A measured building survey creates an accurate record of an existing building for architects, designers, developers and contractors. We capture the property and turn the measured data into usable floor plans, elevations, sections, CAD drawings, point clouds or Revit/BIM outputs to suit the project.
Accurate existing layouts, openings, walls, stairs and key internal geometry.
External/internal building geometry and vertical relationships where required.
Deliverables prepared for architectural, engineering and construction workflows.
Residential, commercial, heritage and complex existing buildings.
A measured building survey is an accurate, scaled record of a building as it exists at the time of survey. The site data is used to produce drawings or models such as floor plans, elevations and sections for planning, refurbishment, fit-out, design development, coordination and as-built documentation.
It is not the same as a building condition survey or RICS Home Survey. A measured building survey records geometry and dimensions; a condition survey assesses the building’s condition, defects and maintenance issues.
Measured Building Survey Deliverables
The right deliverable depends on how the building information will be used. Some projects need a simple set of existing floor plans. Others require coordinated plans, elevations and sections, an underlying point cloud, or a full Revit/BIM model.
Measured floor plans
Scaled plans showing existing wall positions, rooms, openings, stairs, columns and other agreed building features. Floor plans can be supplied as layered CAD/PDF drawings.
Building elevations
Measured elevations showing the visible external form of the building, openings, major architectural features and level information required by the brief.
Building sections
Sections through the property showing floor-to-floor relationships, ceilings, roof geometry, stairs and other vertical information where requested.
Registered point cloud
For laser-scanned surveys, the registered point cloud can be supplied as an additional measured record for review, coordination or future modelling.
Revit / BIM model
Where required, the measured survey can be developed into a coordinated 3D Revit model for architectural and BIM workflows.
Additional details
Roof plans, reflected ceiling information, structural features, selected details and other outputs can be included when clearly defined in the survey specification.
What Is Included in a Measured Building Survey?
A measured building survey should be specified around the design task. RICS measured survey guidance treats survey accuracy, control, coordinate grid, datum, measured building features and deliverables as connected parts of the survey specification. Not every feature is required on every job, so the scope should be agreed before site work begins.
Typical building geometry
- Internal and external wall positions within the agreed extent.
- Doors, windows and major openings.
- Columns, structural features and visible changes in wall thickness where relevant.
- Stairs, steps, ramps and level changes.
- Floor-to-floor relationships and key building levels when required.
- Visible roof form and external architectural features included in the scope.
Optional detail by specification
- Ceiling heights, beam soffits and selected structural levels.
- Internal roof/ceiling geometry where visible and required.
- Facade detail appropriate to the intended drawing scale.
- Fixed architectural features needed by the project team.
- Coordinate grid, project datum or alignment to other survey information.
- Point-cloud or 3D data in addition to conventional drawings.
Measured Building Survey vs Building Survey: What Is the Difference?
The names sound similar but the services answer different questions.
| Service | Main purpose | Typical output | Use it when… |
|---|---|---|---|
| Measured building survey | Record the building’s existing geometry, dimensions and spatial arrangement. | Plans, elevations, sections, CAD, point cloud or BIM model. | You need reliable existing drawings/data for design, planning, refurbishment or coordination. |
| Building condition / Home Survey | Assess condition, defects, repair and maintenance issues. | Condition report and professional advice. | You need to understand building condition, commonly during purchase, maintenance or defect investigation. |
RICS describes its Level 3 Home Survey as an in-depth assessment of a property’s condition, defects, repairs and maintenance. That is different from the geometric recording service described on this page. If you are looking for a purchase-condition report rather than architectural drawings, you need the appropriate building/home survey service instead. See the RICS explanation of home surveys.
When Do You Need a Measured Building Survey?
A measured building survey is normally commissioned when accurate existing information is needed before a project can be designed, coordinated, priced or documented.
Planning & extensions
Architects can use measured existing plans, elevations and sections as the base for proposed planning drawings and design development.
Refurbishment
Accurate existing geometry reduces reliance on old drawings or assumptions before layouts, finishes or building elements are changed.
Fit-out projects
Existing-condition drawings help design teams coordinate interior layouts, circulation and retained building geometry.
Heritage & complex buildings
Laser scanning can efficiently record irregular geometry, historic details and spaces that are difficult to capture reliably with isolated manual measurements.
Commercial properties
Offices, retail, hotels, warehouses and other commercial buildings can require coordinated existing data before alterations or fit-out work.
As-built documentation
A measured survey can establish a current record of visible existing conditions where reliable drawings are unavailable or out of date.
Already have drawings?
Old drawings can be useful reference material, but they should not automatically be assumed to match the current building. Send them with your enquiry and tell us what the new drawings will be used for; we can advise whether full capture or targeted verification is more appropriate.
