Construction BIM validation
On-site BIM validation for construction
DeltaARBIM overlays your IFC model on the real build, so your team catches clashes and verifies as-built work to within 2 cm, before it is buried. Built for GCs, MEP contractors, owners, and PMCs.
On a construction site, the build drifts from the drawing.
Set-out creeps off the grid, an MEP run fouls a beam, a wall moves and never makes it back to the model. Each one is cheap to fix while the work is open, and expensive once the next trade builds on top.

Set-out creeps off the grid
A few centimetres at the column line becomes a real problem by the time the frame is up and the cladding is being set out from it.

An MEP run fouls a beam
Coordinated in the office, built around an obstruction on site. The first anyone hears of it is the trade that cannot get through.

A wall moved and the model did not
The change was right, the record was never updated, and the handover model now describes a building that does not exist.
Found after the floor closes
Rework can run 5 to 9 percent of a project's cost (industry estimate), and most of it is found too late to be cheap.
The information standards a project is run to
Construction does not lack process. It lacks proof that the process survived contact with the site. These are the frameworks the model is already governed by.
Construction BIM validation, on the floor with the model.
DeltaARBIM opens your IFC model, anchors it to the floor with LiDAR, no markers or QR codes, then walk the space and see structure, walls, and MEP drawn over the real build to within 2 cm.
Structural verification
Confirm rebar placement and slab levels against the structural IFC before the pour.
MEP clash detection
Switch off every trade but the one you are checking, and find duct to beam clashes before fabrication.
QA and QC walkthroughs
Replace the paper checklist with a live overlay, and tag issues where they are.
As-built records
Capture what was actually built, so handover reflects the building rather than the drawing.
Trades on screen
Clash detected
Isolate one trade and a clash stops being an argument. The same controls run on site, offline, on the device your team already carries.
Live clash detection and as-built verification, on the device your team already carries.
DeltaARBIM has run on real builds, including two commercial complexes and a hospital, verifying structure, walls, and MEP against the model to within 2 cm.
- ±2 cm
- Works offline
- IFC native
- No markers
Independent verification for PMCs
As a PMC you answer to the owner, not the contractor. DeltaARBIM gives you independent, on-site BIM validation: tag every deviation to its exact spot in the model, hold each trade accountable, and hand the owner an audit trail instead of a description. Verify what was actually built, across all trades, on your own schedule and offline on site.
What construction BIM validation is worth when it catches something early.
A deviation caught while the work is open is a correction. The same one found after the floor closes becomes rework, delay, and dispute. On-site BIM validation moves the moment of discovery earlier, so the fix stays a fix rather than a rebuild.
- Corrected while the floor is open
- ₹1,80,000
- Found after five trades build over it
- ₹24,00,000
13 times the cost, for the same deviation. An illustrative example. Figures vary by project. See the full worked example.
See construction BIM validation on your own IFC model.
We will run a 30 minute walkthrough on an IFC model you send us, so you can judge the 2 cm for yourself before committing to anything.
- All industries we validate builds for
- How on-site BIM validation works, start to finish
- Book a demo on your own IFC model
- What is MEP? A guide to MEP coordination in BIM
- Defence BIM validation, fully offline on secure sites
- Data centre BIM validation in dense white space
- Hospital BIM validation, proven on a live build
- Industrial BIM validation for plants and factories
- BIM validation for architects and BIM managers
Construction BIM validation, asked and answered.
Bring your model. We will show you what does not match.
- Global availability
- Remote demos worldwide
- On-site visits available on request, on any plan. Client covers travel and accommodation.