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land surveys

Land Surveying

An accurate and thorough land survey is crucial in any building development to allow work to proceed smoothly and cost-effectively.

land surveyors, architectural surveyors, land fill, setting out, building and boundary surveys, flood risk analysisSurveys should always be carried out as early as possible in the planning process. At the outset, we will highlight any site hazards or items that should be added to the survey remit.

The land survey will provide the boundary and detail within a site, as well as potential restrictions and problems that may be encountered, enabling architects, engineers and developers to plan site development from inception to completion.

When producing land surveys, accuracy is crucial but speed can be too. Whether it be green or brown field sites, industrial sites, urban sites, roads, quarries, refuse tips, land fills ... you can be confident that we have the experience, knowledge and equipment to provide first-class results.

Any level of detail can be recorded as part of a land survey, using the latest Total Station instruments and real time GPS. One man robotic systems enable a single surveyor to work efficiently alone on site where required.

Our services include: 

Topographic surveys drawn to an appropriate scale and showing all relevant features. Height information can be given as contours or spot levels.

  • Dimensional surveys
  • Level surveys using optical levels, digital bar codes staff levels and precise levels with invar staffs
  • Area measurement
  • GPS surveys for larger areas or where accurate control points or 3-D baselines are required
  • Digital Terrain Models (DTM) for cut/fill volumes and improved information reliability. Also for volumetric analysis
  • Tree surveys, which comply with British Standard 5837:2005, including reference numbers, trunk positions, height, stem diameter, canopy and branch spreads

land surveyors, architectural surveyors, land fill, setting out, building and boundary surveys, flood risk analysisLand Fill

Once a survey of the site has been produced, we can generate any number of proposed models using our Digital Terrain Modelling software, which calculates accurate volumes for areas such as stock piles, excavation or cut/fill operations.

Further surveys can be undertaken at regular intervals, or on specific material layers, to produce accurate quantities as work progresses.

Information can be provided in a variety of formats such as long and cross sections, colour- coded cut/fill model, or 3D model.

Survey Accuracy

In order to ensure that a survey provides the right amount of information for its purpose, we need to establish exact specifications regarding scale. This is because the scale dictates the level of accuracy required.

Bear in mind that in specifying your exact requirements, OS data needs to be used appropriately. For example, a building footprint should show the building in relation to any nearby buildings or features. Therefore, Ordnance Survey 1:1250 mapping is not suitable for accurately surveying the building interior.

Below is a table showing increasing scales and the corresponding increases required in the accuracy of the detail.

Please let us know if you have any queries relating to this at the outset.

Scale of plans

Accuracy

1:2500
+/- 2.4m
1:1250
+/- 1.0m
1:500
+/- 150mm
1:200
+/- 60mm
1:100
+/- 30mm
1:50
+/- 15mm