Laser scanning complex architectural details at multiple levels
The external simplicity of the building’s appearance conceals a deceptively complex reinforced concrete frame structural design. While the multiple changes in levels and carefully arranged architectural details required expertise to measure precisely.
Using 3D HD laser scanners enabled the surveyor to prepare a single point cloud data file which helped illustrate complicated relationships between the different elements of the building.
For example, the original car park ramps converted into a creative office studio presented a complicated challenge to capture. This included the spiralling curvature of the internal and externals walls, the relationship between the original car ramp and the new internal stairs, and the offset angle of the iconic Crittal windows.
Measured survey included Grade 2 listed facades
The measured building survey comprised the external Grade 2 listed facades, roofs and six floors of occupied office space covering 6,200 square metres requiring over 600 laser scans to capture.
The site survey was completed in five days and the subsequent Revit® model delivered six weeks later.
The model will enable the architects to better understand the building during their redesign process, to create a new and exciting co-working office space while maintaining the authenticity and architectural integrity of the building.
Collaborating to refine the survey specification
Although rapid mobilisation was important it was also critical to spend time collaborating with the Project Architect to develop a detailed schedule of their requirements and a clearly defined scope of services. This involved multiple site visits and many iterations of the quotation to ensure that it met the evolving project requirements in full.
This detailed approach and thorough preparation meant that our surveys were carried out efficiently, meeting the challenging project timetable and schedule of information needs while offering the client best value.
Technical challenges of surveying a Grade II listed building
Meticulous planning of every individual scan location ensured that sufficient overlaps were created so that all the changes in level were precisely captured and recorded in the registration process providing a high degree of dimensional accuracy.
Following the five day site survey, the point cloud was registered and shared with the client to enable them to commence their feasibility exercise of the building design. Due to the listed status of the building the Art Deco architectural features in the form of moulded concrete and coloured inset faience decorative detail, had to be captured and recorded in full within the model.
Owner of former Iconic Daimler HQ
We appointed CADS, because of their expertise. They were able to mobilise swiftly, working with us to develop the required survey specification and methodology. The survey was carried out efficiently without disturbing the occupants of the building and we subsequently received the complex 3D model of this beautiful building. This has enabled our architects or start work on creating a beautifully-designed interior with a variety of workspaces and meeting rooms
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