The car park at Ann Court will close permanently from midnight.
88 spaces will be lost as Andium Homes breaks ground for 165 new flats.
The States voted in January to release the £37.8m loan needed for work to start, after the Chief Minister put the project on hold last year.
Senator John Le Fondré wanted a new States HQ built there instead, but politicians voted 26-20 in favour of giving Andium the necessary funds.
Work is due to start tomorrow (5th March), and be completed at the end of 2021.
Jersey's gender pay gap narrows slightly to 6.3%
There has been a slight improvement in Jersey's gender pay gap, but men continue to earn more than women.
New tenant sought for Les Creux Pavilion
Jersey's government is looking for some to take over Les Creux Pavilion in St Brelade.
Jersey Bulls player hospitalised in the UK after 'serious injury'
Harry Curtis is awaiting surgery after breaking his leg during last night's game.
'Sacred' Celtic ground in Grouville could be reason for coin hoard location
Archaeology magazine 'Wreckwatch' has used new research to delve into the mystery of why someone buried 70,000 silver Celtic coins in a Grouville field and never return for them.
Minister wants tougher powers over gas company
Tough proposed new powers would force Jersey's gas company to tell the government about potential threats to the safety and security of the island's supply.
Man charged over 'violent' lunchtime fight in town
A man has been charged over a 'violent' lunchtime fight with another man in town.
Jersey's government may change the way it deals with complaints
Jersey's government is working to find better ways of resolving grievances, and is asking the public for their experiences of the current system.
Recognised volunteers could win £200 for their sport organisation
Jersey Sport is launching a new scheme that celebrates the island's local sport volunteer workforce.
