Measured Building Surveys
Our clients are frequently required to submit accurate building elevation plans detailing their proposals and designs for the alteration or development of existing buildings. For this they must use a Measured Building Survey (MBS) which shows the accurate external elevation of a building or street scene.
Our 3D laser scanner and surveying team are fully equipped to capture all of the data our clients need, no matter how idiosyncratic the detail in the subject. At a data-capture speed of 1 million points per second, the point cloud that the scanner creates can be presented as a raw data-capture file (showing millions of measured points in high dynamic range (HDR) imaging), or presented as a 2D line drawing in either a DXF file or as a paper plan.
Our 2D External Measured Building Surveys are accurate line drawings of the external walls and features of a building. Examples of what can be picked up include floor levels, window and door openings (including sills), waste and water down pipes, changes in materials across the façade of the building as well is individual decorative features (such as the odd gargoyle). The external detail of a building can be represented in 2D or 3D formats in a DWG/DXF file or PDF.
Mansion in Goostrey
End uses of measured building surveys vary including:
- Developing basic plans for planning proposals (extensions or modifications)
- Plans required and created for historical purposes, for example, as a record of a building with full detailed stonework in its current state.
- Defining a visual representation of a building before it is knocked down, in order to maintain information for planning laws.
- Picking up the details of neighbouring buildings in order to continue the architectural integrity of a streetscape for a developer.
- Providing external elevations for a client in order to offer the full, integrated picture of the new design, planning or space management plans in development.
Due to their very nature external elevations are one of the most visually stimulating of all the maps and plans we provide and can be sent in a variety of digital formats to the client’s requirements.
Using the Leica P40 ScanStation we can take roof ridge heights to create a plan of a sloping or flat roof, picking up chimney stacks (and their heights), skylights, storm water pipes and waste pipes or any other structural detail required. There is very little need to enter roof space as the scanner can pick up all measurements to requirements in HDR imaging to a distance of 270m. If we must go up, our teams work in accordance with the Working at Height Regulations 2005 (WAHR), working from the ground for the majority of measurements and only entering roof space if there are sufficient safety mechanisms in place.
These types of site surveys support the commercial development of buildings for new or continuous use. They are usually requested to get an understanding of the area makeup or to support the streets scene that an architect has in mind. Our emphasis is on accuracy with all complex layout calculations following the Royal Institute of Chartered Surveyors (RICS) Standard Code of Measuring Practice (6th Edition).
Frequently Asked Questions
(1) What are measured building surveys?
Measured building surveys are drawings which show an accurate representation of a building’s existing facade or floor plan.
(2) What can Measured Building Surveys be used for?
Measured buildings are useful for a variety of end uses such as for:
- Refurbishment, redevelopment, alterations or structural changes
- Sale, acquisition, letting or land registry
- Facilities management or services layout
- Interior design layout
- Modelling, visualisation
- Health & Safety e.g. fire plan
- Rights of light, party wall issues
- Valuation or taxation
(3) What is surveyed on a measured building survey?
Major structural features such as floor levels, doors, down pipes and window openings are accurately positioned so any proposed features can be positioned by an architect onto plans with the confidence that the existing drawing is highly accurate.
(4) How accurate is an external measured building survey?
Extremely accurate, using our P40 ScanStation we can capture measured data from buildings in a point cloud format. A raw point cloud file contains millions of measured points captured in record quick time, it looks almost like a photograph when viewed on screen and from this our CAD technicians can create 2D elevation line drawings of the most intricate, yet idiosyncratic detail on a building. This is not possible with any other type of measuring device and enables developers to keep a record of the integrity of a building.