On-site BIM validation and verification

See if your building matches the plan. On site, on your phone or iPad.

DeltaARBIM overlays your BIM model onto the real structure, so you catch mistakes before they turn into rework. On iPhone, iPad, or Android, accurate to 2 cm.

Some teams call this BIM validation. Same idea, done on the real structure.

Book a free demo

Free demo on your own model. No fixed tiers. INR billing for Indian teams.

DeltaARBIM overlaying a 3D building model onto a real construction site on a phone.

±2 cm
Accuracy on site
Under 60s
IFC to AR
Offline
No signal needed
IFC
Open standard, no export

The real problem

The building rarely matches the drawing.

Six photographs from real jobs. Every one of them was signed off.

This is what as-built work looks like when nobody checks it against the model. On-site BIM validation catches these deviations while they are still cheap, not after handover.

01
Duct fouls the beam
02
Set out off the grid
03
Lines run uncoordinated
04
Conduit off the route
05
Wall opened after building
06
Formwork off the layout

Cheap to fix while you can still see it. DeltaARBIM runs on-site BIM validation, checking the as-built against your IFC model, so you catch the clash before it gets buried and turns into rework.

On site

On-site BIM validation, from your model to the wall.

One wall, start to finish. Scroll through it.

Watch one wall go from model to reality. DeltaARBIM loads your IFC model, anchors it to the floor with LiDAR, and shows the as-built against the design to within 2 cm. On-site BIM validation, in the time it takes to walk the wall.

A reinforced concrete frame on site, poured last week.

The same concrete frame with the IFC model drawn over it, showing where the built structure departs from the design.

02/09

On site

The drawing says one thing. The wall says another.

Sheet 04, the first floor slab plan open in DeltaARBIM, with the slab measured and the pick corner tool ready.

Scanning a real floor and wall corner while DeltaARBIM detects the floor plane.

Placing the anchor pin so the IFC AR overlay sits flush on the floor.

The live AR overlay on a wall on site, comparing the build against the model.

Step 1 of 4

Open the model.

Your IFC, on the phone in your hand. Pick the floor you are standing on.

Step 2 of 4

Scan the corner.

The app reads the floor and builds a grid off it. No markers, no QR codes.

Step 3 of 4

Drop the pin.

One anchor ties the model to the building. It holds as you walk.

Step 4 of 4

Compare.

The real wall against the model, on the same screen. Accurate to 2 cm.

Now you can see it.

The beam is 12 mm out and the sleeve is missing. The concrete on top of it has not been poured yet.

Live AR BIM

Switch off every trade but the one you are checking.

Live AR BIM clash detection, drawn over the real building. Structure, walls, HVAC, water and electrical, each on its own switch, so a clash becomes something you look at, not something you argue about.

AR LIVE

IFC

● LIDAR · ±2CM · 60FPS

⚠ CLASH DETECTED

What each layer tells you.

Structure

Columns, beams and slabs from your IFC, laid over what has actually been poured. Check the frame before the next lift goes up.

Walls and openings

See where a wall has moved or an opening was cut in the wrong place, while it is still cheap to move.

MEP

HVAC, water and electrical, each on its own switch. Show two trades and a clash stops being an argument.

Anchor points

LiDAR ties the model to the floor, so the overlay stays where you put it as you walk. Accurate to 2 cm.

Found something?

Flag it where you are standing. The issue reaches the office tagged to its exact place in the model, so nobody has to work out later which wall you meant.

→ See It On Your Site → How It Works

How it works

Every screen, start to finish.

Seven screens, from your IFC file to a checked wall. LiDAR anchors the model to the structure, and the whole thing runs on the iPad or phone your team already carries.

Every screen, start to finish

Screen 1 of 6Open the IFC

No markers. No QR codes. Works offline.

See it on your own model

What rework costs

One beam, framed the wrong way round.

Floor 3, grid C4 to C5. The model says the beam spans north to south. The steel on the floor spans east to west.

One deviation, and the only question is whether on-site BIM validation catches it now or you pay for the rework later.

428
Elements checked on the floor: 1
Deviation found: 6
Minutes to find it

Nothing has gone wrong yet. At this moment it is a drawing problem.

Corrected on the walk

One crew, one lift, and a revised connection detail, while the floor is still open.

₹1,80,000
Cost to correct: 2
Days added: 1
Trades affected

Corrected after the floor closes

If QA/QC or the site manager does not check the as-built against the model, the slab pours, the services run, the ceiling goes up over it, and the fix becomes rework.

₹24,00,000
Cost to correct: 26
Days added: 5
Trades affected

Same beam, same 90 degrees, 13 times the cost on these figures, because the fix is now rework: everything built on top of it has to come off first. Then delay damages of ₹13,00,000 are calculated per day against the contract sum and land on top, taking the exposure to ₹37,00,000.

On-site BIM validation catches it on the walk

Your IFC model, anchored to the floor with LiDAR and drawn over the real structure to within 2 cm. The deviation is on screen while the crane is still on site.

What you save

₹35,20,000
Exposure avoided: 24
Days protected: 6 min
Time to check the floor

The saving is the difference between the two columns above, not a separate claim.

An illustrative example. Figures vary by project.

Run it on your own model

What you get

Cut rework by catching the expensive mistakes while they are still cheap to fix.

On-site BIM validation turns clash detection, as-built checks, and QA/QC into a single walk of the floor.

