Buying an apartment let under a commercial lease: guide 2026

Buying an apartment let under a commercial lease is a particular investment opportunity that raises many questions for buyers. This situation, in which a residential property is the subject of a commercial lease (bail commercial), calls for a specific legal approach and a thorough knowledge of the applicable rules. Given the complexity of this type of transaction, it is necessary to master the legal and financial issues in order to secure your investment.

Understanding the commercial lease on an apartment

Definition and legal framework

Buying an apartment let under a commercial lease means acquiring a residential property that is let to a business tenant under a commercial lease. This situation may seem surprising, because apartments are generally intended for residential use, but it remains legally possible under certain conditions.

The commercial lease is governed by Articles L.145-1 et seq. of the French Commercial Code. Contrary to popular belief, a commercial lease may relate to residential premises if they are used for the operation of a business (fonds de commerce) or a professional activity. This use must be authorised by the planning and co-ownership (copropriété) rules.

Conditions of validity

For an apartment to be the subject of a commercial lease in 2026, several conditions must be met:

• Authorisation for the change of use must be obtained from the town hall
• The co-ownership rules (règlement de copropriété) must allow professional activities to be carried on
• The activity carried on must correspond to a commercial or craft business
• The premises must comply with the safety standards applicable to establishments open to the public, where necessary

The specific features of buying an apartment as commercial property

Analysis of the existing lease

Before buying an apartment let under a commercial lease, examining the existing lease is a crucial step. This document determines your rights and obligations as the future landlord-owner.

The essential points to check include the term of the lease, which under the French Commercial Code cannot be less than nine years, the rent review arrangements, the costs shared between the tenant and the landlord, and any special clauses on the use of the premises.

Assessment of profitability

Buying an apartment as commercial property has important financial specificities. The rental yield may be higher than that of a standard residential letting, but the specific risks linked to the commercial lease must be taken into account.

The void period if the tenant leaves may be longer, given the specific nature of the property and the narrower market. In addition, adaptation works may be necessary if the tenant changes and the new business is different.

Rights and obligations of the owner

Compliance with the statute governing commercial leases

On becoming the owner of an apartment let under a commercial lease, you are subject to the provisions of the statute governing commercial leases. This implies in particular respecting the tenant's right to renewal and applying the specific rules on notice to terminate. On the opposite situation, that of the investor who buys a unit in a tourist residence without a commercial lease, see our article on this type of acquisition.

The tenant has a right to renewal of the lease, except for serious grounds or a legitimate wish to take back possession. If you refuse renewal, you may be liable for an eviction indemnity (indemnité d'éviction), the amount of which can be considerable. The methods for valuing this indemnity and the scales used in practice are set out in our article on the calculation of the eviction indemnity.

Management of the landlord-tenant relationship

Managing an apartment let under a commercial lease differs significantly from managing a standard residential property. Relations with the tenant are governed by stricter commercial rules, in particular as regards rent review and termination.

Rent reviews follow specific arrangements, generally based on the commercial rent index (indice des loyers commerciaux) or the tertiary activities rent index (indice des loyers des activités tertiaires). These reviews may take place every three years or as provided in the lease. On indexation, the three-yearly review and renegotiation on renewal, see our analysis of rent increases under a commercial lease.

Precautions to take on acquisition

Essential preliminary checks

Buying an apartment let under a commercial lease requires in-depth checks that go beyond those of a standard property acquisition.

It is necessary to ensure that the authorisation for change of use is in order, check compliance with the co-ownership rules, verify compliance with safety and accessibility standards, and examine the financial situation of the existing tenant.

Legal due diligence

Thorough legal due diligence is needed to secure your investment. This work must include analysis of all the documents relating to the lease, verification that there is no pending litigation, and examination of any assignments or sub-lettings that have been authorised.

The assistance of a property law lawyer becomes indispensable to decipher the clauses of the lease and assess the legal risks. This input makes it possible to anticipate potential difficulties and to negotiate the terms of acquisition with full knowledge of the position.

Taxation and financial aspects

Applicable tax regime

Buying an apartment let under a commercial lease in 2026 falls under a specific tax regime. Rental income is taxed in the category of industrial and commercial profits (BIC) and not as property income (revenus fonciers).

This tax classification implies different filing arrangements and may allow depreciation to be applied to the property. However, it also entails liability to VAT in certain cases and changes the conditions for deducting expenses.

Optimising the investment

Tax planning for such an investment requires a structured approach. Deductible expenses include depreciation of the property, management and administration costs, and loan interest where applicable.

Setting up a SCI (French property holding company, société civile immobilière) may offer advantages for managing and transferring the property, in particular by facilitating partial disposals and optimising the applicable taxation.

Specific risks to anticipate

Letting and commercial risk

The main risk lies in the specific nature of the commercial rental market for an apartment. If the tenant leaves, finding a new tenant may prove complex and lengthy.

Economic dependence on the existing tenant is generally greater than in a residential letting. A tenant default may have significant financial consequences, all the more so because the guarantees are often limited.

Regulatory change

Changes in urban planning regulations and administrative authorisations are a significant risk. A change in the conditions for authorising a use may call into question the continuation of the commercial operation.

Amendments to the co-ownership rules or the adoption of new safety standards may also affect the profitability of the investment and require costly adaptation works.

Exit strategies and capital gains

Resale of the property

Reselling an apartment let under a commercial lease has particular features that should be anticipated from the time of acquisition. The value of the property depends closely on the quality of the lease in place and the tenant's solvency.

The presence of a commercial lease may be an asset by guaranteeing regular income, but it may also limit the potential market of buyers. The negotiation of the sale price must take these specific features into account.

Taxation of capital gains

The tax regime for property capital gains applies differently depending on whether the property forms part of private or business assets. In the case of a BIC investment, capital gains may benefit from specific exemptions under certain conditions.

The length of ownership significantly influences the applicable tax regime. A planned exit strategy makes it possible to optimise the taxation of capital gains and to maximise the overall return on the investment.

Advice for securing your investment

Professional support

Buying an apartment let under a commercial lease in 2026 absolutely requires the support of qualified professionals. The involvement of a property law lawyer and a chartered accountant (expert-comptable) is indispensable to secure the transaction.

These professionals will help you analyse the legal and economic viability of the project, negotiate the terms of acquisition and structure the investment in the best possible way.

Technical and legal audit

Before finalising the acquisition, a full technical and legal audit must be carried out. This makes it possible to identify all potential risks and to factor them into the price negotiation.

The audit must cover the property, commercial, tax and regulatory aspects in order to give a comprehensive view of the investment envisaged.

Buying an apartment let under a commercial lease is an attractive but complex investment opportunity that requires thorough legal expertise. The success of this type of transaction rests on a rigorous analysis of all the legal, financial and tax aspects. Given the specific nature of this situation and the many risks to be assessed, support from property law professionals is a sine qua non of the success of your investment project.