Site closure over the December / January holidays

The Powerhouse Ultimo construction site will be closed over the summer holiday period from Saturday 20 December 2025 to Sunday 4 January 2026 (inclusive). 

Works will resume on Monday 5 January 2026. 

The Community Information Line (1800 962 221) and Project inbox (powerhouse.ultimo@infrastructure.nsw.gov.au) will not be monitored during this period. 

For urgent enquiries, please leave a voicemail and we will respond as soon as possible. Emails will be attended to from Monday 12 January 2026.