BIM 2025 requirement: everything you need to know to be compliant with the regulations

TheBIM 2025 requirement is a key step toward the digitization of the construction industry. From 2025, the adoption of Building Information Modeling will be mandatory for all public contracts above 2 million euros. In this article we will look at what the legislation provides, how to comply, and what the benefits are for PAs and industry professionals.

Building Information Modeling, or BIM, is a digital process that integrates detailed information about the design, construction, and operation of buildings and infrastructure. This approach enables the creation of data-rich three-dimensional models that are useful at every stage of a project’s life cycle, improving the transparency of information and the efficiency of design processes.

BIM is at the heart of the digitization of the construction industry. Through information modeling, companies can reduce wasted time and costs, prevent errors, and improve the quality of projects. The main goal of projects implemented with the BIM method is the creation of a digital twin, a digital twin that allows all the professionals involved to monitor the entire life cycle of the work: from the design and construction phase to those of operation and maintenance. Italian legislation promotes its adoption precisely to accelerate the process optimizing resources and improving efficiency.

The introduction of BIM in the Italian construction industry follows a gradual regulatory path, culminating in the Legislative Decree 36/2023 . The decree confirms the date of January 1, 2025 as the final deadline for theBIM requirement, but modifies the economic thresholds and the planned application methods for its implementation.

From 2025, BIM will be mandatory for:

• Works of new construction and work on existing construction with a parametric estimate of value exceeding 2 million euros.
• Interventions on cultural property, where the specific economic threshold is set at 5,538,000 euros, compared to the general threshold of 1 million previously applied without distinction.

Importantly, the 2 million euro threshold refers to the parametric estimate of the project. So, this approach allows a wider range of public interventions to be included, in line with the provisions of Ministerial Decree 312/2021 and the previous Procurement Code.

This change expands the applicability of theBIM requirement, making the digital model a crucial element for medium- and large-scale projects. As a result, contracting stations and awarding bodies will need to equip themselves with the necessary tools and expertise to comply with the regulatory requirements.

The use of the BIM model in public procurement offers numerous advantages for both government and private companies, improving the quality of projects and reducing time and costs.

In fact, the benefits that PAs can gain from the introduction of the bim methodology include:

• Transparency in procurement processes: all stages of design, construction and maintenance of public works are traceable and verifiable.
• Reducing errors and costs in public works: digital modeling makes it possible to simulate the entire life cycle of a work, identifying potential critical issues in advance.

However, even for sector companies, adopting BIM means streamlining internal processes, improving collaboration among teams, and accessing new tenders. Companies that invest in BIM position themselves competitively in an increasingly technology-driven market.

Complying with the BIM 2025 obligation is not simply a matter of adopting new software or methodology-it is a transformation involving processes, skills, and technologies. To ensure regulatory compliance and achieve maximum benefits, a strategic approach must be taken that takes into account the specific needs of each company or administration.

In order to comply with BIM regulations, PAs are required to:

• Equip yourself with trained professionals: at Orbyta we offer specialized training courses to develop the technical skills needed to ensure regulatory compliance and optimal project management.
• Ensure interoperability: sharing BIM models requires platforms that support open standards such as IFC (Industry Foundation Classes) and OpenBIM.
• Use data sharing environments (ACDat): these centralized digital spaces allow documents, models and information to be managed and shared in real time, enhancing communication between stakeholders.

The legislation promotes the use of open standards to ensure compatibility among the various software used by designers, businesses and governments:

• OpenBIM: is an approach that provides transparency and collaboration through the use of open standards, reducing the risk of constraints related to proprietary software.
• IFC (Industry Foundation Classes): is the most widely used open format for sharing BIM models. It supports the description of buildings and infrastructure during all phases of their life cycle.

Adopting these tools is also a strategic issue: ensuring transparency and interoperability enables compliance with regulations and reduces the risk of errors.

For public administrations (PAs), adapting to the BIM 2025 obligation means facing significant changes in procurement management processes. The main challenge is the digitization of the construction sector, which requires up-to-date technological resources and trained personnel.

Integrating digital methodologies requires a rethinking of how we operate, but this effort is necessary to meet regulatory requirements and benefit from the increased efficiency that the BIM model can offer.

In summary, the road to compliance passes through technological investment, ongoing training, and more conscious management of time and resources. With the right approach and by relying on specialized engineering firms, PAs can overcome these difficulties and make the most of the opportunities offered by the BIM model.