Introduction
Drone surveys are increasingly used for large sites, roof inspections and progress monitoring, but they are not a drop-in replacement for every survey task. This article compares drone surveys with traditional total station and GNSS methods so you can choose the right approach. How drone surveys work and when to use them are covered in our guides.
Where drones excel
Drones cover large areas quickly, reduce working at height, and deliver orthophotos, contours and 3D models. They are ideal for open terrain, earthworks volumes, progress reporting and roof or façade inspection. With good ground control, accuracy can meet many construction tolerances.
Where traditional survey wins
Total station and GNSS surveys still deliver the highest accuracy on hard detail, small urban sites and setting out. Dense tree cover, narrow streets and fine internal detail are better suited to ground-based methods. Many projects use both: drones for coverage, total stations for control and critical detail.