Planning and Building queries will now be heard at La Motte Street.
The helpdesk has left South Hill to move into the States new ‘one front door’ building.
Householders and the general public who have questions about building work on local properties, want to drop off applications or view location plans and historic files will need to head for Philip Le Feuvre House.
South Hill is now closed except for appointments.
Planning joins Taxes, Treasury, Passports and Customs in relocating, as part of Chief Executive Charlie Parker’s plan to bring all front-line customer services to one place.
There are more details about the move on the States of Jersey website.

Haut du Mont trial: Island Energy 'placed health and safety at risk'
Deportation recommended after sex-demanding attacker jailed
Teenage boy arrested on suspicion of sexual touching at Millbrook Park
Eyes up! It's Air Display day...
Haut Du Mont Trial: 'It could explode', jury hears 999 calls
Haut Du Mont Trial: Worker checking gas valves spent almost 'entire' time on his phone
Red Arrows still expected for Jersey Air Show
Haut Du Mont Trial: Gas works were 'sloppy, unsafe, and cut corners', allege prosecutors