(1)  Buildings constructed on flood plains shall,

    (a)   be designed and constructed in accordance with good engineering practice to withstand anticipated vertical and horizontal hydrostatic pressures acting on the structure, and

    (b)   incorporate floodproofing measures that will preserve the integrity of exits and means of egress during times of flooding.

Article Ontario Regulation 332/12 Building Code,   Information published by oncodes.ca for educational purposes only.

Note : Building in flood plains can be a risky proposition. Flooding can occur suddenly and without warning, leaving homeowners and businesses struggling to recover. In addition, flood waters can carry harmful bacteria and contaminants that can pose a serious health risk. If you live or work in a flood plain, there are some important things to keep in mind. First, always be aware of the potential for flooding and have a plan in place in case it does occur. Second, make sure your property is properly insured against flood damage. And finally, be sure to take steps to protect your property from floodwaters, such as elevating critical equipment and storing important documents in waterproof containers.