Service Charge Disputes in French Commercial Leases: How Courts Resolve Them

Apportionment Methodology: The Floor Area Rule

In a multi-tenant building, service charges must be allocated between tenants on an equitable basis. Article L 145-40-2, alinéa 5 of the Code de commerce provides that where costs are shared, the allocation key must be set out in the lease, sufficiently specific to allow the tenant to understand and verify it. Courts have treated the allocation key as a mandatory element of the charge regime. Where the lease provides for allocation by reference to tantièmes (fractional shares in a copropriété scheme) rather than by usable floor area, and where the tantièmes calculation produces a result disproportionate to the actual space occupied, the tenant can challenge the allocation. The Paris Court of Appeal ordered restitution of excess charges where the landlord had applied tantièmes when the lease specified allocation proportional to surface area: the tenant recovered the difference between what it had paid and what it would have paid under the correct key (CA Paris 30-11-2023 n° 21/11061). The floor area basis is the most defensible methodology for post-reform leases and the one courts are most likely to endorse where the lease is silent or ambiguous. Pre-reform allocation rules were confirmed under the same logic: Cass. 3e Civ. 24-11-2004 n° 03-14.430.

The Vacant Unit Prohibition in Multi-Tenant Buildings

Article R 145-35 of the Code de commerce prohibits passing to occupied tenants the portion of building charges attributable to vacant units. The cost of managing, maintaining, and servicing vacant units falls to the landlord and cannot be redistributed across the occupied tenant base. In practice, this prohibition generates disputes where the landlord applies a building-wide allocation key without adjusting for vacant units, or applies the full building charges to occupied tenants reasoning that the total cost is unchanged regardless of occupancy. Both approaches are wrong. Courts have accepted a partial allocation approach for fixed costs: fixed costs are spread across all theoretical units, with the landlord bearing the vacant units' share. Wrongly passed-through vacant unit costs are also a factor that reduces market rental value at renewal under Article R 145-8 of the Code de commerce.

Wrong Allocation Key Claims: Restitution of Excess Charges

Where a landlord has been applying an incorrect allocation key, the tenant's remedy is restitution of the overpaid amount based on the correct key specified in the lease. The Paris Court of Appeal's 2023 ruling (CA Paris 30-11-2023 n° 21/11061) appointed an expert to recalculate charges over the disputed period using the floor area key specified in the lease, compared the result to the tantièmes-based charges actually invoiced and paid, and ordered the landlord to repay the excess. The exercise required access to the building's full charge records over multiple years — which is why the annual information obligations imposed by Article R 145-37 are practically important: a tenant without the underlying documentation cannot easily prove the overcharge. Tenants should systematically request and retain all annual charge statements issued under Article R 145-37.

The Missing Inventory: Total Charge Recovery Loss

The most drastic judicial outcome in service charge disputes is the finding that no charges at all are recoverable because the lease contains no valid inventory. The Versailles Court of Appeal established this principle explicitly: a post-reform lease that purported to charge back various items without a precise and exhaustive inventory was held to have a charge clause entirely non-written under Article L 145-15, with the result that the landlord could not recover any charge from the tenant for the entire period covered by the defective clause (CA Versailles 7-3-2024 n° 22/05759). This outcome is not inevitable where the inventory is merely imprecise rather than absent. The Rennes Court of Appeal found in 2024 that an inventory scattered across different sections of the lease and an annex could still satisfy the Article L 145-40-2 requirement if the overall picture was clear and complete (CA Rennes 27-11-2024 n° 22/00385). The Bordeaux Court of Appeal required precision but allowed for a degree of organisational imperfection (CA Bordeaux 2-3-2022 n° 18/04413). The Versailles decision represents a real risk for landlords who drafted post-reform leases with inadequate inventories, and an audit of outstanding charge claims is now advisable.

Court-Appointed Experts in Service Charge Disputes

Service charge disputes regularly require technical and financial expertise. Courts routinely appoint independent experts (experts judiciaires) to: verify the accuracy of charge statements against the underlying invoices; recalculate charges under the correct allocation key specified in the lease (Art. L 145-40-2 al. 5); identify items that fall within the Article R 145-35 prohibited list and quantify their value; and assess whether the annual and triennial disclosure obligations under Article R 145-37 have been met. The court-appointed expert's mission is defined by the court, but parties can make submissions on the scope of the mission at the appointment stage. A tenant seeking restitution should ensure the expert's mandate extends to the full historical period of alleged overcharge, not merely the most recent year. Expert fees are initially allocated by the court between the parties, subject to reallocation based on the outcome.

Regularisation and Restitution

Where charges have been paid under a clause subsequently found to be wholly or partially void, the tenant is entitled to restitution of the sums unduly paid. The claim is based on répétition de l'indu — recovery of unjust enrichment. The limitation period is five years from the date the tenant knew or should have known it was overpaying. In practice, this often runs from the date the landlord provided the annual charge statement under Article R 145-37 — at which point the tenant had the information needed to challenge specific items. A tenant who received detailed annual statements but failed to act on them for more than five years may find part of its restitution claim time-barred. Where the overcharge arises from a void clause (as in the missing inventory scenario: CA Versailles 7-3-2024 n° 22/05759), there is an argument that the limitation period only runs from the date the tenant had effective knowledge of the legal invalidity — courts are still developing this line of analysis.

This article is for general information and educational purposes only. It does not constitute legal advice. Always seek qualified legal advice before any charge dispute or restitution claim.