The snagging of a new build property on the Costa del Sol normally begins when all the works in the property have been completed and the developer is ready to deliver the dwellings, normally a couple of months before completion. Some developers allow the snagging to carry the snagging just after completion. It is always a great practice to carry the snagging before signing the title deeds, handling over the balance to the developer and obtaining the keys to the property.
Pro Tip:  By carrying the snagging just before completion, clients have much more leverage in getting the defects corrected.