Mortgage in a flood zone in Quebec: what lenders still finance, the Desjardins rule and how to build a file that passes

Flood zone · Financing

Who still lends, on what conditions, and why the financing condition must hold until the written answer.

Financing a house in a flood zone has become the first condition to check: since 1 February 2024, Desjardins no longer grants a mortgage for a home in a high-current (0-20 year) flood zone, less than 5% of its loans. Other lenders finance case by case, with an appraisal that accounts for the zone and often proof that a flood endorsement is available. The intensity class of the new map (low, moderate, high, very high) weighs in the decision, as does a recognized dike. The financing condition in the promise to purchase must therefore stay in force until the lender's and the insurer's written answers, not just until a general pre-approval.

The rule that changed the market

Since 1 February 2024, Desjardins no longer grants a mortgage for a home in a high-current (0-20 year) flood zone, less than 5% of its loans. Desjardins was one of the last large institutions to do so; other banks sometimes finance, without a clear public policy, case by case. The lender's reasoning is simple: it does not want to lend hundreds of thousands of dollars on a security that can lose its value in a flood.

What the lender looks at

• The zone and its class. High current on an old map, or high and very high class on a new-generation map, close the most doors; the low class and sectors protected by a recognized dike open some. Our page reading the map explains the classes.
• Insurability. Several lenders require proof of home insurance, and for a house in a zone, the availability of the flood endorsement weighs: see insurance in a flood zone.
• The appraisal. The lender's appraiser accounts for the zone and past floods; a house flooded in 2017 or 2019 and restored with proof appraises better than a house with a vague past.
• Adaptation measures. Elevation, rebuilt foundations, backflow valve, pump: documented, they reassure the insurer, hence the lender.

Building a file that passes

1. Get the map and the class for the address, in writing, from the municipality.
2. Get a written insurance quote with the endorsement, or the written refusal.
3. Gather the seller's declaration, restoration invoices and the inspection report.
4. Have the file submitted to several lenders at once by a mortgage broker (in French), because policies differ from one institution to the next.
5. Keep the financing condition until the lender's written commitment, with a realistic delay.

Seller: prepare your buyer's financing

A seller in a flood zone who arrives with the map class, an insurance quote obtained for the address and proof of the work shortens the buyer's financing delay and protects the price. Our page selling a house in a flood zone gives the list.

Frequently asked questions

Can you get a mortgage in a flood zone?

Often yes, outside the high-current zone and the very high class, case by case, with proof of insurability. Desjardins no longer lends in high-current zones since February 2024; other lenders decide file by file.

Does CMHC insure a loan in a flood zone?

Mortgage loan insurance requires a habitable and insurable property; the availability of home insurance, endorsement included, weighs in the file. Ask your lender for the rule before the offer: we publish no rule we have not read.

Can land in a flood zone be financed?

With difficulty: new construction is prohibited there except in the low class under conditions, which strips the land of most of its value for a lender. Check the class first.

Sources read on 15 September 2026: Québec.ca (regulatory framework for water environments in force 1 March 2026, interpretation of new-generation maps, work in flood zones, disaster financial assistance and immunisation), the zonesinondables.mrnf.gouv.qc.ca portal, Insurance Bureau of Canada (spring floods and insurance), OACIQ (transaction on a flooded property), Communauté métropolitaine de Montréal, Radio-Canada (Desjardins, February 2024), La Presse (insurance guide, 5 June 2026). Informational page: your municipality, insurer and lender decide for your address.

Our proof, not our promises

The Loaa & Manseur team, led by Lotfi Manseur and Loaa Al Daow, is the number 1 team at RE/MAX Platine in 2024 and 2025, 6th RE/MAX team in Quebec, 15th in Canada and in the global top 50 of large residential teams according to the official RE/MAX ranking, computed on actual transactions. Its Google profile counts more than 220 reviews with a 4.9 rating. Its offices are at 55 avenue de l'Équinoxe in Brossard, one bridge from the island, and every broker's licence can be checked in the OACIQ public register. Three things to verify yourself before calling us, and to demand of any other broker.

Also available in French: version française de ce guide.

Published September 7, 2026 by the Loaa & Manseur team, the number 1 team at RE/MAX Platine in 2024 and 2025, 6th RE/MAX team in Quebec, 15th in Canada and in the global top 50 according to the official RE/MAX ranking. Tell us about your project.