Real Estate Purchase: Complete Legal and Financial Process

Introduction

The acquisition of real estate in France constitutes one of the most structuring asset transactions for a household or a business. Between negotiating the price, carrying out the obligatory diagnostics, going before the notary and obtaining the real estate loan, the purchasing process requires complex legal, tax and financial skills. Framed by the French Civil Code, the ALUR Law of 2014 and numerous sectoral regulations, the purchase of real estate requires rigorous preparation. This guide details each stage of the acquisition process, whether it is a primary residence, a rental investment or a commercial acquisition, integrating the legal obligations and the financial levers available.

The negotiation phase: legal foundation of the transaction

Real estate negotiation goes beyond the simple discussion of the price. It legally binds the parties upon signing a written purchase offer, which, accepted by the seller, constitutes a promise of sale within the meaning of articles 1583 et seq. of the Civil Code. The buyer must analyze several parameters: price per m² in the area, state of the local market, work to be planned, co-ownership charges and applicable taxation.

The negotiation also concerns the suspensive conditions included in the compromise: obtaining the real estate loan (obligatory according to the Scrivener Law), absence of easements, favorable result of the diagnostics. A professional negotiation also includes the date of transfer of ownership, the distribution of agency fees and any additional guarantees. In the context of a rental investment, the negotiation must take into account the gross and net yield, the ceiling on rents in tense areas imposed by the ALUR Law, and the prospects of capital gains on resale.

Mandatory real estate diagnostics

The Technical Diagnostic File (DDT) is imposed by the Construction and Housing Code. It includes, depending on the case: DPE (Energy Performance Diagnosis), asbestos, lead (CREP) diagnosis, termites, state of natural and technological risks (ERP), gas and electricity diagnosis for installations over 15 years old, Carrez Law measurement in co-ownership, and state of airborne noise pollution.

Since the Climate and Resilience Law of 2021, the DPE even conditions rental: housing classified G has been prohibited for rental since 2025, F will be in 2028. For the buyer, an unfavorable DPE justifies a downward negotiation or the integration of a works budget. The diagnosis engages the responsibility of the seller: any omission or error may result in action for price reduction or cancellation of the sale on the basis of the hidden defect (article 1641 of the Civil Code).

The central role of the notary

The notary is a public officer whose intervention is obligatory for any real estate sale (article 4 of the law of 25 Ventôse year XI). It authenticates the deed, ensures its publication in the land registration service and guarantees the legal security of the transaction. Its missions include verification of the origin of ownership over 30 years, control of easements, the mortgage status of the property, and urban planning compliance.

Notary fees, incorrectly named (they mainly include transfer taxes paid to the State and communities), represent approximately 7-8% of the price in old properties and 2-3% in new properties. Between the compromise and the authentic act, a period of 3 to 4 months allows the suspensive conditions to be lifted. The notary also purges the municipality's urban pre-emption right (DPU), which can, in certain areas, delay the transaction.

Financing by real estate loan

Real estate credit is regulated by the Consumer Code (articles L313-1 et seq.). Borrowers benefit from a mandatory reflection period of 10 days after receipt of the loan offer. The High Financial Stability Council (HCSF) limits the debt rate to 35% of net income and the duration to 25 years (27 years with deferment for new properties).

The buyer must compare the APR (Annual Percentage Rate), including interest, borrower insurance, administrative fees and guarantees (mortgage or deposit). Since the Lemoine Law of 2022, insurance delegation is possible at any time, generating substantial savings. For a rental investment, loan interest is deductible from property income, optimizing the tax profitability of the arrangement.