Drone survey and inspection gallery

Drones give heritage sites a safe way to be inspected up close, especially useful where the fabric itself, as at this Chepstow site, is inherently unstable.

DTA drones and MASTs together deliver a complete structural inspection capability for heritage sites: fast, safe, thorough and cost-effective, as demonstrated at this St Davids survey.

Promotional aerial photography for St Fagans National Museum of History, part of a wider video project produced for the National Museum of Wales.

A second angle from DTA's promotional aerial work for St Fagans, showing more of the museum's open-air site and surrounding parkland.

A third view from the St Fagans project, capturing the museum's traditional Welsh buildings in their landscaped setting for the National Museum of Wales.

Aerial photograph of Dinefwr Park, captured in 2018 during a heritage site drone survey.

Aerial photograph of the ruined Bishop's Palace, captured on a February morning in 2018 during a heritage site drone survey.

A second aerial photograph of the Bishop's Palace ruins, captured later the same February morning in 2018.

A cropped aerial photograph of the Bishop's Palace ruins, showing a closer detail of the stonework.

A third aerial photograph of the Bishop's Palace ruins, captured in the late morning during the same 2018 survey.

A second aerial photograph of Dinefwr Park, captured in 2018 during the same heritage site drone survey.

A fourth aerial photograph of the Bishop's Palace ruins, captured around midday during the 2018 survey.

A fifth aerial photograph of the Bishop's Palace ruins, captured in the afternoon during the 2018 survey.

A sixth aerial photograph of the Bishop's Palace ruins, captured in the early afternoon during the 2018 survey.

Aerial photograph of a heritage site at Caerleon, captured in 2017 during a drone survey.

Aerial photograph of Stonehenge and the surrounding landscape, captured in 2017 during a drone survey.

Oblique aerial photograph of buildings on Castle Street, Cirencester, captured during a drone heritage survey.

Aerial photograph of the front elevation and gardens of Capesthorne Hall, captured during a drone survey.

Aerial nighttime photograph of the Balmoral Hotel clocktower in Edinburgh, with Princes Street visible, captured during a drone inspection.

A second aerial nighttime photograph of the Balmoral Hotel clocktower in Edinburgh, captured during the drone inspection.

Aerial photograph of Swansea Guildhall's clocktower, captured during a drone structural inspection.

A further aerial photograph of Swansea Guildhall's clocktower, captured from a different angle during the same drone inspection.

Early morning aerial photograph of Cardiff city centre and Cardiff Castle, captured during a drone survey.

Aerial photograph of a heritage site in Caerphilly, captured during a drone inspection.

Aerial photograph of the house at Hollycombe Estate, captured during a drone survey.

Aerial photograph of Kidwelly Castle, captured in 2016 during a drone heritage survey.

Aerial photograph of Morden Hall and its parkland, captured during a drone survey.

Aerial photograph of Pembroke Castle, captured in 2019 during a drone heritage survey.

Aerial photograph of Up Cerne Manor, captured during a combined drone measured building and roof topographical survey.

Aerial photograph of Whichford House and its grounds, captured during a drone survey.

Oblique aerial photograph of Rhymney Bridge, captured during a drone heritage survey.

A first oblique aerial photograph of Rhymney Bridge, captured during the same drone heritage survey.

Aerial photograph of Canterbury Cathedral and the city roofscape, captured on the day of DTA's Canterbury Castle Keep survey in July 2026.

Nadir drone photograph of Canterbury Castle Keep during the Levelling Up stabilisation and landscaping works, part of DTA's photogrammetry capture of the south and east walls inside and out.

Oblique drone photograph of Canterbury Castle Keep showing the flint and stone walls, blind arcading and the works compound, captured for the photogrammetry model.

An elevation orthomosaic of one wall face of Canterbury Castle Keep, produced from DTA's photogrammetry and the partner laser scan: a true-to-scale, distortion-free image of the masonry for the conservation team.