Tesla CAD UK provides clash detection and BIM coordination services for contractors, MEP firms, and multidisciplinary project teams using Autodesk Navisworks and Revit workflows. We identify and resolve architectural, structural, and MEP clashes before construction through coordinated BIM reviews, clash reporting, and ISO 19650-aligned coordination processes.

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Complex 3D federated BIM model cluster showing inter-discipline clashes across structural, architectural, and MEP elements.

Isolated 3D BIM model highlighting a hard clash intersection between an HVAC duct and a structural steel beam.

Model Review, Tolerance Checks & Clash Reporting

How do our Clash Detection Services validate Revit, IFC and Navisworks models before construction?

Our clash detection team works with Revit, IFC, NWC and NWD model inputs and federates them in Autodesk Navisworks Manage for structured coordination reviews. Clash tests are configured by discipline pair, model LOD, project-specific tolerances, clearance zones and access requirements instead of relying on generic test settings. We support ISO 19650-aligned coordination workflows and issue practical deliverables, including BCF files, PDF clash reports, viewpoints, screenshots, element IDs, severity ratings, responsible discipline tags, clash count summaries and re-test confirmations for updated models.

Types of Clashes

What are Hard Clashes, Soft Clashes and Workflow Clashes in BIM Coordination?

Tesla CAD UK identifies and separately reports three distinct types of conflict, each requiring a different resolution approach and each carrying a different risk profile if left undetected until construction.

Physical Intersection

Hard Clash

Two elements physically occupying the same space, which is a direct geometric collision between building components.

HVAC duct passing through a structural beam
Soil pipe running inside a concrete column
Electrical tray intersecting a duct riser

CLEARANCE VIOLATION

Soft Clash

Elements that do not physically intersect but breach the required clearance, insulation, or maintenance zone around a component.

Insufficient maintenance access around AHU
Duct within insulation exclusion zone of steelwork
Cable tray too close to fire damper access panel

SEQUENCE CONFLICT

Workflow Clash

A conflict in construction sequence; an element that cannot be installed in the planned order without creating programme or access problems.

Steel frame erected before MEP penetrations cast
Ceiling void closed before pipe pressure test
Prefab duct module too large for access opening.

How can undetected clashes lead to rework, delays and site coordination costs?

3-5%

of project cost

may be linked to rework and poor coordination.

10-20×

more expensive

when clashes are resolved on site

~40%

of all rework

may involve MEP space constraints

£100k+

per incident

potential impact from a major unresolved clash

BIM clash detection and coordination, done thoroughly and early, is the most cost-effective intervention available at the pre-construction stage.

Discipline-Pair Clash Testing Scope

Which discipline models are checked in our Clash Detection services?

Every clash detection cycle checks coordination between all key building sectors.. This ensures issues are identified early across all systems before construction begins. The matrix below shows the standard test coverage.

Pairs marked with a filled cell are tested on every coordination cycle. Intra-discipline tests within MEP systems are always included.

Matrix Key

✓ Tested in every coordination cycle
● Intra-discipline test (within the same system)
— Not applicable

The Discipline Pair Matrix

VS.	Architecture	Structure	Mechanical	Electrical	Plumbing	Fire Protection
Architecture	—	✓	✓	✓	✓	✓
Structure	✓	—	✓	✓	✓	✓
Mechanical	✓	✓	●	✓	✓	✓
Electrical	✓	✓	✓	●	✓	✓
Plumbing	✓	✓	✓	✓	●	✓
Fire Protection	✓	✓	✓	✓	✓	●

Intra-discipline tests catch conflicts within a single system. These issues are often missed when only checking clashes between different disciplines. By including both checks, we deliver a more accurate and construction-ready coordinated model.

Clash Detection Delivery Process

How does Tesla CAD UK run a complete Clash Detection cycle?

You supply the models; we run every test, issue every report, and re-test until the model is confirmed clean.

Model Receipt
Navisworks Federation
Clash Detection Run
BCF & PDF Report Issue
Resolution & Re-Test
Clean Model Delivery

Model Receipt

We receive your discipline models (Revit files, IFC exports, or NWC/NWD cache files) and run a pre-test check. Any issues are flagged before the clash tests are run.

Navisworks Federation

All discipline models are loaded into a single Navisworks Manage composite file, which will be the federated model. Clash test sets are then configured for every relevant discipline pair, with tolerances set appropriately for each pair rather than on blanket defaults.

