Project at a glance:

Project 300 Acre Data Collection
Location Howden, East Yorkshire
Year 2020
Duration 3 Days

300 Acre Data Collection

Project Brief

LSTC was approached by a Yorkshire-based housing developer to collect comprehensive and accurate data for a 300 Acre site in East Yorkshire. Due to the sheer size and open nature of the site, it was decided that aerial drone-based photogrammetry would be the quickest solution to collect the large amount of data requested by the client.


  • To collect a large amount of accurate site data quickly and easily.

Our Approach

The imagery needed for photogrammetry was collected using a DJI UAV with a built-in GPS sensor and high-definition camera payload. This allowed for the collection of over 1500 high-resolution images in a single day of pre-programmed flight.

While on-site the surveyors established over 20 survey control points using GPS equipment, which was visible in the imagery and used in the post-processing stage for accurate registration of the images and to ensure that the outputs were to OS coordinates.

The 60GB of imagery was compiled and processed through Leica Infinity software, which analyses, orientates, and combines the images into one large point cloud.

Project Outcome / Deliverables

The large-scale point cloud that was produced allowed us to export numerous useful deliverables:

  • A complete site Digital Terrain Model (DTM) was produced at 1m point intervals
  • A grid of elevations was extracted to be used in the presentation of the topographical data
  • A contour plan was generated and used to illustrate the changes in site topography
  • A large and accurate orthoimage of the site was exported for use in

Due to the versatility and completeness of the point cloud data, further deliverables such as flatness reports, volumetric calculations, and phased analysis can be quickly and easily produced.

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