At completion it is highly advisable to engage a licensed building inspector to undertake a defects inspection. Irrespective of the professionalism of your builder, there can be small things (even like a cracked tile or an area of missing paint) that are overlooked that need to be repaired prior to handover.
The cost of the inspection report is usually between $250.00 and $450.00.
A licensed building inspector will send you a detailed report including photos of any issues that need to be addressed and this is sent to the builder who normally have 40 days to complete all repairs.
Once these repairs are complete, the keys are handed over to you and your new investment property is ready for tenants.