Clash Detection Run

Clash tests are executed across all configured discipline pairs, covering hard, soft, and workflow clash types. Detected clashes are reviewed, false positives are filtered, and every genuine conflict is assigned a reference number, a clash type, a severity rating, and a responsible discipline.

BCF & PDF Report Issue

A full clash report is issued in both BCF and PDF formats. The BCF file contains every clash viewpoint, element ID, and classification and can be imported directly into Revit or any BCF-compatible tool. The PDF report includes screenshots at every clash viewpoint, resolution notes, and a clash count summary by type and discipline pair.

Resolution & Re-Test

Teams take action, update their models, and return them to us. We re-run all relevant clash tests on the updated models, confirming each resolution is effective and that no secondary clashes have been introduced by the changes.

Clean Model Delivery

Once the clash log reaches zero open clashes, we issue a clean model confirmation and close the clash detection cycle. The resolved federated model is available for coordinated drawing extraction or handover to the BIM Coordination team for further use.

Project Stakeholders

Who uses our Clash Detection Service?

MEP Contractors

Contractors who need a clean inter-discipline check between their MEP models and the architectural or structural models before installation begins, without necessarily needing a full BIM coordination service.

Contractors & BIM Managers

Construction teams who need a structured clash detection cycle managed centrally across multiple discipline teams, with a consistent report format, clash log tracking, and re-test confirmation at each milestone.

Architects & Structural Engineers

Design consultants who need to confirm their model is clash-free against other team members' inputs, with a formal BCF report as evidence of coordination for the project record.

Buildings Requiring BIM Coordination

Which project sectors do we serve with BIM Clash Detection Services?

01. Residential(Mid-High Rise)

02. Commercial

03. Healthcare

04. Education

05. Hospitality

06. Industrial

07. Heritage & Refurb

08. Mixed-Use

Case Studies

Projects that prove it.

View all case studies

Coordinated LOD 350 BIM model of the UK Battersea Power Station, integrating complex MEP, architectural, and structural building elements.

SCAN TO BIM · HERITAGE

Battersea Power Station - 250+ Residential Units

LOD 350 MEP coordination inside a Grade II* listed building, from a brief with no schematics and a two-week deadline.

61,000 m² · LOD 350 · London, UK Explore Case Study

Photorealistic aerial 3D rendering of the circular London TVC Tower, highlighting the central courtyard, facade design, and rooftop layout.

MEP BIM COORDINATION

TVC Tower - 700,000 sq ft Broadcast Complex, London

Full MEP coordination for an 11-level broadcast and office building, delivered 40% ahead of a schedule that had already been cut by a third.

6,000 hours · 180 working days · London, UK Explore Case Study

Realistic 3D interior render of a London office waiting area, showcasing detailed architectural BIM and SketchUp modelling for Payne Hicks Beach.

INTERIOR VISUALISATION

Payne Hicks Beach - Lincoln’s Inn Office Refurbishment

Six photorealistic renders for a 500 m² office refurbishment, produced from presentation images only, with no source CAD data.

500 m² · 6 renders · London, UK Explore Case Study

Frequently Asked Questions (FAQs)

What do clients ask before starting a Clash Detection Review?

Professional engineering workspace showing technical blueprints and digital project data for client review.

After each clash test run, our team manually reviews detected clashes before issuing the report, filtering out false positives caused by overlapping component families, or test configuration issues. You receive a clean, validated list, not a raw Navisworks output.

Yes. We can manage the full resolution cycle, tracking the clash log, chasing updated models from responsible parties, re-running tests on updated inputs, and confirming resolutions. This is included in our full BIM Coordination service and available as an add-on to standalone clash detection.

Yes, and it should be! Clash detection is most valuable when run iteratively across multiple coordination cycles as discipline models develop. We can manage a multi-cycle programme with agreed milestones for each test run and report issues.

Yes. We run intra-discipline tests within each MEP system, catching conflicts within the same system. These are missed if only inter-discipline tests are run and can create much on-site rework if undetected.

Related BIM Services

Which BIM services support clash detection and coordination?

Tesla CAD UK provides all of the following as dedicated standalone services, giving you a single, consistent delivery partner across your entire BIM and CAD programme.

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