City Tech is located at 186 Jay St, Brooklyn, NY 11201
For those taking the Subway, here are several local stops in the area. For those driving or taking a Lyft, Uber, or Taxi, see below.
If you are coming from Manhattan, take the Manhattan Bridge and use the Upper/Outside level. Take the first exit on the Brooklyn side. Local street parking might be found early on a Saturday morning. If not, there is a parking lot around the block. On the map below, it's called Sand Parking and is just above the left text bubble.