HACKETTSTOWN, N.J. — CBRE has negotiated the $1.5 million sale of 999 Willow Grove Street in Hackettstown. The two-story, 45,000-square-foot industrial building sits on 12 acres and features seven loading docks. At the time of sale, the property was 50 percent occupied by long-term tenants that have occupied the space for more than two decades on triple net leases. Charles Berger, Elli Klapper and Thomas Mallaney of CBRE represented the undisclosed seller in the transaction. The buyer was also undisclosed.