Expert Land Surveyors in Littleover

Most topographic, surveys will include both 2D & 3D .DWG cad drawings, PDF layouts/plots from the 2D model and any other supporting files. We will ultimately customise our proposal to your specification and we can provide data in a wide range of formats.

Benchmarks are an antiquated network of permanent marks/markers positioned around the UK to provide a reference height above Ordnance Survey Datum (mean sea level). Since the advent of GPS technology, these are longer updated or maintained - however the historic height values can still be obtained.

Contours can be useful in 2D and 3D, but they traditionally represent 3D information (elevation or height of land), in a 2D format. Horizontal curved lines connect points on the map with the same elevation values - which allow the terrain to be interpreted. Experience reading contour maps allows you to visualise the lay of the land in 3d, using a 2d medium.

A determined boundary application to Land Registry consists of a plan prepared by a qualified land surveyor acting on behalf, or with agreement from both parties (either side of the boundary). Evidence to support the plan should be included in the application. It is a more precise description of the exact line of the boundary than the red line, general boundary found on a common title plan.

All of these digital or computerised models contain varying degrees of detail about the position and heights of features in the survey area. Elevation models typically contain a grid of spot heights (only at ground level), where as surface models will include elevated features such as tree canopies and building roofs. A DTM (digital terrain model) is a more detailed elevation model, including linework for features such as banks, rivers, roads and other features. A land surveyor will typically produce a DTM of a survey area when producing a topographical survey and may use 3rd party data from a digital elevation model to provide information on off site areas without access. Historic surface models may be useful to mass model structures which were not modelled before demolition.