Buildings are complex structures that require regular inspections. The older they are, the more frequently they must be inspected. Current inspection methods include Manual Inspection using ropes, ladders, scaffolding, gantries, and vehicle lifts for access. Drone-based External & Internal building inspection technologies allow inspectors to get more details about the structures while remaining safely on the ground. By accessing the difficult-to-reach and tight spaces, drones can capture additional information that an inspector would not have managed using conventional means.