BIM Phase 2 takes effect: immediate impact for construction firms

The mandate is here

October 2025 marks a turning point for Spain’s construction sector. Phase 2 of the BIM (Building Information Modeling) mandate extends the requirement to use BIM models to all public building contracts above EUR 5 million. Phase 1, which took effect in April 2024, covered only civil infrastructure. The scope has now expanded considerably.

For many mid-size construction firms, this is not a distant planning horizon. It is a requirement for their next tender submission.

What Phase 2 specifically requires

The mandate establishes three principal requirements:

Delivery in open IFC format. BIM models must be delivered in IFC (Industry Foundation Classes) format, the ISO 16739 open standard. A proprietary Revit or ArchiCAD file will not suffice. The contracting authority needs to open and validate the model without depending on specific software licenses.

Minimum LOD 300. The required Level of Development is LOD 300 for basic project deliverables and LOD 350-400 for detailed design. This means accurate geometry with assigned materials, extractable quantities, and defined construction systems. A visually appealing model without structured data does not comply.

BIM Execution Plan (BEP). Each project must include a BEP defining roles, responsibilities, modeling protocols, naming conventions, and coordination processes. The BEP is the technical contract for BIM, and the administration will evaluate it as part of the bid.

Additionally, many procurement specifications are beginning to require specific BIM uses: clash detection, quantity extraction (5D), and schedule planning (4D). Not universal yet, but the direction is clear.

Who it applies to

The mandate covers building construction contracts tendered by the Spanish General State Administration and its dependent bodies, above the EUR 5 million threshold. Autonomous communities can adopt lower thresholds or extend the obligation to all contracts — and several already do.

Catalonia has required BIM on public contracts since 2019. Valencia lowered the threshold to EUR 2 million in 2024. Madrid and the Basque Country have their own timelines. This creates a regulatory patchwork that forces nationally operating construction firms to prepare for the most demanding requirement, not the minimum.

Private-sector construction has no legal mandate, but market pressure is growing. Major developers like Neinor, Aedas, and Metrovacesa already require BIM on their projects. Real estate investment funds consider it an indicator of operational maturity.

The real technology gap

The mandate assumes a capability that many construction firms lack. According to the latest BuildingSMART Spain report, only 38% of Spanish construction companies with over 50 employees have operational BIM capability. For firms with fewer than 50 employees, the figure drops to 12%.

Where the gaps are:

Software. Holding Revit licenses does not equal BIM capability. Firms need coordination tools (Navisworks, Solibri, BIMcollab), a Common Data Environment (CDE) like Trimble Connect, Autodesk Construction Cloud, or even open-source solutions like Speckle, and training to use them effectively.

Processes. BIM is not software; it is a methodology. It requires a BIM Manager (or at minimum a BIM coordinator per project), defined work protocols, and a cross-discipline collaboration culture that most construction firms do not practice. Architecture, structural, and MEP teams work in silos. BIM demands they share a model.

Talent. BIM Managers with construction experience (not just modeling skills) are scarce. The Spanish market has an estimated deficit of 3,000-4,000 qualified BIM professionals. Hiring talent is difficult. Training it takes time.

What to do now

For construction firms that need to close the gap before their next tender:

Weeks 1-2: Honest assessment. Evaluate current capability candidly. What software do you have? Who knows how to use it? Have you ever delivered an IFC model to a public administration? If the answer to that last question is no, the starting point is basic.

Month 1: Minimum infrastructure. An operational CDE. Coordination software licenses. BEP templates adapted to common procurement specifications. You do not need the best tool; you need a tool that works.

Months 2-3: Practical training. Hands-on training, not theoretical. The goal is not to make everyone a BIM Manager, but to ensure site managers and project leads can work with a model, extract information, and identify problems. A 40-hour theory course changes nothing. A real pilot project does.

Month 3+: Pilot project. Apply BIM to a real project (internal or low-complexity) to validate processes, identify friction points, and build confidence before an official tender.

Construction firms that treat BIM purely as an administrative box to tick are missing the point. Those that adopt it as a project management tool — with early conflict detection, automated quantity takeoffs, and real-time coordination — gain measurable operational efficiency. A McKinsey study places the average savings at 15-20% fewer cost overruns on projects with mature BIM implementation compared to traditional methods.

The mandate is the deadline. The competitive advantage comes from what you do with the tool after meeting the minimum. For a broader view of the Spanish construction sector and BIM, we have published a full analysis of the construction industry.