The Annex at Microkeeper Arena is a substantial multi-use indoor area built around three side-by-side basketball courts. It offers flexible floor space for sporting activities as well as exhibitions, conventions and community events, with a small tiered spectator area and an adjacent meeting room. Groups considering a non-sporting layout should confirm floor protection, furniture, power, access and whether the adjoining facilities are included in their hire. This is separate from the arena's main Auditorium.