and land in Williamstown for their owners and for a builder.
A Williamstown resale competes with the township's new construction as well as with other resales, and the team's valuation and marketing plan take both into account.
Gloucester County market, August 2026
Gloucester County
by the numbers
Single family homes, Gloucester County, August 2026. Source: NJ REALTORS®, updated monthly. County figures are the backdrop; a Williamstown price comes from closed sales in the township and the subdivision.
Selling in Williamstown?
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Property Value?
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Nearby Communities
In Their Words
“Justin did a great job finding the house I wanted. He made sure the lease terms were appropriate, helped with problems I had with the property and more. He is kind, accommodating and resourceful. He definitely knows what he is doing and does a fine job. Highly recommend!”
Wayne · Williamstown, NJ · Zillow review, 2018
Contact Us
Work With
The JK Realty Group
Buying, selling, or building in Williamstown? Contact John or Justin Kelly.
Reach out to our team. You're welcome to call, or send a note and we'll respond personally.