What is the Financial Completion Guarantee?

A statutory guarantee for buyers

The Financial Completion Guarantee (GFA) is a guarantee taken out by the property developer with a bank or insurer on behalf of buyers who have signed a preliminary sales agreement for a property yet to be built (sale before completion, or VEFA) . It ensures that, in the event of the developer’s financial default, the construction will be completed and the properties will be duly handed over to the buyers.

How it works

The GFA is issued by a guarantor (a bank, insurer or mutual guarantee society) which undertakes to finance the completion of the construction in the event of the developer’s default. In return for this commitment, the guarantor receives a fee (a percentage of the construction cost) and generally requires several forms of security from the developer: a mortgage, a first-demand guarantee, a personal guarantee from the director, etc.

A legal requirement, but only for residential properties

Governed by Article L.261-10-1 of the Construction and Housing Code, the GFA is compulsory for any residential property development sold off-plan (VEFA). It remains, however, optional for commercial developments (offices, retail premises), although many developers choose to take one out nonetheless, to reassure their own buyers or lenders.

Updated on: 17/09/2026