Topographical Survey

Twenty20 Surveys

With over 20 years of experience, Twenty20 Surveys specialises in producing accurate topographical site surveys. We take great pride in delivering survey deliverables that set us apart from the competition. Our commitment to providing clean, accurate information empowers you to make informed decisions and reduces the risks associated with your projects.


When it comes to topographical site surveys, precision and attention to detail are paramount. Our team of skilled surveyors utilises the latest surveying technology and techniques to capture comprehensive data about the physical features and contours of a site. We ensure that every detail is accurately measured and documented, providing you with a clear and detailed representation of the site.

What truly distinguishes us is our survey deliverables. We understand that the quality and clarity of the information we provide are crucial to your decision-making process. Our survey outputs are meticulously prepared, organised, and presented in a user-friendly format, enabling you to easily interpret and utilise the data. Whether you require detailed maps, elevation profiles, or 3D models, our deliverables will provide you with the clean and accurate information you need.

By partnering with Twenty20 Surveys, you can have confidence in the accuracy and reliability of the topographical site surveys we produce. Our experienced team, combined with our commitment to delivering high-quality survey deliverables, ensures that you receive the information necessary to plan and execute your projects effectively.

Reduce risks and make informed decisions by choosing Twenty20 Surveys for your topographical site survey needs. Contact us today to discuss your project requirements and experience the difference of working with a trusted and experienced surveying partner.


What is a
Topographical Survey?

A Topographical Survey, sometimes referred to as a Land Survey, is the process required to produce an accurate and detailed map identifying both the natural and man-made feature within an area. The collected data may be presented in many formats, from a simple paper plan to a full three-dimensional (3D) digital model, depending on the client’s requirements. Today the most common presentation is as a digital data set which is also plotted out as drawings. 


It is worth bearing in mind that a survey prepared for one purpose is not necessarily going to be of sufficient accuracy or detail to be used for another. For example, surveying the outline of buildings that are to be demolished is not carried out in the same detail as a measured building foot print. Whatever the project being considered, accuracy in planning is the key. A thorough survey reduces the possibility of making costly mistakes at a later stage if unforeseen problems are uncovered.

Why is a Topographical Survey required?

The existing detail of an area may be required for either record or planning purposes. Other information, such as areas and volumes, may be calculated from a survey.

Purposes to which a Topographical Survey may be used include:

  • Housing estate or commercial redevelopment design layout
  • Highway or railway design
  • Cadastral Survey
  • Location of neighbouring property details and boundaries for rights of light or party wall issues
  • Sale or acquisition of land
  • Locating specific items of detail
  • Development or alterations to land use
  • Showing the existing layout of surface features and services (Underground services are in a separate guide)
  • Location of trees and tree canopies, on or off the site
  • Modelling and visualization of the ground in 3D
  • Historical records