It's taken two years to build and cost taxpayers more than $45 million, but a new office block for Victoria's politicians has finally been unveiled.
The 102-office space at the back of Spring Street's parliament house will be largely off-limits to the public.
The architecturally-designed "annexe" boasts energy efficient measures such as a geothermal exchange system.
The building's construction allows for heritage areas of parliament to be freed up, restored and used for activities such as meeting rooms, community programs and information services about parliament.
The new building was opened by Victorian Governor Linda Dessau at a ceremony on Wednesday.