The AU$30 million ($18.8m/£14.9m) buildings are used by staff, volunteers, researchers, artists, scientists and the general public alike, which must have posed quite a challenge for Lahznimmo Architects. The building also has to maintain constant temperature and humidity levels to protect the artefacts, something Lahznimmo achieved by layering aluminum over thermal insulation and concrete wall panels.

A 11-foot (3.5m) high, 30-foot (9m) window gives the public a glimpse into the Very Large Object storage area, which holds carriages, planes and boats.

Powerhouse won the prestigious Australian Institute of Architects Sir Zelman Cowen Award for public architecture in 2024.

Stunning Australian architecture that’ll take your breath away