Mandatory Annexes to a French Commercial Lease: Technical Diagnostics and Condition Reports

What the Law Requires — and What It Doesn't

One of the first questions to address before a commercial lease is signed is whether the landlord has assembled all the required technical documents. The answer is rarely straightforward. Some annexes are strictly mandatory under penalty of lease rescission. Others are not required by law but are practically indispensable, because a landlord who withholds information they possess will be held liable for the consequences. A third category — the condition report (état des lieux) — became mandatory for all commercial leases in 2014 and operates on quite different logic from the technical diagnostics.

The Risk Assessment Annex (ERP)

The état des risques et pollutions (ERP) maps the natural, technological, and seismic risks applicable to the property based on its location — flooding, ground movement, industrial hazards, radon exposure, and contaminated soil zones. It must be annexed to the lease whenever the premises fall within a municipality covered by a technological, natural, or seismic prevention plan. The document must be less than six months old at the date of lease signing.

Beyond the ERP itself, the landlord has a separate written obligation to disclose any prior loss event in the building that generated an insurance payment under a natural or technological disaster classification. This disclosure obligation is independent of whether an ERP is required.

Failure on either front allows the tenant to seek lease rescission or a rent reduction under Article L. 125-5, V of the Environmental Code. However, courts do not grant rescission automatically. The Court of Cassation has been clear that the tenant must demonstrate a prejudice of sufficient gravity — the mere absence of the document, or the fact that the document was slightly out of date, does not in itself justify termination (Cass. 3e civ., 10 September 2020, n° 19-13.760; confirmed Cass. 3e civ., 21 September 2023, n° 22-15.850). Landlords who have inadvertently missed the deadline are in a very different position from those who knew of a risk and said nothing.

The Energy Performance Certificate (DPE)

The energy performance certificate (diagnostic de performance énergétique, DPE) must be made available to any prospective tenant before signing, annexed to the lease, and displayed in property listings. A DPE is valid for ten years. It is not required for a limited set of buildings listed in Article R. 134-1 of the Housing and Construction Code, rural leases, or seasonal lettings.

The DPE underwent a fundamental reform on 1 July 2021: it is no longer merely informative but is now binding on the landlord (except as regards recommended works). The calculation method was overhauled by the ministerial order of 8 October 2021 to apply the standardised 3CL method, covering five consumption categories: heating, domestic hot water, air conditioning, lighting, and auxiliary systems. Only a certified independent diagnostician may produce it. An erroneous DPE exposes the diagnostician to direct liability.

The Tertiary Decree: A New Layer of Obligation for Large Buildings

For commercial and office buildings of 1,000 m² or more in existence as at 24 November 2018, the Tertiary Decree imposes binding energy reduction targets: 40% by 2030, 50% by 2040, and 60% by 2050, measured against a reference year no earlier than 2010. The lease must clearly allocate responsibility for meeting the targets between landlord and tenant. Annual consumption data must be uploaded to the OPERAT platform; non-transmission triggers a public naming mechanism, and failure to meet targets after formal notice can result in fines of up to €7,500 for companies.

The Environmental Annex: Compulsory for Large Premises

Any commercial lease covering more than 2,000 m² of office or commercial space must include an environmental annex. The obligation has applied to new and renewed leases since 1 January 2012, and to all existing leases since 14 July 2013.

In practice, the environmental annex is less burdensome than it sounds. It is primarily a structured mutual disclosure: both parties exchange environmental performance data about the building and the premises, then jointly draw up a periodic assessment of how energy and environmental performance is evolving. That assessment feeds into an agreed action programme. The frequency and content of both the assessment and the programme are left to the parties to determine.

Lead Exposure Assessment (CREP): Old Buildings with a Residential Element

The lead exposure risk assessment (constat de risque d'exposition au plomb, CREP) is required only in a specific situation: the building was constructed before 1949 and part of it is used for residential purposes. A purely commercial building with no residential component is not subject to this requirement, whatever its age. The CREP must be less than six years old at the date of signing. Where the assessment certifies the absence of lead-containing materials, or concentrations below the statutory thresholds, it has unlimited validity. Where lead is found above those thresholds, the landlord must carry out remediation before letting, on pain of criminal sanctions.

The Asbestos File (DTA): No Obligation to Annex — But Concealment Is Costly

There is no statutory requirement to annex the asbestos technical file (dossier technique amiante, DTA) to a commercial lease. The DTA must exist for any building whose building permit predates 1 July 1997 — and the landlord who allows asbestos in friable materials to deteriorate without taking action is exposed to regulatory sanctions and civil liability. But annexing the file itself is not compulsory.

What is not compulsory, however, is not consequence-free. The Court of Cassation has held that a landlord who knew of asbestos before signing, understood the health risks it presented, and chose not to tell the tenant, owes that tenant compensation for the disturbance suffered (Cass. 3e civ., 2 July 2003). The tenant can also rely on the defence of non-performance in respect of the delivery obligation where asbestos is present (CA Paris, 20 January 2017).

The Condition Report: How the Burden Shifted in 2014

Before the Pinel Act of 18 June 2014, condition reports in commercial leases were not mandatory — and the absence of one worked against the tenant. Article 1731 of the Civil Code presumes, in the absence of a condition report on entry, that the tenant received the premises in good repair and must return them as such. In practice, many commercial tenants signed leases with no entry report, and then found themselves having to prove, years later, that the deterioration was not their fault.

Article L. 145-40-1 of the Code de commerce reversed this. Since 20 June 2014, a condition report on entry and on exit is mandatory for all commercial leases. The obligation is of mandatory application: any clause purporting to exclude it is unwritten. It is the landlord who must take all necessary steps to have the report drawn up. A landlord who fails to do so loses the benefit of the Article 1731 presumption and must prove that any damage was caused by the tenant rather than being able to assume it.

How the Report Is Drawn Up and Who Pays

The condition report is drawn up contradictorily and amicably by both parties, or by a third party they jointly mandate. It must be attached to the lease or kept by each party. Where they cannot agree, either party may instruct a bailiff (commissaire de justice) to draw it up; costs are shared equally. Instructing a bailiff is advisable wherever there is any risk of disagreement — which in practice means any commercially significant lease on premises that have seen prior occupation.

Assignments and Successive Leases

The condition report obligation is triggered not only at the start and end of a tenancy but also on any assignment of the lease or business. Where a second lease follows a first and only an entry report was drawn up for the second lease, only that report can be used to assess the state of the premises at the end — the entry report from the original tenancy is irrelevant (Cass. 3e civ., 24 September 2020, n° 19-16.981). Landlords participating in a lease assignment should ensure a fresh condition report is drawn up at transfer; failing to do so forfeits the presumption of good repair against the incoming tenant.

Derogatory and Professional Leases

Both derogatory leases and professional leases are subject to the condition report obligation. The one practical difference: for derogatory and professional leases the report must be annexed to the lease document itself, whereas for statutory commercial leases each party may simply retain their own copy. The derogatory lease texts do not expressly reproduce the sanction (loss of the presumption) that applies to commercial leases — an omission that creates some uncertainty, though most practitioners proceed on the assumption that a similar logic applies.

This article is for general information and educational purposes only. It does not constitute legal advice and does not create a lawyer-client relationship. Current as at 30 June 2024. Always seek qualified French legal and technical advice before concluding a commercial lease.