A measured building surveyor is a surveyor who physically measures existing buildings and produces precise CAD drawings of their current state. Architects, planners and building professionals typically need measured drawings as their base information before they can design extensions, refurbishments or alterations - and measured surveys are often required alongside a planning application for an existing building. Modern measured surveys use a combination of traditional hand measurement, total station theodolites and 3D laser scanners (point cloud survey) to deliver high-accuracy drawings efficiently.
What they do
- Produce floor plans, elevations and sections to agreed accuracy and scale
- Carry out 3D laser scan surveys and process point cloud data
- Produce measured drawings from point cloud data in CAD or Revit
- Produce BIM models of existing buildings from survey data
- Carry out listed building record surveys for Historic England
- Produce lease plans and landlord/tenant floor area schedules
- Measure gross internal areas (GIA) and net internal areas (NIA)
- Survey complex or historic buildings with irregular geometry
- Combine measured survey with topographic data for site context plans
When you need one
A measured building surveyor is needed whenever accurate drawings of an existing building do not exist or cannot be relied upon for design or planning purposes.
Typical costs (UK, 2025)
| Job type | Typical cost |
|---|---|
| Measured survey (small house, plans only) | £500 - £900 |
| Measured survey (plans, elevations, sections) | £800 - £2,000 |
| 3D laser scan survey | £1,500 - £5,000+ |
| BIM model from survey data | £2,000 - £8,000 |
| Listed building record drawings | £800 - £3,000 |
| Hourly rate | £65 - £110 / hr |
Costs depend heavily on building size, number of floors and the complexity of the structure. Historic and listed buildings with irregular geometry take significantly longer to survey accurately.
Frequently asked questions
What does a measured building survey include?
A full measured building survey typically includes: floor plans of all levels and the roof; elevations of all four faces; sections through key areas. Drawings are measured to millimetre accuracy and produced in CAD at an agreed scale - typically 1:50 or 1:100. The level of detail and which elements are included can be agreed with the client.
What is the difference between a measured survey and a topographic survey?
A measured building survey covers the existing building structure - walls, windows, doors, steps and internal features. A topographic survey covers external land and site features including levels, trees, boundaries and services. Many refurbishment and extension projects need both surveys, and they are often commissioned together.
What is a point cloud survey?
A point cloud is a 3D dataset produced by a terrestrial laser scanner that captures millions of precise measurement points simultaneously. The data can be used to produce measured drawings or BIM models far faster than traditional methods, particularly for complex or large buildings. It also provides a permanent accurate record of the building's condition at the time of survey.