Legalising a Gas Installation in Commercial Premises in Barcelona

Legalising a gas installation in commercial premises in Barcelona means establishing that it has been properly designed and installed, obtaining the applicable certificates and completing any required registration before requesting activation of the supply. A gas installation certificate—often informally called a gas bulletin—is necessary, but it is not always the only document required. Equally, not every individual gas installation needs an engineering project or registration in Catalonia’s RITSIC industrial safety register.

The correct route depends mainly on useful power, operating pressure, whether the installation is individual or shared, and the scope of any alteration. Ventilation and combustion-product discharge must also be assessed at the outset. Existing pipework or a previous gas contract does not prove that a unit is suitable for a new restaurant, bakery, workshop or other business activity.

When are a gas project and RITSIC registration required?

Under ITC-ICG 07, an engineering project is required in several circumstances. These include an individual receiving installation with useful power above 70 kW, a shared installation or internal service connection above 2,000 kW, and any installation supplied from a network operating above 5 bar. A project may also be required for non-standard techniques or materials and for certain extensions, including where the resulting installation exceeds its original design power by 30% or enters another project category. These thresholds are an initial guide rather than a substitute for technical classification. [3]

Where mandatory, the project must define the installation through descriptions, calculations and drawings and include the instructions needed for operation, maintenance and inspection. It must be prepared by a suitably qualified competent professional, who also issues the works supervision and completion certificate. The physical installation or alteration must be undertaken by an authorised gas installation company. [3] [5]

In Catalonia, individual and shared receiving installations covered by ITC-ICG 07 are registered in the Registre d’Instal·lacions Tècniques de Seguretat Industrial de Catalunya, or RITSIC, only when their characteristics make a project compulsory. A certificate, project and registration are therefore different things. Because administrative criteria and procedures can change, the current position should be checked on Tràmits Gencat or Canal Empresa before filing. [1] [4]

• Individual installation of no more than 70 kW and 5 bar: it may not require a project or RITSIC registration if no other project condition applies.
• Individual installation above 70 kW: project, works supervision and RITSIC registration are required.
• Operating pressure above 5 bar: a project is required regardless of power.
• Extension or equipment change: assess the final power and compare it with the original design before starting work.

Documents needed to certify the installation

For an individual installation, the Catalan procedure provides for a technical project where applicable, a drawing of the receiving installation, an individual gas installation certificate, a works supervision and completion certificate where required, a prior testing certificate and, where relevant, a chimney certificate. Form names, reference codes and electronic filing requirements may be updated, so use the versions available from the official Tràmits Gencat page when the application is made rather than relying on saved copies. [1]

The authorised installation company carries out the work and performs the required tightness test, recording a positive result in the corresponding certificate. For an installation that does not need a project, the installation drawing helps document its route and components. It should not automatically be described as a technical report or treated as equivalent to a full engineering project. [1] [3]

The operator should retain the project or drawing, applicable certificates, responsible declaration, RITSIC registration evidence where relevant and subsequent inspection certificates throughout the installation’s service life. If an older unit has gas pipework but no available file, first ask the owner for the original documents and investigate any registration history. The installation must then be examined in its actual condition rather than certified solely from previous use. [1]

• List each cooker, oven, boiler, water heater and other appliance with its useful power.
• Obtain either the required project or the appropriate installation drawing.
• Keep the installer’s certificate and evidence of the prescribed tests.
• Obtain the works supervision and completion certificate if a project is compulsory.
• Include appliance, flue and chimney documents where applicable.

Steps from feasibility assessment to gas supply activation

Begin by defining the intended appliances and calculating their total useful power. Inspect the premises and establish whether they already have pipework, a meter position, ventilation openings and suitable discharge ducts. Request the previous project or drawing, installer’s certificate, RITSIC details if any, latest inspection report and appliance documents. Do not classify the new installation from an old bill or assume that former use confirms suitability.

