SCAN TO BIM | PUBLIC CIVIC BUILDING | UK, 2021

Public Townhall, UK

Tesla CAD UK converted point cloud data, PDFs and site photographs into a complete LOD 300 Architectural and Structural Revit model for a UK public town hall.

LOD 300 3D Revit model of a historic UK public town hall, showcasing detailed architectural facade elements and pitched roof structures.
High-precision Revit model developed from point cloud data for a public townhall.
4 levels incl. basement
LOD 300 full Arch & Structural
3 data types combined
3D Revit model of a UK public townhall, showcasing intricate architectural facade details, wall sweeps, window trims, and entrance steps.

Project at a Glance

Building Public Town Hall, UK
Project Type Scan to BIM | LOD 300 Revit Modelling | Architectural & Structural
Floors Basement + Ground floor + 3 upper floors (incl. subfloors)
Input Data Point cloud scans (RCS/RCP) + PDFs + site photographs
Level of Detail LOD 300
Software Revit
Deliverables Complete coordinated Revit 3D model (Architectural + Structural)
Year 2021
Project Overview

Overview

Historically, town halls were built to last. With their thick masonry walls, elaborate pitched roofs with dormers and sweeps, deep basements, formal staircases and floor-to-ceiling heights, they speak to a different era of civic architecture. They were also built before digital records existed. That means when one needs to be assessed or refurbished, the survey work comes first. The accuracy of everything that follows depends entirely on getting that record right.

This UK public town hall came with three floors above ground, subfloors, a full basement level, a complex pitched roof with dormers and the kind of architectural detail that takes years to accumulate.

The client had commissioned a point cloud survey, gathered supporting PDFs and assembled site photographs. What they needed was a BIM partner who could take all three input types and produce a single, coordinated, construction-grade Revit model from them.

Raw point cloud data scans of a UK public town hall, displaying both the complex exterior building facade and detailed interior architectural arches.
10mm High tolerance accuracy achieved from laser scan data processing.
Project Insight

The Challenge

Scan to BIM on a civic heritage involves more than a technical workflow. The point cloud captures what the scanner could see. The PDFs record what was drawn, sometimes decades ago. The photographs show what exists today.

None of these three sources tells the complete story on its own and where they conflict. The model has to resolve this discrepancy, not paper over it.

On this project, three things defined the challenges:

Roof geometry: The traditional pitched roof with dormers and detailed wall sweeps required precise geometric interpretation, especially where dormers intersect internal ceiling levels and the external facade.
Full interior scope: This was not a facade-only or shell model. Every internal architectural element (sanitary fixtures, fixed furniture, handrails, material specifications) had to be placed in precise alignment with the scan data. The interior of a public building of this age carries the same complexity as the exterior.
Structural integration: Columns, beams, staircases and railings had to be modelled within the same file as the architectural elements, coordinated and clash-free, across all four occupied levels.
Project Insight

The Approach

Step 1

Data Integration & Model Setup

The project began with point cloud data. RCS scan files were appended to an RCP container and imported into Revit. The project base point and survey point were set using the client’s reference inputs to establish real-world orientation. PDFs and site photographs were cross-referenced to validate scan data and address areas with limited or obstructed point cloud coverage.

Step 2

Architectural Modelling (External & Internal)

Working floor by floor from basement to roof, the team modelled the full architectural scope. This included the external walls, windows, doors, facade details with wall sweeps and window trims, internal floors ceilings and the pitched roof assembly with its dormers and associated junction details.

Fixed internal elements, such as the sanitary fixtures, furniture and handrails, were placed in position as recorded in the scan. Material specifications were assigned throughout, giving the model the asset information needed for future maintenance and refurbishment planning.

Step 3

Structural Modelling & Coordination

With the architectural model in place, the structural elements were built into the same file. The columns, beams, staircases and railings were each modelled to LOD 300 accuracy and coordinated against the architectural fabric. The completed model was reviewed for clashes and cleaned for dispatch as a single Revit deliverable.

Final Deliverables

The Outcome

The client received a complete LOD 300 Revit model covering the full Architectural and Structural scope of the building. Every element of the external envelope, every internal space and every structural member was coordinated, aligned to the point cloud and delivered within the agreed timeframe.

For a public building of this age and complexity, that model is the single source of truth for the building’s existing condition, supporting planning applications, refurbishment design and long-term asset management from one coordinated digital record.

LOD 300 3D Revit model of the UK public town hall, showcasing a cross-section view of interior floors, stairs, and structural elements.
Company Profile

About Tesla CAD UK

Tesla CAD UK is a BIM and CAD services company based in London, with delivery teams in India and Australia. Since 2007, we have completed over 5,000 projects for contractors, engineers, architects, and developers across the UK, Europe, North America, and Australia. Our expertise includes Architectural BIM, Scan to BIM, MEP Coordination, 3D Visualisation, and Heritage Modelling across all major sectors of the built environment.

Working on a Public or Heritage Building?

Whether you’re supporting a planning application, scoping a refurbishment or building an asset management baseline, Tesla CAD UK delivers Scan to BIM for civic buildings, listed structures, and existing buildings where the record has to be right.

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Visual Showcase

Project Gallery

LOD 300 3D Revit model of a historic UK public town hall, showcasing detailed architectural facade elements and pitched roof structures.
3D Revit model of a UK public townhall, showcasing intricate architectural facade details, wall sweeps, window trims, and entrance steps.
LOD 300 3D Revit model of the UK public town hall, showcasing a cross-section view of interior floors, stairs, and structural elements.
Exterior LOD 300 3D Revit model of the historic UK public town hall, clearly displaying the structural facade, pitched roofs, and dormer details.
Complete exterior point cloud laser scan of the UK public town hall, capturing the precise architectural geometry of the facade and pitched roof.
Raw 3D point cloud interior scan data of the UK public town hall, capturing the detailed structural layout of an arched ceiling and balcony.
Detailed 3D interior Revit model of the public town hall, showcasing an architectural arched ceiling, wooden balcony railings, and large windows.
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