Buying new-build property comes with several benefits. One of which is buying a property that is in immaculate condition.
A pre-completion visit is your chance to ensure the property is in an acceptable condition.
Most quality developers will offer buyers the chance to view and inspect properties before completion. These visits often coincide with a home demonstration, which itself is well worth your time, do attend these.
This is the time for you to thoroughly inspect the property to make a complete list of snags and defects and get them in writing. It is likely that some of these items might not be rectified by the time you move in; however, most should be sorted, especially the items that affect the quality of living.
There are also professional inspection services, a few who I would highly recommend, and they go into great detail checking and testing everything for you and writing a detailed report for both you and the developer. This I feel is a worthwhile expense if you don't have the time or knowledge to do an in-depth inspection yourself.
With most new-builds today only, defects can be reported after completion, not snags as there is likely no way to prove it was not caused or created by the occupiers.
Get this done before you complete, and a lot of pain and hassles will be avoided down the line.
If you are in the process of buying new-build, get in touch with your developer or agent and ask them what the process is/will be before the handover.
As a point of reference; we assist and attend all our clients home demos and handovers to ensure everything is in order.