Sydney's most anticipated new cultural venue, Powerhouse Parramatta, is drawing closer to its opening date, and early previews are offering a glimpse of what visitors can expect from the striking new institution in the city's west.

The museum represents a major addition to Sydney's cultural landscape, bringing a significant arts and science destination to the Parramatta precinct. As the opening approaches, those given an early look inside have described a space purpose-built to serve as a landmark cultural hub for western Sydney and beyond.

The arrival of Powerhouse Parramatta is expected to be a landmark moment for the region, signalling a broader shift in how Sydney's cultural infrastructure is distributed across the metropolitan area.