Land surveying

ReSource provides, in addition to traditional land surveying services, new methods based on photogrammetry with drone technology. We can accurately deliver high-resolution georeferenced data at a low cost. We have already worked with several companies in Iceland and learn extensively the advantages of our approach.
Drone survey is useful where you need many points over a large area or to survey a difficult location and you’ll get an aerial image at the same time. We can make you save a lot on labour time and we process the data and deliver the desired format to our customers whether it is a simple picture, georeferenced orthophotograph, point cloud or even a 3D model or a video.


Land surveying for building and civil engineering projects can be a heavy and time-consuming task using the traditional GPS surveying methods. Our drones will map in high-resolution your site as well as deliver high-quality aerial pictures.

Once we deliver high-quality georeferenced orthophotographs including also the Digital Elevation Model (DEM) it is possible for the Engineers and designers to precisely draw all details with regular CAD software. No need to send a surveyor into the field a second or third time because you are missing some information, all is already in the data we deliver to you. 

If you do regular drone surveys you can also follow the evolution of your site and changes over time. It is the best tool when you are building and developing new areas.

Volume measurements

With a 5-20 minutes flight, we can give you an accurate measure of the large volume of material that no manual surveyor can provide you. This is a powerful tool for the building industry, road construction, quarries and waste management sector.

With further processing, we can also use drone data in regular CAD software to calculate volume and surfaces in between two defined surfaces. It is possible to calculate in advance the need for material removal or for an addition of material during building projects or landfills for example.


Accuracy is our main concern when we collect data. While the traditional method is to take points and interpolate in between, photogrammetry method delivers a high-density point cloud that can be later simplified depending on the need for a survey. Accuracy for X and Y axis is typically 2-3 cm.

Altitude accuracy may vary depending on the surface type and the flying conditions. For example, we have managed over 50 hectares area to obtain an error of less than 10 cm between real points and generated point clouds. This is highly accurate compared to interpolated points used in the traditional method as our points are describing real surfaces.

Video and photos

Sometimes a video or an aerial picture is far better than a technical drawing. If you need your audience to explore a site and you want to avoid them to travel, you can have a video presenting from the position of a bird in the area. It is also possible to use video shooting and pictures at different times over a project period for assessing advancement or the possible impact on the environment.