816 has always worked out of our Schools Pre-Engineering Classroom, though we've occasionally annexed other classrooms for our use.
Connected to that classroom are two more rooms, one of which is probably about 15'x15' which will be used for prototyping, programming and some other tasks, while the second room which is about 15'x30' houses all of our tools and is where we build the robot.
Depending on the year we'll either setup a partial field in one of the large unused rooms in the school or setup a full field in our "atrium".