Constructed in the late 1920s, the annex originally housed the State Library, State Museum and State Judiciary. Today it contains legislative committee rooms and offices. Severe water penetration was not only disrupting legislative operations at the New Jersey State House Annex; it had also caused damage to the building’s limestone colonnade façade.

After performing an initial condition inspection, designing a solution, and completing constructibility reviews, STV provided construction management and on-site inspection services for the New Jersey Division of Property Management and Construction (NJDPMC) and New Jersey Building Authority (NJBA) to replace the roof of the 150,000-square-foot building, which is a National and State Historic Landmark.