As-built drawings for construction handover
As-built drawings record what was actually installed and constructed. They support project handover, operation, maintenance and future alterations.
trazo converts design drawings, site mark-ups, change records and specialist contractor information into a coordinated set of record drawings. We deliver DWG and PDF, with Revit and IFC available where BIM handover is required.
Foto del servicio
What the service includes
- Audit and classification of source information.
- Comparison of design drawings and recorded changes.
- Integration of site mark-ups and subcontractor drawings.
- Consistent layers, symbols, legends and title blocks.
- A register of unclear or missing information.
- Interim review issues.
- Final editable files and organised PDFs.
Architecture and building services
| Discipline | Typical information |
|---|---|
| Architecture | Final layouts, dimensions, finishes and changed details |
| Electrical | Distribution boards, circuits, routes and devices |
| HVAC | Plant, ductwork, pipework, terminals and schematics |
| Public health | Water, drainage, risers and outlets |
| Fire protection | Detection, suppression and equipment layouts |
| External works | Utilities, paving and installed site elements |
Frequently asked questions
What is the difference between design and as-built drawings?
Design drawings describe the intended work. As-built drawings incorporate recorded changes and describe the completed installation.
Who verifies the information against the completed work?
The appointed contractor, consultants, specialists or client validate the record. We produce the documentation from validated information and highlight discrepancies.
Can you verify changes on site?
We can inspect visible and accessible elements in Barcelona and Catalonia. Concealed services must be recorded during construction or confirmed by the responsible specialist.
Do you deliver editable files?
Yes. DWG is standard, with RVT or IFC included where agreed, plus the final PDF issue.
Tell us what you need.
Send us your project details and receive a firm, no-obligation quote within one business day.