Adelaide’s GPO building break-in causes hundreds of thousands of dollars worth of damage and major flooding

Police and fire crews have swarmed Adelaide’s prominent GPO building in the CBD after a devastating break-in that caused hundreds of thousands of dollars in damage.

A break-in at Adelaide's GPO building in the city has caused major flooding. Picture: Dylan Hogarth

A man has been arrested after a break-in at the GPO building in Adelaide’s CBD caused major flooding, resulting in a six-figure damage bill.

About 5.30am on Monday, police were called to the prominent business on Franklin St after reports of a break-in and damage to a vehicle parked out the front.

When police arrived they found a large amount of damage to a revolving door, a car parked outside with a smashed windscreen and damage to a second door along a laneway.

Inside they also found damage to fire extinguishers and water valves, which caused flooding inside the building.

Crime scene investigators remained at the scene for several hours as MFS firefighters and SES personnel continued the clean-up.

Police found a 36-year-old Victorian man inside the building – he was arrested and charged with three counts of property damage and serious criminal trespass.

He is expected to be refused bail and will appear in the Adelaide Magistrates Court on Tuesday.

Police investigated a break-in at Adelaide's GPO building in the city on Monday morning. Picture: Dylan Hogarth

Emergency services were also called to the scene. Picture: Dylan Hogarth

The building is currently being renovated as part of the Adelaide Marriott Hotel revamp.

The grandiose GPO clock towers above the luxury hotel, which opened its doors to the city last year.

Inside the GPO building as it undergoes renovations. Picture: Brett Hartwig