ES203 is a 94-seat lecture theatre in the Engineering Building at the University of Newcastle's Callaghan campus. The university's venue-hire catalogue identifies a floor area of approximately 148 m² and lists it among teaching spaces that can be used for presentations, conferences and training when not required for classes. Installed venue AV and house lighting are part of the standard facility framework; catering, technicians and specialist event setup may need separate arrangements. Availability is explicitly subject to the university teaching calendar, so it should not be presented as a permanently available commercial meeting room. For current availability, rates and event-specific inclusions, contact the venue operator before booking.