Archaeovision took part in the UAV photogrammetry survey of the Grade I listed Guildhall building in the City of London. The purpose of the survey was to produce a condition survey report of the ceremonial and administrative centre of the City of London and its Corporation.

A photogrammetry model was produced using images captured by a pilot who has a rare license to fly within 10 metres of buildings. The system used was a Freefly ALTA 6 with a Sony a7R II camera.

With a high resolution model to work from, CAD elevations were produced for each elevation and top down view.