Survey of Residential Building

As-Built SURVEY AND Scan-to-Revit workflow OF RESIDENTIAL APARTMENT FOR DESIGN of remediation works AND ongoing maintenance.


Diospatial was engaged to produce a millimetre accurate Revit model and plan and elevation drawings of a residential apartment building. The scope included high resolution survey of all accessible internals, externals across the 4 storeys, including detail survey of 29 apartments, roof cavity and basement level.

The resulting data was to be used in engineering design and planning of future works and ongoing maintenance.


Diospatial developed a scan-to-Revit survey solution utilised terrestrial laser scanning to scan and capture internals and externals of the residential apartment.

Over 430 individual laser scans were registered to create a single point cloud of the entire site. The 43 external scans were captured with HDR imagery to colourise the final external point cloud and provide coloured imagery in the panorama tour software. The point cloud achieved an accuracy of approximately 5mm.

Autodesk Revit was used to develop an LOD200 model based on feature extraction from the point cloud data. From the Revit model, plans, elevations and cross-sections at any point in the entire building could be readily generated as required.

Laser scanning allowed for rapid capture of the entire building and delivered millimetre accurate plan and elevation drawings.

Field works were completed over 2 days on-site with a 2 person crew. Rapid acquisition meant minimal disruption to residential stakeholders. The resulting digital As-Built can be replied upon for engineering assessment, remediation scoping and to serve as a digital As-Built record for the strata corporate to utilise in to the future.

Terrestrial Laser Scanning
Terrestrial Laser Scanning
Digital As-Built Model
Digital As-Built Model
terrestrial laser scanning of residential apartment building for engineering assessment
Images were captured while completing the laser scanning of the building exterior which allowed the Revit model to be colourised. Furthermore the images could be used for visual inspection in panorama tour software.
The Revit model could be used to accurately design remediation works to the building. This removed the need for architects and engineers to go to site to complete manual measurements, and instead allowed them to remotely measure and design fabrication works with millimetre accuracy. Reducing the risk of errors during installation.
Plan and elevation view drawings could be inputted in to CAD to support architectural and engineering design planning of remediation works. This provided a millimetre accurate layout of all of the building features including doorways, wall, stairs, windows, windowsills, facade…everything.