Is the home you're buying at risk of flooding? It can be hard to find out

The home-buying season is in full swing in North America — and flood season is still on.

After overflowing rivers ravaged communities in Newfoundland and British Columbia, the Town of Banff, Alta., received its own flood alert on Tuesday. And flash flooding turned the streets of Maryland’s historic Ellicott City into rapids on Sunday.

READ MORE: Maryland flash flooding – Incredible images show historic Ellicott City ravaged by floodwaters

So how can homebuyers reduce the risk that the biggest investment of their lives will at some point end up under water?

You wouldn’t necessarily know it from the headlines. With extreme weather events now happening with alarming frequency, flooding is becoming increasingly common, even for homes that are nowhere close to waterways. And a basement flooded by sewer backup after a torrential downpour wouldn’t make the news.

READ MORE: Flooding, flooding everywhere – do Canadians have insurance for it?

Flooding has overtaken fire as the No. 1 cause of home insurance payouts, with claims for flooded basements averaging $43,000 in major cities. And yet, there isn’t much in Canada that would help homebuyers assess that risk, says Blair Feltmate, head of the Intact Centre on Climate Adaptation at the University of Waterloo.

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floods every spring and are looking at the property in July, it might not be readily apparent that there is a flooding issue. But if the seller is aware of it and it happens on a regular basis, then that’s something they’d have an obligation to disclose,” Abrams said.

And homesellers can’t lie if you ask them direct questions, he added.

“There’s a duty of good faith that exists that you have to provide complete and truthful answers to those questions.”

READ MORE: Here’s how much climate change can cost homeowners in damages

But homeowners don’t have to volunteer information about properties that are located in a known floodplain or an instance of flooding, whether it was from overland water seeping in through doors and windows or old city regurgitating sewage into the basement.

Those, at least, are the common-law principles that apply throughout Canada, Abrams said. Each province has its own regulations on the matter, and private law in Quebec is governed by French-inspired civil law.

What homebuyers can do

Canada is catching up when it comes to flood insurance, with a growing number of insurers now providing both sewer-backup and overland insurance, which are generally treated as additional coverage.

But buying flood insurance is no substitute for doing your due diligence before signing on the dotted line. A growing number of homes throughout Canada are becoming uninsurable due to repeated instances of flooding, Feltmate said. And even a single instance of water seeping through your basement drains could lead to drastically higher insurance premiums or denial of further coverage, as Global News has previously reported.

Your best bet? Asking pointed questions of homesellers and their neighbours.

“Spend time in the community,” Feltmate said. The extra legwork could really pay off in the long term.

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