Owner Mark Janasik says The Hub Brooklyn will open Jan. 31..

The three-level establishment at 400 Riverside Ave. comprises three restaurants: a Southern Grounds coffee shop; a Mediterranean-themed full-service restaurant called Alder & Oak; and Zorba’s Bar, a rooftop bar with appetizers and views of the city’s skyline and the St. Johns River.
It is near Forest Street., across from the FIS building at 347 Riverside Ave. and Morgan & Morgan law offices at 501 Riverside Ave.
In late 2025, Janasik said the opening date was fluid because major kitchen equipment still needed to be installed. He said he wanted to open the three restaurants simultaneously no later than Feb. 1.
As much as 95% of seating at The Hub will be outdoors, Janasik said. The emphasis on alfresco dining was designed to reduce interior space, which saves utility costs, and to inspire social activity, he said, adding that heaters, fans and landscaping would allow diners to eat in inclement weather.

Plans call for Southern Grounds to open at 6:30 a.m., then convert to a dessert and wine bar at 4 p.m. It will remain open until Alder & Oak and Zorba’s Bar close, anticipated to be 11 p.m. Sunday through Wednesday and midnight Thursday through Saturday.