HelonicHelonic

Cross-discipline coordination

A workflow for keeping every discipline aligned through design and construction document development.

What cross-discipline coordination means

A typical commercial project involves a dozen separate disciplines designing in their own software, on their own schedule, with their own assumptions. Coordination is the deliberate process of aligning those disciplines so that what one designs doesn't conflict with what another designs, and so the building can actually be built as documented.

Disciplines that must coordinate

  • Architecture
  • Interior design
  • Structural engineering
  • Mechanical (HVAC)
  • Plumbing
  • Electrical (power, lighting)
  • Fire protection (sprinkler, suppression)
  • Fire alarm
  • Telecom / IT / AV
  • Security and access control
  • Civil / site
  • Landscape
  • Specialty (kitchen, lab, medical equipment, vertical transportation)

The coordination workflow

1. Establish a Common Model

All disciplines work in or share a federated BIM model with agreed-upon level of development (LOD) at each milestone.

2. Set Coordination Milestones

Coordination reviews at SD, DD, 60% CD, 95% CD. Each milestone has explicit deliverables.

3. Run Clash Detection

Automated clash detection at each milestone with categorized clash reports.

4. Coordination Meetings

Weekly during active coordination, with clash review and assignment of responsibility.

5. Resolve and Re-Verify

Each clash assigned an owner and resolution date; re-run clash detection to confirm resolution.

6. Sign Off

Each discipline signs off that their model is coordinated to the federated baseline before issue for construction.

Common coordination gaps

  • Architecture changes ceiling height without notifying MEP
  • Structural drops a beam without notifying MEP about reduced plenum
  • Mechanical sizes ductwork at the inside diameter, missing insulation thickness
  • Electrical panel locations don’t match architectural elevations
  • Plumbing fixtures shown on architectural don’t match plumbing schedule
  • Fire sprinkler heads conflict with HVAC diffuser locations
  • Telecom rooms sized without accounting for active equipment heat loads
  • Specialty equipment connections (power, water, gas, exhaust) don’t match MEP design
Coordination tip

Treat the federated model, not individual discipline files, as the source of truth. Discipline leads should be in the habit of opening the federated model and seeing their work in context, not only their own discipline file.

Deliverables that force coordination

  • Federated BIM model at each milestone
  • Clash detection report with categorized clashes
  • Coordination meeting minutes with action items
  • Discipline sign-off log
  • RFI log showing coordination-related questions
  • 3D coordination drawings for shop drawings in tight areas
  • Above-ceiling coordination drawings in MEP-dense corridors and rooms

Roles in coordination

  • Architect, typically holds the lead coordination role and federation
  • MEP coordinator (designer or trade contractor), coordinates MEP within and across disciplines
  • Structural engineer, provides current framing model and approves penetrations
  • Trade contractors (in design-assist or design-build), provide installation-level coordination
  • Owner / OPR holder, confirms operational priorities when coordination requires compromises
  • CxA, verifies coordination decisions don’t compromise performance intent

Keep exploring

Related references on coordination, clashes, and document quality.

MEP/Structural Clashes

Most common clash categories and how to catch them.

Design QA/QC Best Practices

Reviewer roles and structured checklists for coordinated docs.

Drawing Errors and Claims

How coordination gaps generate change orders and disputes.

Automated Clash Detection

How Helonic surfaces cross-discipline clashes from your drawings.

See coordination issues before the field does

Helonic's AI cross-checks architectural, structural, and MEP drawings to surface coordination gaps, missed callouts, and discipline-to-discipline conflicts before they hit the field.