Property developers: insolvencies, completion guarantees and what they mean for off-plan buyers
Property developer insolvencies are surging: 276 proceedings in Q2 2026, up 87.8% year on year according to Altares. What the completion guarantee (GFA) covers, what it does not, and the checks to make before signing off-plan.
Gaston michelin
Agent immobilier
For a buyer off-plan (VEFA, sale of a property in its future state of completion), the question becomes very concrete: what happens to my home if the developer goes under? This article explains what the completion guarantee (GFA) covers, what it does not, and the checks to make before signing.
The numbers: a developer sector under heavy strain
In Q2 2026, Altares recorded 276 insolvency proceedings in property development, up 87.8% year on year. Single-project legal vehicles (companies set up for one programme) rose 180%; more than half are construction-sale companies owned by HPL Groupe. In Q1, 214 proceedings had been opened, up 51%.
The rest of construction is doing better: construction as a whole fell 0.8% (4,148 failures) and structural work 12.4%. The problem is concentrated in development, not in building sites generally.
The new-build market explains this fragility. According to the French property developers' federation (FPI), reservations fell to 19,050 homes in Q1 2026 (−14.3% year on year), a low since the observatory was created in 2009. Only 11,649 homes were put on sale (−19.2%), and available stock reached 83,228 homes, nearly twenty months of sales. Individual investors, however, are back (+22.8% reservations), partly thanks to the new private landlord status.
Sources: Altares, Q2 2026, Batiweb, Q2 2026, France Épargne, Q1 2026.
VEFA and GFA: what the guarantee really protects
With a VEFA, the buyer pays in stages for a home that does not exist yet. Stage payments are capped: 35% at the end of foundations, 70% when the building is watertight, 95% at completion, and the remaining 5% on delivery. The law therefore requires the developer to provide a guarantee, taken out before the deed is signed.
It takes one of two forms:
The completion guarantee (GFA). A third party, a bank or insurer, undertakes to finance the end of the works if the developer can no longer do so. Since 1 January 2015, only this so-called "extrinsic" guarantee remains.
The refund guarantee. If the sale is cancelled for failure to complete, the guarantor refunds the sums paid by the buyer.
The guarantee certificate must be attached to the notarised deed, failing which the sale is void. Its cost, generally 0.25% to 0.80% of the operation amount, is passed on in the sale price.
Three limits are worth knowing. The guarantor does not replace the developer: it finances completion, it does not take over the project. The guarantee does not cover defects: those fall under the guarantees that follow delivery (one-year perfect completion, two-year functioning, ten-year structural). And it does not penalise delay: a home that can be delivered but is late is not "unfinished" in the legal sense.
Sources: France Épargne, Plan Immobilier, VEFA payment schedule, Notaires, VEFA guarantees, Me Paumier, lawyer.
If the developer goes bankrupt: what happens
What happens to the buyer depends on how far the works have progressed and on the guarantee taken out.
The site stops. The opening of insolvency proceedings freezes payments and often the works.
The guarantor is called upon. With a GFA, it finances completion. Since the ELAN law of 2018 (article 75), it can ask the court to appoint an ad hoc administrator to complete the building.
Stage payments continue, but go to the guarantor. The balance the buyer still has to pay goes to the guarantor, according to how far the works have progressed.
With a refund guarantee, the sale is cancelled and the buyer recovers the sums paid.
The guarantee ends at completion. A building is deemed complete when the structures and essential fittings are installed (article R. 261-1 of the CCH); what follows falls under construction guarantees.
In practice, the GFA ensures the home will be finished, not that it will be on time or without problems. The sources consulted do not specify guarantee ceilings or guarantors' response times. One point of attention in the sector: insurers are limiting their capacity and premiums are rising, which could weigh on the cost of guarantees in future.
Sources: Written question no. 17079, government reply (Official Journal, 9 July 2019), Me Paumier, lawyer, France Épargne.
How to protect yourself before signing
Before reserving or signing with a developer, five checks take little time:
Ask for the guarantee certificate (GFA or refund) and check it will be attached to the notarised deed. Without it, the sale is void.
Identify the guarantor: bank or insurer, and its financial strength.
Look at the selling company. Each programme is often held by a dedicated company: find out about the group that controls it, its delivery record and any proceedings.
Respect the payment schedule: pay nothing beyond the legal caps (35%, 70%, 95%) and check that each call matches the stage actually reached.
Keep the final 5%: on delivery, the balance can be held in escrow until snags are resolved.
For an investor, two more points: build slack into the timetable, because the GFA does not protect against delay (lost rent, interim interest that keeps running), and have the reservation contract reviewed by the notary before signing.
Sources: Plan Immobilier, VEFA payment schedule, Me Paumier, lawyer, France Épargne.
Key takeaways
Developer insolvencies nearly doubled in a year in Q2 2026 (276 proceedings, +87.8%), while the rest of construction is stabilising.
The GFA guarantees the building will be completed, not that it will be delivered on time or without defects.
The guarantee certificate must be attached to the deed; check it, along with the selling company and the group behind it.
Respect the legal payment schedule and keep the last balance until snags are resolved.
Points of uncertainty. Insolvency figures are Altares' for Q2; Q3 has not yet been published. Guarantee ceilings and guarantors' response times are not specified in the sources consulted. This article is general information and not legal advice: for a specific purchase, speak to your notary.
