This question frequently arises with leaders in the building construction industry. And, although there are 3D Scanning benefits throughout all phases of the building process; ideally a 3D Scan at the onset of your project will produce data of existing conditions you can rely upon.
The images and measurements that the 3D scan can produces are high resolution and technically precise which translates into accurate drawings from the very start! This also translates into less time with a crew field measuring.
Periodic scans offer project leaders and managers great insight throughout the construction process too. BIM specialists and trade coordination management teams have come to rely upon scans to validate information on demand, often resolving coordination questions with ease and accuracy.