Case Studies

Real stories from real BIM people

Point Cloud to As-built Model of a Coffee Chain Outlet, USA


Published by:
Company: HitechDigital Solutions LLP
Location: New York City, United States

Firm: HitechDigital 

Type of Project: Point Cloud to BIM › Coffee chain outlet  

Area:  300,000 sq.ft. spread across 50 stores

Location of the project: Los Angeles, USA 

BIM tools & platforms: 
  • Autodesk Revit   
  • Autodesk Navisworks   
  • Autodesk BIM 360  
  • Autodesk Recap Pro 

Project Brief:  

The client is a leading surveying company based in the USA. They provide building survey, design, construction, and management solutions to a global clientele. For one of their projects, the client needed an as-built model of a coffee outlet to get a detailed roadmap for renovation and retrofit of 200+ coffee outlets in Los Angeles. 

BIM scope of work:  
  • Convert 3D laser scans into point cloud to BIM Models for future renovation and retrofit of 200+ coffee chain outlets.  
  • Create information-rich 3D point cloud to Revit models of the existing construction facility with +/-10 mm tolerance along with detailed floor plans, roof plans, cover sheet, site plan, elevations and sections in a short time frame of 16 weeks.
Input sent by the client:  
After an extensive extrapolation, the client was able to get photographs and data of the construction site through scanners and drones. They sent 3D laser scans, 360 degree photos, CAD scans and other reference images as input for the project. 



Input: Point Cloud Scan Files

Project challenges:  

  • Overcoming challenges of inaccurate scans and large volume of scanned data  
  • Making calculated assumptions for spaces that were not visible in scans was a time-consuming process  
  • Meeting a short project deadline of 16 weeks 

Execution of the Point cloud to BIM project:  

  • The team at HitechDigital analysed the 3D laser scans and point cloud data sent as input by the client. They segregated the files and deleted duplicate files.  
  • Then the team created an initial mesh model of the scanned data points to get a basic 3D topography of the store facility.   
  • For spaces with lower density of points, the team made calculated assumptions regarding the dimensions, and created a Revit model using references from the 360 photographs shared by the client and sent it to the client for approval.  
  • The team then developed cut sections along with detailed floor plans, roof plans, cover sheet, site plan, elevations and sections.  
  • Stringent QC and audits as per pre-defined parameters were conducted to ensure accuracy of all Revit (.rvt) files. 

Point cloud to BIM solutions/ deliverables 

HitechDigital’s team of 200+ Autodesk Revit certified experts created high quality FTR (First Time Right) deliverables. These included:   

  • A detailed 3D point cloud to As-built model with +/-10mm accuracy in 16 weeks

  • A combined PDF file with cover sheet, site plan, floor plan, building section, reflected- ceiling plan, above- ceiling plan, roof plan, interior elevations, etc. for building condition assessment.

image  image


Output: Interior and Exterior 3D Revit Models of Cafe

How BIM improved productivity for the point cloud project 

Using BIM for this project helped: 

  • Get precise spatial planning, material orders, and QTOs 
  • Improve interdisciplinary co-ordination  
  • Keep stakeholders on the same page with a real-time updated model 
  • Optimize workflows 
  • Get detailed information for future maintenance and repair of the property

What were the benefits of using BIM in the Project: 

  • Reduce overall project time and complete project within stipulated time
  • Save project costs due to improved decision-making
  • Accurate resource allocation
  • Improved collaboration among stakeholders
  • Short TAT (Turnaround time)

Project value addition with point cloud to BIM: 

Using point cloud to BIM enabled the client to: 

  • Get greater project clarity during the pre-construction stage  
  • Make smarter decisions regarding renovation and retrofit of the café  
  • Get savings of time and costs due to early identification and resolution of potential design as well as operational issues  
  • Improved project productivity due to project completion within time and budget

Type of Work
  • Building
How was the BIM Experience in the project?
Reality Simulation: Does it help to get an idea of the final product?
Waste reduction, labor costs and deviations
Greater control of the construction process
Improves collaboration between agents
Conflict resolution and clash detection
Correction and error handling
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