A development team has broken ground on a project that will bring 600 apartments and townhomes to the site of what was a sprawling highway office park in Parsippany.

Eight new restaurants are coming to Newark’s Gateway Center, marking the latest step in a $40 million overhaul of the four-building office complex and its signature concourse.

An apartment owner has sold a 10-building, 641-unit portfolio in East Orange for $113 million, in a newly announced transaction by Gebroe-Hammer Associates.