Catch clashes before the concrete
Find conflicts on site while the fix still costs hundreds, not thousands.
Verify before the next trade builds on top
Quality control on site: confirm the work matches the model before it gets covered for good.
Stop reopening finished ceilings
Know what sits behind the wall without breaking it later.
Protect your handover date
Fewer surprises at the end means fewer delays and disputes.
Log it on the spot
The office gets the exact spot in the model, not a description, so nobody walks the floor again working out which wall you meant.
Hand over a building that matches its drawings
Give facilities as-built accuracy you can validate and trust for years.

A mistake caught in the model costs hundreds. The same mistake found after handover has cost projects millions.

Offline, on iPad Pro, iPhone, and Android, accurate to 2 cm.

Who it is for

BIM validation for teams who cannot afford to get it wrong.

01/06

Construction and Real Estate

Catch off-plan work before it is buried. On-site BIM validation for construction and real estate.

Rework can consume around 5 to 9 percent of a project's cost. Catch off-plan work before it is buried with on-site BIM validation for construction and real estate.

Industry estimates

See construction →

DeltaARBIM used on a construction site, for example construction site verification of a concrete frame against the model.

Data Centres

Data centre BIM validation, so what is installed matches the model before fit-out closes.

In a data centre, downtime runs into thousands of dollars a minute, so one missed clash is expensive. Data centre BIM validation confirms what is installed matches the model before fit-out closes.

Industry estimates

See data centres →

DeltaARBIM used in a data hall, for example data centre BIM verification of dense MEP runs, industrial BIM validation on live plant.

Defence

Defence BIM validation, offline and on site, with no signal needed.

On a defence site a few centimetres can compromise a structure, and there is often no signal to work with. Defence BIM validation runs fully offline, so accuracy never depends on connectivity.

See defence →

DeltaARBIM used on a defence facility, for example defense BIM validation inside an aircraft hangar.

Healthcare

Healthcare BIM validation: rated walls, medical gas and HVAC checked against the model before they are boarded.

An outlet in the wrong place or a rated wall built wrong is a clinical problem, not a snag, and confirming one after boarding means opening finished work back up. DeltaARBIM has been used on a hospital build.

See healthcare →

A rated compartment wall being boarded in a hospital corridor, with services still open behind it, the point where healthcare BIM validation happens.

Plants and Manufacturing

Industrial BIM validation: process piping, equipment foundations and structure checked before commissioning.

A pipe run set a few centimetres out takes the space the next trade needed, and a foundation cast off the model is not adjustable later. Industrial BIM validation catches both before commissioning, on site and offline.

See manufacturing →

Dense process piping running through an industrial plant, the conditions industrial BIM validation is carried out in.

BIM and AEC teams

BIM validation for BIM managers and architects, from IFC to the real structure.

A clash fixed in the model can cost a fraction of the same clash fixed on site. BIM validation adds a QA/QC layer that protects margins and your reputation on every handover.

See BIM teams →

DeltaARBIM comparing a coordinated model on screen to the built structure, closing the loop on as-built verification.

Why teams trust DeltaARBIM

Proven on real sites, and built around you.

DeltaARBIM is built by an Indian team that has run BIM validation and verification on three job sites: two commercial complexes and a hospital.

3real sites
Two commercial complexes and a hospital. Real jobs, not demos.
2cm
Accuracy between your model and the real structure.
Freedemo
Run on your own model, so you can check the accuracy before you commit.

Proven on: Commercial complexCommercial complexHospital
Built for: ConstructionHealthcareData centresDefenceInfrastructure
Construction methods: PrecastConventional

01
Built around your workflow
100% customizable. We build what your team needs, not a fixed feature list.
02
For the long term
A partner for teams that plan years ahead, not a one-off tool.
03
No markers, no QR codes
LiDAR anchors the model to the real structure. Just walk in and check.
04
Yours to run
Offline on site, IFC native, self-hosted option, and INR billing.

Early access

DeltaARBIM is in early access, and we take on a limited number of teams.

We work closely with each team we bring on, so we add them a few at a time rather than all at once.

Ask for a place

Locked-in pricing
The price you start on is the price you keep as the product grows.
Onboarding from the people who built it
Set up on your own model with the team, not a help page.
Your problems go on the roadmap
What you hit on site shapes what gets built next.

Pricing

Priced around your project, not fixed tiers.

We look at your team size, project scope, and budget, then build a plan that fits.

Starts with a free demo on your own model.
No per-scan or per-seat traps.
INR billing for Indian teams.

See pricing Book a free demo

Common questions

Questions builders actually ask.

What does DeltaARBIM actually do?

DeltaARBIM overlays your BIM model onto the real structure on site, so you can see where the build matches the plan and where it does not. Some teams call this BIM verification or BIM validation.

What devices do I need?

An iPad Pro, iPhone, or Android device. DeltaARBIM uses the camera and LiDAR where available. No headset, no special hardware. It runs fully offline, with no signal on site and no markers or QR codes to print.

How accurate is it?

DeltaARBIM anchors the model to the real structure and stays accurate to about 2 cm, which is what makes as-built BIM validation against the model reliable.

Is our project data safe?

Yes. You can run DeltaARBIM self-hosted, so your model and project data stay inside your own environment.

See it for yourself

Bring your model. We will show you what does not match.

Email: build@deltaarbim.tech; Demos, pricing, partnerships
WhatsApp / Call: +91 84604 71281; Open WhatsApp →
Global availability: Remote demos worldwide; On-site visits available on request, on any plan. Client covers travel and accommodation.

We reply within 24 hours. Free demo on your own model. No fixed tiers.