Next, determine whether a project is needed and assess construction feasibility. As a general rule, combustion products must be discharged above the roof, although the gas regulations provide exceptions for certain room-sealed or fan-assisted appliances up to 70 kW and some water-heating appliances. RITE requirements may also apply. A façade outlet should never be assumed feasible without checking the appliance, building configuration and relevant technical and municipal requirements. Any associated building work may require a separate Barcelona City Council procedure. [3] [7]

Once the design and any required permits are coordinated, the authorised installer executes the work, tests it and issues the certificate. The competent professional signs the completion documentation where a project was required. If RITSIC registration applies, the responsible declaration is submitted electronically and the generated payment notice must be paid. The supply contract and activation request then go to the distributor, which checks the documents, accessible components, premises, discharge ducts and valves before opening the supply. [1] [3]

• Define appliances and calculate useful power.
• Recover the existing installation file and inspect the premises.
• Classify the installation and prepare a project if required.
• Verify the gas route, ventilation and combustion-product discharge.
• Coordinate the designer, authorised installer and any building works specialists when needed; avoid unrecorded departures from an applicable project or approved technical documents

Cost, timing and common causes of delay

There is no dependable single price without inspecting the premises and defining the equipment. The budget may include a technical survey, project and works supervision, installation or remedial work, certificates, possible involvement of an inspection body, the RITSIC fee where applicable, distributor-related charges and auxiliary work such as ventilation, chimney construction, builders’ work or extraction. The Catalan procedure generates a payment notice, but fees and regulated charges may change; confirm current amounts with the relevant official body or operator. [1]

There is also no universal completion period. Timing depends on the availability and accuracy of existing records, installation complexity, whether a project or building work is needed, flue fabrication, correction of defects, administrative processing and the distributor’s arrangements. Following the correct sequence reduces rework: assess feasibility and classification first, prepare the project where applicable, complete and test the work, register it if required, and finally request supply activation.

Frequent delays include buying appliances before confirming ventilation and discharge, underestimating total power, extending an installation without reassessing the project thresholds, submitting obsolete forms and treating an activity licence as proof that the gas installation is legal. The activity procedure, building works permission, RITE compliance, RITSIC registration and supply activation can interact, but none automatically replaces the others.

• Request an itemised quotation separating professional fees, installation work, auxiliary construction, administrative fees and external charges.
• Confirm which participant will produce each certificate and drawing.
• Do not purchase appliances until power, ventilation and discharge feasibility have been checked.
• Verify current forms, fees and electronic filing requirements through official channels.

Alterations, reopening the supply and periodic inspections

Replacing a cooker, oven or boiler does not always lead to the same procedure. A technical assessment must establish whether power, pressure, pipe routes, ventilation or combustion-product discharge will change and whether an extension moves the installation into a category requiring a project. If an appliance forms part of the building’s thermal installation, RITE may apply as well; complying with RITE does not replace the gas installation requirements. [3] [7]

If the gas supply has been interrupted for more than one year, the regulations require recommissioning to be handled as a new installation for supply activation purposes. The distributor will request and verify the relevant documents. Reviewing the file, inspecting the installation and rectifying defects before applying can therefore prevent avoidable problems during reopening. [3]

Receiving installations supplied from distribution networks are subject to inspection every five years, during the calendar year in which the period expires. Depending on the installation, checks cover tightness, condition, ventilation, combustion and combustion-product discharge. Keep the resulting reports and evidence that anomalies have been corrected. As regulations and operator procedures may be updated, confirm the current inspection arrangements with the distributor and official authorities. [3]

• Record appliance changes and retain manufacturers’ documents and instructions.
• Keep periodic inspection reports and evidence of remedial work.
• Review the complete file before requesting reconnection.
• Check whether alterations also affect RITE, the business activity procedure or municipal building works requirements.

Frequently asked questions

Does every restaurant in Barcelona need a gas project?

No. The requirement depends on the installation rather than the restaurant use alone. An individual receiving installation requires a project if its useful power exceeds 70 kW, it operates above 5 bar or another condition in ITC-ICG 07 applies. All proposed appliances and any extension must be included in the assessment.

Can I activate the gas supply with only an installer’s certificate?

Only where the installation does not require additional documentation and all applicable conditions are met. The installer’s certificate does not replace a mandatory project, works supervision certificate or RITSIC registration. The distributor must also review the documentation and complete its checks before opening the supply.

What should I request before renting premises with gas?

Ask for the project or installation drawing, installer’s certificate, RITSIC evidence where applicable, periodic inspection reports, appliance documents and confirmation of the supply status. Commission a feasibility check covering power, ventilation and combustion-product discharge. Existing pipes or a former gas contract do not guarantee suitability for your proposed business.