qundus

How we deliver · Digital

Build it twice. Once on a screen.

A clash found in the model costs an hour of a coordinator's time. The same clash found after installation costs a fortnight. That arithmetic is the entire business case for our BIM team.

Read the arithmetic in full

From model to building, in five moves

  1. 01

    Federate

    Every discipline model — ours and every subcontractor's — is federated weekly. Model quality is a subcontract deliverable with payment attached; goodwill alone never fixed a model.

  2. 02

    Detect

    Clash rules are tuned so a hanger brushing a conduit is noise and a fire damper missing its opening is a hold point. Untuned rules produce 40,000-line reports nobody reads.

  3. 03

    Resolve

    Every genuine clash gets an owner and a date. We target 99% resolved in-model; the difference between 95% and 99% is roughly 80 days of site disruption on a mid-size build.

  4. 04

    Construct

    Setting-out points, fabrication drawings and installation sequences come out of the same model the clashes were resolved in — not a redrawn version of it.

  5. 05

    Hand over

    As-built model plus asset data, updated progressively through construction. The client receives a model they can actually operate the building from.

What coordination does not catch

Clash detection catches geometry. It does not catch sequence. A model can be perfectly clash-free and still describe a building you cannot physically construct in the order you planned — because the crane cannot reach, or the room cannot be closed until something inside it is commissioned.

So we run a separate constructability review alongside clash detection, with the site team in the room rather than the design team. It finds a different class of problem, early enough to matter.

Toolchain & standards

Authoring
Revit, Civil 3D
Federation & clash
Navisworks, Revizto
Common data environment
ACC / BIM 360
Reality capture
Terrestrial laser scan, drone photogrammetry
Programme linkage
4D sequencing on projects > SAR 100M
Standard
ISO 19650 information management
99%
Clashes resolved in-model
1,400
Genuine clashes, typical build
4D
Sequencing above SAR 100M
ISO 19650
Information standard