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Drone mapping has now come into its own. We can measure sites in a fraction of the time of conventional survey operations. That isn’t to say this technique is without limitations. As skilled land surveyors, we know the relative accuracies of data. We understand the limitations of drone technology. As a result, we can maintain precision across a project. While any drone pilot can make a map only a trained land surveyor has the depth of knowledge to deliver precise spatial data. We can map sites quicker than a conventional land survey takes and with better deliverables. As land surveyors, we know quality still counts when carrying out land surveys with drones. We apply this know-how throughout our drone mapping services.

For the ultimate service, we take an integrated approach to data gathering and can provide visually rich and accurate deliverables as 3d models.

Aerial-based Land Surveys offer the best data coverage, and accuracy, with highly visual deliverables using Airborne Photogrammetry and Lidar/Laser Scanning.

Faster

Faster than a conventional survey

Cheaper

More cost effective than a traditional survey

Safer

Less boots on the ground in risky or inaccessible locations

Accurate

High relative and absolute accuracy

Repeatable

Targeted and repeatable data acquisition

Coverage

Maximised efficiency, data coverage and deliverables

Read more about the 6 reasons why you need a drone survey

DJI M300 with a GeoSlam payload. The GeoSlam was used to measure internally and externally – both from the ground and the air – for this land survey & measured building survey planning application site

Photogrammetry

Drones have brought about a renaissance in Photogrammetry. The origins of Photogrammetry stretch back over 100 years. Photogrammetry, until recently, has been limited to large-scale airborne flights using aeroplanes and helicopters. Yet, Advances in drone technology and the photogrammetry software behind them have revolutionised survey work. Overlapping photographs are used to calculate 3d points in a sparse point cloud, and then a dense point cloud before a 3d mesh model is created. The final step is to apply textures to the model.

DJI M300 being prepared for take off

DJI M300 with P1 Camera being prepared for take off

Drone mapping/drone land surveying: photogrammetry model/point cloud

Drone mapping: sparse photogrammetry point cloud with camera positions

Drone mapping/drone land surveying: detailed photogrammetry model/point cloud

Drone mapping: detailed photogrammetry textured mesh model

3d model view of drone land survey using photogrammetry and laser scan for land & measured building survey

Dense point cloud of a planning application site.

Drone quarry survey: Preview of ortho projection image and DSM altitude layer with scale

Orthographic image of a quarry site

Lidar Mapping

Lidar surveys have their own limitations but also some unique advantages. Lidar makes many return measurements at various levels. Effectively ‘peaking’ through the gaps in vegetation to measure the ground details below the canopy. This allows us to remove vegetation, revealing hidden ground details. We can then extract survey data in hard-to-reach areas with relative ease. Where required we can infill with traditional topographical survey equipment (total station, GPS etc.) to produce a drone topographical survey. Drone mapping is a game changer.

Drone Surveying DJI M300 drone with L1 lidar scanner

Drone Surveying DJI M300 drone with L1 lidar scanner

Lidar data is a valuable data set for 'seeing' inaccessible places hidden by vegetation

‘Seeing’ inaccessible places hidden by vegetation with Lidar data makes it a valuable data set

Drone mapping services

We are able to produce drone mapping surveys & models of ground survey-grade quality. We have a sound appreciation of data quality. Our skills as Land Surveyors, acquired with over 30 years of working in the trade, allow us to match the survey method to a client’s needs and specifications. For some projects, we can use the full range of methods and apply them to a project. We can combine photogrammetry data, Lidar data and ground survey data as required to produce a quality drone land survey or integrate the survey with a measured building survey for complete coverage of your project.

The most basic deliverable is a rectified and geo-referenced orthographic photograph of a project area. For construction monitoring/progression monitoring this may be sufficient on its own. However, a drone land survey will take the 3d data created and convert that into a survey-grade topographical survey.

Drone mapping – choosing the right drone

Choosing the correct drone for the survey required is important. The battery life, the camera type, wind resistance, the survey specification and the site itself are all important considerations when choosing which drone to use on-site. We have a number of drones of various sizes and capabilities. Small drones that can collect data for drone mapping in all the tightest of places. Large drones with different payloads to collect data for drone mapping across small to large areas. If you need a reliable drone mapping services then contact us today to ask us for a quote.

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