As-Built Documentation for Engineering Projects
Survey-grade existing conditions documentation for structural, MEP, and civil engineering analysis. Accurate data for retrofit design and analysis.
As-Built Documentation Use Cases for Engineering
How engineering organizations use our as-built documentation services
Structural analysis
MEP surveys
Retrofit design
Forensic engineering
As-built records
Benefits for Engineering
48% of construction rework stems from poor project data (FMI/Autodesk study). Accurate as-built documentation prevents costly surprises and reduces renovation change orders by 5-15%.
- ±2-4mm accuracy
- Engineering-grade data
- Analysis ready
- Reduce field time
- BIM integration
ROI: Accurate as-built documentation reduces engineering field time by 75%.
Equipment & Technology
- Trimble X12 (1.0mm accuracy)
- NavVis VLX3 (mobile SLAM)
- Leica BLK360 G2
- FARO Focus Premium
- DJI Matrice 4E (exteriors)
- Autodesk ReCap
Deliverables
- Registered Point Cloud (E57, RCP, LAS)
- BIM-Conversion-Ready Data Package
- Matterport 3D Virtual Tour
- Measurement Reports (PDF)
- 360° Photo Index
- QC Documentation
Frequently Asked Questions
Common questions about as-built documentation for engineering
What is as-built documentation?
As-built documentation records the actual existing conditions of a building or structure — dimensions, layout, MEP systems, structural elements — using 3D laser scanning for survey-grade accuracy (±2-4mm). Unlike original design drawings, as-builts reflect what was actually built, including field changes and modifications.
How accurate is laser scanning for as-built documentation?
Our Trimble X12 achieves 1.0mm accuracy at 10 meters, and our NavVis VLX3 mobile scanner achieves ±5mm (±3mm with control points). This far exceeds manual tape measurement accuracy of ±0.5-1 inch.
What file formats do you deliver?
We deliver registered point clouds in E57 (open standard), RCP/RCS (Autodesk ReCap), LAS/LAZ (GIS), and OBJ (3D mesh). All formats are BIM-conversion-ready for import into Revit, ArchiCAD, or other BIM platforms.
How long does as-built documentation take?
Field scanning typically takes 1-3 days depending on building size and complexity. A 10,000 sqft commercial building requires 4-8 hours of scanning. Deliverable preparation adds 3-10 business days for processing and QC.
How much does as-built documentation cost?
Costs range from $1,000-$4,000 for residential properties to $3,000-$15,000 for commercial buildings, depending on size, complexity, and deliverables. 2D CAD drawings from scan data add $0.15-$0.35/sqft. Contact us for a free project estimate.
Can you scan occupied buildings?
Yes, we regularly scan active facilities including offices, hospitals, and manufacturing plants with minimal disruption to operations. Our mobile SLAM scanner (NavVis VLX3) captures spaces in walk-through mode for the fastest field work.
What is the difference between as-built drawings and record drawings?
As-built drawings document actual existing conditions through field verification (measuring what is really there). Record drawings are revised design documents updated by the contractor to show changes made during construction. As-builts reflect reality; record drawings reflect intended changes to the original design.
When are as-built drawings legally required?
Many jurisdictions require as-built documentation before issuing a certificate of occupancy. Federal projects (GSA, DoD, USACE) mandate as-built records. Building codes, fire codes, and ADA compliance may also require as-built documentation.
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