01 / 05Ground point
UK drone surveying, measurement and inspection
Every survey starts with a point. Drone surveys, mapping and inspections for sites across Great Britain.
02 / 05Measurement
Measuring the
ground point.
The surveyor records the point with a GNSS rover. This known position ties the aerial imagery to coordinates on the ground.
03 / 05The surveyor
Meet the team
in the field.
Since 2014, DTA’s in-house pilots and survey technicians have worked across England, Scotland and Wales.
About DTA04 / 05The approach
The site
from above.
Explore what the aircraft captures, from site levels and stockpiles to the condition of a roof.
05 / 05The landing
What do you
need to survey?
Tell us where you’re working and what you need from the survey.
Four ways we turn flights into site intelligence
-
Digital topographical surveying
Whole sites captured in a day and delivered as plans, contours, point clouds and 3D models.
- FOR
- Construction and civil engineering, infrastructure and utilities, architects, planners and building surveyors, landowners and agents.
- OUTPUTS
-
- Orthomosaic imagery
- Topographical plans and contours
- Point-grid drawings with spot levels
- Point clouds, aerial and terrestrial merged
- DTM, DSM and 3D models
- CAD and GIS outputs (DWG)
- PROOF
- A 600 ha estate surveyed by a two person crew in four days. Largest survey to date 2,600 ha.
Explore surveying
-
Volumes, grades & tonnages
Stockpiles, earthworks and landfill cells measured from survey data: repeatable, auditable, fast.
- FOR
- Quarries and aggregates, construction materials, excavation and fill, landfill and recycling, material movement audits.
- OUTPUTS
-
- Stockpile volumes
- Cut and fill earthworks
- Landfill cells and airspace
- Complex materials
- Quarry faces and benches
- Levels and grades
- Change over time from repeat surveys
- PROOF
- 1.7 cm GSD and 3.5 cm accuracy with 17 ground control points on a quarry survey.
Explore volumes
-
Drone inspections
Roofs, structures and hard-to-reach plant inspected in high-resolution detail, without scaffolds or work at height.
- FOR
- Building surveyors, property, estates and FM, renewable energy, industrial operators.
- OUTPUTS
-
- Roofs
- Industrial structures and stacks
- Wind turbines
- Confined spaces
- Culverts and watercourses
- Elevated masts
- Thermographic surveys
- Defect records
- PROOF
- 144 roof and facade inspections in two months. A 13,000 m² warehouse roof.
Explore inspections
-
Media & project progress
Broadcast-quality photography, video and repeat progress records from consistent viewpoints.
- FOR
- Construction stakeholders, property and development marketing, heritage estates, planning and logistics teams.
- OUTPUTS
-
- Construction progress and stakeholder updates
- Promotional and corporate video
- Property and development marketing
- Historical project records
- Site overview footage for planning and logistics
- PROOF
- A 5.5 km construction progress video. HS2 footage broadcast on BBC News.
Explore media
The aerial data behind building condition reports
We partner with building surveyors across the UK, capturing high-end roof and elevation detail their condition surveys depend on.
You keep the client and the professional judgement. We supply the evidence.
Building condition surveysFrom enquiry to usable data
-
01
Scope & quote
Tell us the site and the outputs you need. We confirm scope and price (free, no obligation).
-
02
Plan & permissions
Flight planning, site liaison, risk assessments and any airspace permissions handled by us.
-
03
Fly & capture
Our own pilots capture the site, typically in a fraction of the time ground methods need.
-
04
Process & deliver
Data processed into the plans, models and reports your team can use straight away.
What you actually receive
Real outputs from real projects, not promises. Every deliverable arrives in formats your CAD, GIS or BIM workflow already uses.
Orthomosaic imagery
A single, measurable top-down image of the whole site.
Georeferenced · print & GIS ready
Topographical plans & contours
Traditional 2D drawings your engineers can design from.
CAD formats · levels & features
Point clouds
Dense 3D measurement data for design, BIM and analysis.
Aerial + terrestrial merge
3D site & terrain models
Digital terrain and surface models, plus interactive fly-throughs.
DTM / DSM · model fly-through
Volume reports
Stockpile and earthworks quantities, comparable survey to survey.
Volumes · levels · change
CAD & GIS outputs
Standard interchange formats used across surveying and civils.
Industry-standard formats
Trusted on the UK's biggest sites
- On HS2
- 6+ years
- greenfield surveys to viaduct completion
- Largest survey
- 2,600 ha
- believed the UK's largest by drone
- Operating since
- 2014
- owned and run by its two directors
- One campaign
- 144 roofs
- inspected in Central London in 2 months
"The outputs provided from the survey exceeded our expectations with a significant level of detail and accuracy."
A topographic survey, start to finish
A walkthrough of a drone topographical survey, from capture to deliverable.
Trusted by
From tier-one contractors to national utilities
Built for your sector
UK-wide, with our own pilots
We fly across England, Wales and Scotland with in-house pilots and survey technicians, never white-labelled subcontractors.
We've been surveying nationwide since 2014, with our heaviest coverage along the M4 and M5 corridors.
From our West Wales, Wiltshire and Cardiff bases, we plan and deliver work across England, Wales and Scotland, including controlled-airspace and multi-site programmes.
Coverage excludes Northern Ireland at present.
- West Wales
- Cwch Gwenyn, Llandeloy, Pembrokeshire SA62 6LJ
- Wiltshire
- 96 Curlew Drive, Chippenham SN14 6YQ
- Cardiff HQ
- 2 Alexandra Gate, Ffordd Pengam, Cardiff CF24 2SA
Strongest coverage
Tell us about your site.
Send the location and what you need. We'll come back with a clear scope and price.
Or we call you