BIM Requirements in Irish Public Works: What Contracting Authorities Must Do

Ireland's BIM mandate requires the use of Building Information Modelling on publicly-funded construction projects above defined value thresholds. The mandate aligns with the EU BIM Task Group recommendation that member states adopt common minimum BIM requirements for publicly-funded infrastructure. For contracting authorities, this means specifying BIM requirements in procurement documents and assessing BIM capability in supplier selection.

The current Irish mandate applies to projects above €100m in value, though the OGP and Government policy signal a progressive extension to lower thresholds as industry capability develops. Contracting authorities should check the current CWMF guidance for the applicable threshold at the time of procurement.

The key procurement document for BIM projects is the Employer Information Requirements (EIR). The EIR specifies what information the contracting authority requires from the design team and contractor throughout the project lifecycle — what models must be produced, to what level of detail, in what format, at what stage, and for what purpose.

EIRs should be developed collaboratively with the design team, BIM management consultants and end-user stakeholders. The required information uses must drive the EIR content — if the authority intends to use the model for facilities management, the asset information requirements must be defined. Generic EIRs copied from templates without adaptation to the specific project are a common failure.

For BIM-mandated projects, the contracting authority should include BIM capability as a selection criterion, requiring tenderers to demonstrate organisational BIM capability, past experience on BIM projects and the planned BIM execution approach. A BIM Execution Plan (BEP) submission as part of the tender response is good practice and increasingly expected.

BIM capability should not be used as an award criterion in a way that advantages market leaders at the expense of smaller but capable firms. The selection criteria should be proportionate to the project's BIM requirements.

At project handover, the contractor must deliver an Asset Information Model (AIM) — a populated model containing the as-built information specified in the EIR. The AIM is the digital equivalent of the traditional operation and maintenance manuals and forms the basis of the authority's building lifecycle management capability.

Contracting authorities should make delivery of a compliant AIM a contractual deliverable tied to practical completion certification. This ensures the contractor prioritises AIM delivery and gives the authority clear contractual recourse if the AIM is deficient.