Property Purchase: Complete Legal and Financial Process

Introduction

The acquisition of a property in France represents one of the most structuring patrimonial operations for a household or business. Between negotiating the price, conducting mandatory inspections, proceeding before the notary and obtaining mortgage financing, the purchase process mobilises complex legal, tax and financial skills. 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 journey, whether it be a primary residence, a rental investment or a commercial acquisition, integrating 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 signature of a written offer to purchase, which, accepted by the seller, constitutes a promise of sale within the meaning of articles 1583 and following of the Civil Code. The buyer must analyse several parameters: price per m² in the sector, state of the local market, works to be undertaken, co-ownership charges and applicable taxation.

Negotiation also covers the suspensive conditions inserted into the compromise: obtaining mortgage financing (mandatory under the Scrivener Law), absence of servitudes, favourable inspection results. Professional negotiation also integrates the date of transfer of ownership, the division of agency fees and any additional guarantees. In the context of a rental investment, negotiation must account for gross and net yield, the capping of rents in tight markets imposed by the ALUR Law, and prospects for capital gains on resale.

Mandatory property inspections

The Technical Diagnosis Report (DDT) is required by the Construction and Housing Code. It includes, as applicable: EPC (Energy Performance Certificate), asbestos inspection, lead (CREP), termites, state of natural and technological risks (ERP), gas and electricity inspection for installations over 15 years old, Carrez law measurement in co-ownership, and state of aerial noise nuisances.

Since the Climate and Resilience Law of 2021, the EPC even conditions rental: properties classified as G have been banned from rental since 2025, F properties will be in 2028. For the buyer, an unfavourable EPC justifies downward negotiation or integration of a works budget. The inspection engages the seller's liability: any omission or error can result in action for price reduction or sale cancellation on the basis 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 registry service and guarantee the legal security of the transaction. Their duties include verifying the origin of ownership over 30 years, checking for servitudes, the property's mortgage status, and urban planning compliance.

Notary fees, incorrectly named (they largely integrate transfer duties refunded to the State and local authorities), represent approximately 7-8% of the price in established properties and 2-3% in new builds. Between the compromise and the authentic deed, a period of 3 to 4 months allows the suspensive conditions to be lifted. The notary also proceeds with the purging of the urban right of first refusal (DPU) of the municipality, which in certain zones may delay the transaction.

Financing through mortgage

Mortgage financing is governed by the Consumer Code (articles L313-1 and following). Borrowers benefit from a mandatory reflection period of 10 days after receiving the loan offer. The High Council for Financial Stability (HCSF) limits the debt-to-income ratio to 35% of net income and duration to 25 years (27 years with deferment for new builds).

The buyer must compare the AAGR (Annual Aggregate Growth Rate), integrating interest, borrower insurance, file fees and guarantees (mortgage or guarantee). Since the Lemoine Law of 2022, insurance delegation is possible at any time, generating substantial savings. For a rental investment, borrowing interest is deductible from rental income, optimising the tax efficiency of the arrangement.