Italy’s building automation requirements for non-residential buildings

Article 4 of Legislative Decree 192/2005, as amended by Legislative Decree 48/2020, sets the national framework. Its building automation clause covers a defined part of Italy’s non-residential building stock.

The provision is short, but its effect is wider than installing an energy meter or dashboard. It refers directly to the functions in Articles 14(4) and 15(4) of the previous Energy Performance of Buildings Directive. Those functions include monitoring, analysis, adjustment, fault detection and interoperability.

Current threshold and status

Article 4(1)(b)(3-sexies) states that, where technically and economically feasible, non-residential buildings with impianti termici above 290 kW nominal output were to be equipped with building automation and control systems by 1 January 2025.

As of 6 October 2026, the practical national position is therefore:

The date has passed. A covered building should treat the work as a current compliance question rather than a future upgrade option.

The Italian clause uses the broad term impianti termici. Its EU references separately describe heating and combined heating and ventilation systems, and air-conditioning and combined air-conditioning and ventilation systems. The national clause does not itself provide a calculation method for borderline sites with several generators or systems. Record the installed plant, its nominal outputs and the aggregation method used, then have the scope confirmed against the applicable national and local rules by the responsible building professional.

Statutory exceptions and limits

The BACS clause contains one express qualification: installation is required only where it is technically and economically feasible. The national text does not state a simple payback period or a percentage cost test for this clause. A project team should therefore avoid inventing one. Keep the engineering constraints, alternatives, costs, expected savings and conclusion as a dated feasibility record.

Article 3 of Legislative Decree 192/2005 also excludes defined categories from the decree’s general scope. They include:

• protected buildings where the competent authority finds that compliance would substantially alter their historic, artistic or landscape character or appearance;
• industrial and craft buildings whose spaces are heated for the production process or with otherwise unusable process waste energy;
• non-residential rural buildings without climate-control systems;
• buildings declared unusable or collapsing;
• isolated buildings with less than 50 m² of total useful area, subject to the article’s treatment of separable office portions;
• categories such as garages, cellars, multi-storey car parks, stores and seasonal sports shelters whose standard use does not require climate-control systems; and
• buildings used as places of worship and for religious activities.

These are statutory scope provisions, not a general permission to opt out. Heritage buildings also retain specified energy-certificate, operation, maintenance and inspection provisions. The autonomous regions and provinces can have their own implementation measures, so a site assessment should identify the competent local rule before design or sign-off.

What the system must do

The Italian provision points to the BACS functions in the former Directive 2010/31/EU. A qualifying system must be capable of:

1. Continuous energy management. Monitor, record and analyse energy use continuously, and allow it to be adjusted.
2. Performance comparison and loss detection. Benchmark the building’s energy efficiency, detect efficiency losses in technical building systems and inform the person responsible for the facilities or technical building management about improvement opportunities.
3. Communication and interoperability. Communicate with connected technical building systems and other equipment inside the building, across different proprietary technologies, devices and manufacturers.

This is a functional test. A product label, protocol name or BMS screen does not demonstrate that the complete installed system performs these functions. The acceptance record should show which plant is connected, which energy use is measured, how adjustment works, how losses are detected, who receives the information and how mixed systems exchange data.

Monitoring is part of the requirement, but it is not the whole requirement. A read-only meter installation can provide valuable evidence while still lacking adjustment, building-level benchmarking or interoperability with the technical systems that need to act.

How the recast EPBD changes the direction

Directive (EU) 2024/1275 recasts the EPBD. Article 13 keeps the BACS duty for non-residential heating, cooling and combined ventilation systems above 290 kW and requires Member States to extend it to systems above 70 kW by 31 December 2029, where technically and economically feasible.

The recast retains the three core BACS functions and adds monitoring of indoor environmental quality. It also introduces automatic lighting-control requirements for covered non-residential buildings: above 290 kW by 31 December 2027 and above 70 kW by 31 December 2029, where technically and economically feasible. Those lighting controls must be suitably zoned and able to detect occupancy.

The directive required national transposition of Article 13 by 29 May 2026. Official Italian parliamentary material from 28 July 2026 still described national transposition as work under a government delegation and a draft subject to parliamentary review. The current consolidated national Article 4 cited above still states the 290 kW threshold.

This leaves an important boundary. The recast EPBD establishes what Italy must implement, including the 70 kW step. The final Italian measures determine the enforceable national detail. As of 6 October 2026, do not rewrite the current Italian threshold as 70 kW, and do not assume that the existing feasibility wording, evidence method or enforcement process will remain unchanged. Track the Gazzetta Ufficiale and the competent regional or provincial authority for the applicable text.

A practical measurement and integration plan

Start with the building and plant boundary before choosing hardware.

For every point, record the physical boundary, unit, source device, protocol, sample interval, retained history, alarm owner and whether the point is read-only or writable. Keep equipment protection, certified safety functions and local interlocks in the plant controller. A supervisory system should request an approved operating state through the manufacturer’s documented interface.

Commission read-only data first. Check address, data type, scale, sign and unit against the local display, then reconcile a complete operating period against the building or plant meter. Enable a write only after the manufacturer documents the writable object or register, the building owner approves the control boundary and the team has tested communication loss, invalid values, manual override and recovery.

The BMS and SCADA integration guide describes a mixed-system data path. The BACnet object guide, Modbus commissioning guide and equipment measurement-boundary guide cover common commissioning checks.

Where EpiSensor fits

EpiSensor can provide an operational measurement and integration layer around existing building plant. Electricity monitors can separate HVAC and plant feeders. Pulse and M-Bus interfaces can collect gas, water and heat-meter totals. Modbus and analogue interfaces can bring controller states and process measurements into Edge. A Gateway keeps the record on site and can serve collected data onward over Modbus TCP, MQTT or HTTP.

That can close measurement gaps, provide independent energy evidence and connect meters that would otherwise remain isolated. It does not make every installation a compliant BACS. The building project must still establish the statutory scope, document any feasibility exception, deliver all required automation and control functions, respect the plant’s control and safety boundaries, and obtain the required professional confirmation.

For a first survey, use the HVAC energy-monitoring guide to map supplies and schedules, then the System Builder to identify the interfaces needed for each measurement point. Projects that may qualify for support should also read the Conto Termico 3.0 building automation funding guide before fixing scope, cost and evidence records.