Property Purchase: Complete Legal and Financial Process

Introduction

Acquiring a property in France is one of the most structuring financial operations for a household or business. Between negotiating the price, carrying out mandatory inspections, appearing before the notary and obtaining mortgage financing, the purchase process mobilises complex legal, tax and financial expertise. Governed by the French Civil Code, the ALUR Law of 2014 and numerous sectorial regulations, property purchase requires rigorous preparation. This guide details each stage of the acquisition process, whether for a primary residence, a rental investment or a commercial acquisition, incorporating legal obligations and available financial levers.

The negotiation phase: legal foundation of the transaction

Property negotiation goes beyond simple price discussion. It legally engages the parties from the moment a written purchase offer is signed, which, once accepted by the seller, constitutes a promise of sale under articles 1583 et seq. of the Civil Code. The buyer must analyse several parameters: price per m² in the area, state of the local market, planned works, co-ownership charges and applicable taxation.

Negotiation also covers the suspensive conditions included in the compromis: obtaining mortgage financing (mandatory under the Scrivener Law), absence of easements, favourable inspection results. Professional negotiation also incorporates the date of property transfer, the allocation of estate agent fees and any additional warranties. In the context of a rental investment, negotiation must take into account gross and net yield, rent capping in high-demand areas imposed by the ALUR Law, and prospects for capital gains on resale.

Mandatory property inspections

The Technical Diagnosis Report (DDT) is required by the Building and Housing Code. It comprises, as applicable: DPE (Energy Performance Certificate), asbestos diagnosis, lead (CREP), termites, natural and technological hazard report (ERP), gas and electricity diagnosis for installations over 15 years old, Carrez law measurement in co-ownership, and assessment of aircraft noise nuisance.

Since the Climate and Resilience Law of 2021, the DPE even conditions rental: properties classified as G have been prohibited from rental since 2025, F-rated properties will be in 2028. For the buyer, an unfavourable DPE justifies price negotiation downwards or integration of a works budget. The diagnosis engages the seller's responsibility: any omission or error can lead to an action for price reduction or cancellation of the sale on the grounds of hidden defect (article 1641 of the Civil Code).

The central role of the notary

The notary is a public officer whose intervention is mandatory for any property sale (article 4 of the law of 25 Ventôse year XI). They authenticate the deed, ensure its publication at the land register and guarantee the legal security of the transaction. Their duties include verifying ownership records over the past 30 years, checking easements, examining the property's mortgage status and verifying planning compliance.

Notary fees, misleadingly named (they largely comprise transfer duties paid to the State and local authorities), represent approximately 7-8% of the price for existing properties and 2-3% for new build. Between the compromis and the authentic deed, a period of 3 to 4 months allows for satisfaction of suspensive conditions. The notary also handles the extinguishment of the municipality's right of pre-emption (DPU), which, in certain areas, may delay the transaction.

Financing through mortgage

Mortgage financing is governed by the Consumer Code (articles L313-1 et seq.). Borrowers benefit from a mandatory reflection period of 10 days following receipt of the loan offer. The High Council for Financial Stability (HCSF) limits debt-to-income ratio to 35% of net income and the term to 25 years (27 years with initial repayment-free period for new build).

The buyer must compare the APRC (Annual Percentage Rate of Charge), incorporating interest, borrower's insurance, arrangement fees and guarantees (mortgage or surety). Since the Lemoine Law of 2022, insurance delegation is possible at any time, generating substantial savings. For a rental investment, borrowing costs are deductible from rental income, optimising the tax efficiency of the arrangement.