Scan to BIM for Architectural Technicians: When 3D Scanning Saves Time and Rework
Architectural technicians work with existing conditions data daily — and inaccurate survey drawings are a primary source of rework. Here is how 3D laser scanning and scan to BIM eliminates those problems.
The Rework Problem
| Source of Rework | Impact | | --- | --- | | Inaccurate existing drawings | Design clashes with structural elements | | Missing dimensions | Wall positions wrong in model | | No levels data | Ceiling void clashes with MEP | | Outdated surveys | Site constraints missed | | Manual measurement errors | Bespoke joinery doesn't fit |
How 3D Laser Scanning Fixes This
| Process | Benefit | | --- | --- | | Laser scan captures everything visible | No missing dimensions | | Point cloud with millions of data points | Accurate as-built geometry | | Level data included | MEP coordination accurate | | Digital deliverables | Direct import to Revit/AutoCAD |
Scan to BIM Workflow for Architectural Technicians
| Step | What Happens | | --- | --- | | 1. Site scan | 3D laser scanner captures full building | | 2. Point cloud processing | Registered point cloud delivered | | 3. CAD modelling | Floor plans and elevations modelled | | 4. BIM model | Revit model at agreed LOD | | 5. Deliverables | DWG, PDF, RVT, IFC as agreed |
LOD Levels for Architectural Technicians
| LOD | What It Means | Use Case | | --- | --- | --- | | LOD 100 | Conceptual model | Early-stage design | | LOD 200 | Approximate geometry | Design development | | LOD 300 | As-built geometry | Construction documentation | | LOD 350 | As-built + connections | Detailed coordination |
What Architectural Technicians Get
| Deliverable | Format | Use | | --- | --- | --- | | Point cloud | E57, LAS, RCP | Full site capture | | Floor plans | DWG, PDF | Background drawings | | Sections | DWG | Design reference | | Revit model | RVT, IFC | BIM coordination | | Levels data | CSV | MEP coordination |
When Scan to BIM Is Essential
| Project Type | Scan to BIM Essential? | | --- | --- | | BIM Level 2 projects | Yes | | Complex geometry | Yes | | Heritage buildings | Yes | | MEP coordination required | Yes | | Simple residential extension | No |
2025 Scan to BIM Costs (ex VAT)
| Property Size | LOD 200 | LOD 300 | LOD 350 | | --- | --- | --- | --- | | Up to 500sqm | £800–£1,200 | £1,200–£1,800 | £1,800–£2,500 | | 500–2,000sqm | £1,200–£2,000 | £2,000–£3,500 | £3,500–£5,000 | | 2,000sqm+ | £2,000–£4,000+ | £3,500–£7,000+ | £5,000–£10,000+ |
Frequently Asked Questions
Q: What LOD do architectural technicians need?
LOD 200 for design development. LOD 300 for construction documentation. Specify your LOD requirement when commissioning.
Q: Can the point cloud be imported directly into Revit?
Yes — E57, RCS, or RCP formats import into Revit via the Point Sense or Recap plugins.
Q: What if I only need floor plans?
Specify scan to CAD (DWG output) for floor plans and elevations only. Scan to BIM is needed for 3D modelling.
Q: How long does scan to BIM take?
Site scan: 1 day per 2,000sqm. Model delivery: 5–15 working days depending on LOD.
Q: What if I need revisions after delivery?
Professional scan to BIM includes revisions within agreed scope. Specify revision requirements when commissioning.