Historic England published an article on Drones for Heritage Uses, that can serve as a guide to how and why use drones in heritage management.
Drones are widely available to the public, and while their use is regulated in various degrees internationally, they can be a valuable and relatively cost effective tool for heritage.
This article can be your introductory basis of heritage use of drones, whether you are a professional working on a plan or even as an individual owner of a drone you can participate on heritage promotion. Participation from the public in heritage promotion and protection is the corner stone of effective heritage management. Therefore, the photos and data you gather are more useful than you think, share them!