Emergency workers used a pulley to lift the man out of the construction pit.
The site is the future home of a 36-story apartment building that will house 369 residential units.
It will join a growing list of high-rise apartment buildings that are beginning to dot the downtown Brooklyn skyline, along what planners are calling the Flatbush Avenue corridor.
The site used to be a low-rise building known as 10 MetroTech. The building was demolished last year.
