A strata apartment manager who built an 'Aladdin's-cave' inside the complex filled with hundreds of stolen items watched residents on an allegedly hacked CCTV system from his makeshift bedroom.

Jaden Hati, 42, was arrested late last month, following an investigation into the theft of hundreds of items stolen from the underground storage cages of residents in four strata complexes in Pyrmont.

Mr Hati had built an "Aladdin's cave" in the basement of the complex on Bowman Street, using rainwater tanks to construct a living space, complete with a bedroom, kitchenette, laundry and bathroom.

It can also be revealed he allegedly hacked a computer database at the complex, giving him access to security camera footage and allowing him to duplicate keys and electronic fobs to give non-residents access to the complex carpark.