How Does a Measured Building Survey Work?
Measured Building Survey Accuracy and Specification
There is no single accuracy or level of detail that is correct for every measured building survey. A small planning drawing, detailed heritage facade and coordinated BIM model do not necessarily require the same capture or modelling specification.
The RICS professional standard for measured surveys includes project information, survey accuracy, control, coordinate grid and datum, measured building surveys and deliverables. A good project brief therefore defines the required outcome before fieldwork starts rather than relying on a generic promise of “high accuracy”. RICS measured survey standard.
What should a measured building survey brief include?
- Property address and the exact survey extent.
- Intended use: planning, refurbishment, fit-out, coordination, record drawing or BIM.
- Required plans, elevations, sections and any specific additional views.
- Details that are especially important to the project team.
- Required drawing scale or level of detail if already specified by the designer.
- Any project grid, coordinate, datum or alignment requirement.
- Required output formats and CAD/Revit/BIM software requirements.
- Access limitations, occupied areas or restricted spaces that may affect capture.
Measured Building Surveys and 3D Laser Scanning
3D laser scanning is a capture method; a measured building survey is the service and project outcome. Laser scanning is particularly useful where a building has many rooms, complex geometry, irregular walls, detailed facades, difficult vertical relationships or a requirement for coordinated plans, elevations and sections.
3D laser scanning
Records dense spatial measurements from multiple scanner positions. The scans are registered together to form a coordinated point cloud of the visible building surfaces.
Point cloud survey data
The registered point cloud can be used as the measurement source for drawings and models, or supplied as a deliverable when the project team needs the underlying 3D data.
Measured Building Survey to CAD, Revit and BIM
The survey is only useful if the final data works in the client’s design workflow. We can take the measured dataset through to 2D CAD drawings or 3D modelling depending on the project requirement.
2D CAD
Layered floor plans, elevations and sections suitable for AutoCAD-based architectural and engineering workflows.
Revit / BIM
Existing-condition models developed from measured survey or point-cloud data when a coordinated 3D deliverable is required.
Point cloud to drawings
If you already have scan data, you may only need drafting rather than a new site survey. Use our Scan to CAD service.
Residential and Commercial Measured Building Surveys
The same underlying principle applies across building types: accurately record the existing building, then produce the level of information needed by the project team. The scope, access and deliverables change with the property.
Residential measured building surveys
Houses, flats and residential buildings for extensions, loft conversions, remodelling, planning applications, interior design and refurbishment.
Commercial measured building surveys
Offices, retail, hotels, warehouses and other commercial premises where larger floor plates, fit-out requirements or more complex coordination may affect the brief.
What Do We Need to Quote a Measured Building Survey?
A clear enquiry lets us price the right scope rather than making assumptions about what the project needs.
Property details
Send the address, approximate size or number of floors, building type and any access constraints you already know about.
Required drawings
Confirm whether you need floor plans only, elevations, sections, roof plans, reflected ceiling information or other specific views.
Project purpose
Tell us whether the survey supports planning, refurbishment, fit-out, interior design, coordination, BIM or another use.
Existing information
Old plans, estate-agent drawings, architect mark-ups, photographs and consultant briefs can all help define the survey scope even if they cannot be relied upon as current measurements.
How Much Does a Measured Building Survey Cost?
The cost of a measured building survey depends on the property and the required outputs. The same building can be priced very differently if one client needs floor plans only and another needs detailed elevations, multiple sections, a point cloud and a Revit model.
- Smaller, accessible property.
- Simple geometry and clear visibility.
- Floor plans only.
- Standard CAD/PDF deliverables.
- No unusual coordinate or modelling requirements.
- Larger or highly compartmented building.
- Complex geometry, heritage details or multiple elevations.
- Several sections or specialist views.
- Restricted access or occupied areas.
- Revit/BIM, point-cloud or detailed 3D deliverables.
Get an exact measured building survey quote
Send the property address, required drawings and any existing plans or architect’s brief. We will price the scope required for your project rather than adding unnecessary outputs.
Measured Building Survey Examples
Example drawings help define the right scope, drawing detail and output before survey work begins. You can also review our existing measured survey samples to see the type of plans, elevations and sections produced from survey data.
View measured survey drawing samples →
Measured Building Survey FAQ
What is a measured building survey?
Is a measured building survey the same as a building survey?
What drawings are included in a measured building survey?
How accurate is a measured building survey?
How is a measured building survey carried out?
Do I need a measured building survey for a planning application?
Can you survey an occupied building?
Can you use old plans instead of carrying out a new survey?
How much does a measured building survey cost?
What file formats can you deliver?
More Survey & CAD Services
Explore the related services below if your project also needs topographical data, laser scanning, point-cloud capture, commercial-property surveying or CAD production.
