Federsupporter received from the Comune di Roma, on 12 March 2026, the entire dossier deposited so far by S.S. Lazio for the redevelopment of the Stadio Flaminio; the documentation includes urban planning, architectural and systems engineering documents, the draft agreement and the validated Economic and Financial Plan (PEF), which will now be examined to verify the correctness of the administrative procedure.
Synthetic context
What happened: S.S. Lazio submitted the documentation for the redevelopment/expansion of the Stadio Flaminio to the Comune di Roma; the Comune took note and will launch the preliminary services conference to assess urban planning and technical compatibility.
Who is Federsupporter: an association of fans that requested and obtained copies of the documents lodged in order to examine them and submit observations on the administrative procedure.
What exactly the documentation received contains
Category Number of documents What it contains What it is for (in practice)
General documents 31 Studies on urban planning, territory, mobility and environment Demonstrate that the project is compatible with the city (traffic, environmental impact, planning regulations)
Architectural documents 39 Technical drawings of the stadium (plans, sections, layout) Show concretely what the stadium will look like
Technological documents (mechanical systems) 17 Systems designs (climate, energy, ventilation) Ensure functionality, safety and comfort of the structure
Draft agreement – Agreement between Lazio and the Comune Establishes rights and obligations between public and private parties
Validated PEF – Certified economic-financial plan Demonstrates that the project is economically sustainable
Cover letters (6 and 9 Feb 2026) – Official communications submitting documents Formalise the initiation and bureaucratic steps
Why these documents are important
Urban planning and environment: determine whether the project is compatible with the Master Plan and territorial protection regulations.
Architectural documents: show the visual impact, capacity, functions (commercial, services, parking).
Systems and technologies: influence management costs, safety and energy sustainability.
Draft agreement and PEF: are the key documents to understand who pays for what, timelines, financial guarantees and the duration of rights (in the past, surface rights of up to 99 years have been discussed for similar projects).
Next phases and procedural risks
Technical analysis by the Comune and services conference: verification of regulatory compliance and opinions from competent bodies.
Third-party observations: associations (like Federsupporter), citizens and other stakeholders can submit observations that influence timelines and content.
Main risks: challenges on environmental impact, traffic critical issues, inadequacy of the PEF or clauses in the agreement that favour the proposer without adequate guarantees.
Practical recommendations for those following the matter
Read the PEF and the draft agreement to understand sustainability and constraints.
Monitor the services conference and the opinions of bodies (Superintendency, ASL, Mobility).
If you are interested as a citizen or fan, participate in public consultations or submit formal observations within the established deadlines.
Link to the Federsupporter statement: https://federsupporter.it/2026/03/17/comunicato-2/
