Scan-to-BIM Deliverables
| Deliverable | Format | Use | | --- | --- | --- | | Point cloud | E57, PTS | Primary data | | Floor plans | DWG + PDF | Design reference | | Revit model | RVT | BIM coordination |
2025 Scan-to-BIM Costs (ex VAT)
| Property | LOD 200 | LOD 300 | LOD 350 | | --- | --- | --- | --- | | 2–3 bed | £800–£1,200 | £1,200–£1,800 | £1,800–£2,500 | | 4+ bed | £1,200–£1,800 | £1,800–£2,500 | £2,500–£3,500 |
Scan-to-BIM vs Traditional Measured Building Survey: ROI Analysis
Two approaches exist for capturing existing building data: traditional measured building surveys and scan-to-BIM with laser scanning. Both produce drawings and BIM models. The choice affects cost, speed, accuracy, and downstream value.
This ROI analysis compares the two approaches to help you decide which is right for your project.
Cost Comparison
Traditional measured building surveys are less expensive upfront:
Traditional survey: from around 500 to 1,500 pounds for a typical property, depending on size and complexity. Lower equipment and processing costs.
Scan-to-BIM: from around 1,000 to 5,000 pounds for a typical property, depending on size and LOD. Higher equipment, processing, and modelling costs.
However, upfront cost alone does not determine value. Consider downstream costs avoided by using the right method.
Accuracy Comparison
Accuracy differs significantly between the two methods:
Traditional survey: Samples the building at discrete points — room dimensions, window positions, ceiling heights. Accuracy depends on surveyor skill. Complex geometry is approximated.
Scan-to-BIM: Captures everything — every surface, every feature. Point cloud provides objective data. Accuracy is consistent and verifiable.
For complex buildings — Victorian terraces, heritage properties, buildings with complex geometry — scan-to-BIM provides superior accuracy. Traditional surveys struggle with curved surfaces, bay windows, ornate features.
For simple buildings — rectangular offices, standard residential — traditional surveys may be sufficient.
Speed Comparison
Scanning is faster on site:
Traditional survey: Requires multiple visits for detailed measurement. Complex buildings may take several days.
Scan-to-BIM: Captures millions of points in minutes. A full building scan may take hours. Fastest method for large or complex buildings.
However, scan-to-BIM requires post-processing time — point cloud registration, cleaning, BIM modelling. Traditional surveys have less post-processing.
Net time comparison depends on building complexity. For complex buildings, scan-to-BIM is faster overall. For simple buildings, traditional surveys may be faster.
Data Completeness
Scan-to-BIM captures more data:
Traditional survey: Produces 2D drawings. Data is limited to what the surveyor measured. Missing features are discovered later.
Scan-to-BIM: Produces a point cloud — a complete 3D record of the building. All surfaces captured. Missing features discovered in processing rather than on site.
Point cloud data can be reprocessed to extract additional information. Traditional surveys cannot be supplemented without returning to site.
BIM Model Quality
BIM models from scan-to-BIM are more accurate:
Traditional survey BIM: BIM model is only as accurate as the surveyed data. Approximations in the survey become approximations in the BIM.
Scan-to-BIM BIM: BIM model is derived from comprehensive point cloud data. Geometry is accurate and verifiable against the point cloud.
For projects requiring BIM models, scan-to-BIM produces superior results.
Downstream Cost Avoidance
The real ROI analysis considers downstream costs:
Design errors: Accurate base data from scan-to-BIM prevents design errors caused by inaccurate existing drawings. Design errors discovered on site are costly to fix.
Construction clashes: BIM models from scan-to-BIM enable clash detection before construction. Clashes discovered on site cause delays and cost overruns.
Rework: Discovering unknown conditions during construction causes rework. Scan-to-BIM reveals unknown conditions before design is finalised.
Disputes: Point cloud data provides objective evidence for damage disputes. Traditional surveys provide less comprehensive documentation.
These downstream costs can far exceed the upfront survey cost difference.
When Traditional Survey Is Sufficient
Traditional measured building surveys are sufficient when:
Simple geometry: Rectangular buildings with standard construction. No complex features requiring comprehensive capture.
2D deliverables only: Drawings are the required output. No BIM modelling needed.
Tight budget: Budget is constrained and BIM downstream benefits are not needed.
Fast turnaround needed: Traditional survey may be faster for simple buildings if BIM modelling time is eliminated.
For straightforward residential properties or simple commercial spaces, traditional surveys may be the right choice.
When Scan-to-BIM Delivers Better ROI
Scan-to-BIM delivers better ROI when:
Complex geometry: Victorian terraces, heritage buildings, buildings with curved surfaces or intricate features. Traditional surveys approximate these; scan-to-BIM captures them accurately.
BIM required: The project requires a BIM model. Scan-to-BIM produces a more accurate BIM from comprehensive data.
Clash detection critical: MEP coordination, structural coordination, or multi-discipline coordination is required. BIM models from scan-to-BIM enable clash detection.
Verification needed: As-built verification against design is required. Point cloud data provides objective verification.
Long-term value: FM records, future alterations, or asset management require accurate building data. Point cloud data supports these needs.
For complex buildings and projects requiring BIM, scan-to-BIM delivers better value.
Total Cost of Ownership Analysis
Consider total cost of ownership, not just upfront survey cost:
Traditional survey total cost: Survey cost plus downstream costs for errors, rework, and incomplete data.
Scan-to-BIM total cost: Survey cost plus value from comprehensive data, BIM models, and clash detection.
For projects with significant downstream risk — complex geometry, BIM requirements, tight coordination — scan-to-BIM often has lower total cost of ownership despite higher upfront cost.
Decision Framework
Use this framework to decide:
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Is the building simple geometry — rectangular, standard construction?
- Yes: Traditional survey may be sufficient.
- No: Scan-to-BIM provides better ROI.
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Is a BIM model required?
- Yes: Scan-to-BIM delivers better BIM quality.
- No: Consider whether BIM benefits justify scan-to-BIM cost.
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Is clash detection important?
- Yes: Scan-to-BIM BIM models enable clash detection.
- No: Traditional survey may be sufficient.
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Is the building heritage or complex?
- Yes: Scan-to-BIM provides superior accuracy.
- No: Consider project-specific factors.
Fixed-Fee Survey Options
icelabz provides both traditional measured building surveys and scan-to-BIM services. We advise on the right approach based on your project requirements.
Both services are fixed-fee with no hidden charges. Contact icelabz for a quote.