I doubt machine learning has been very accessible to most home buyers, especially a few years ago. Plus real estate business makes it sound like they do all that kind of work for you, and realistically that should be part of their job. I should be able to ask a realtor for a full site assessment including any environmental sampling that had been done and maps like flood maps.

My one house purchased late 90s in Ontario came with notes and required signoff aknowledgement that it was in a designated flood plain. So flood plain awareness should not be new to people. (The home was on a raised pedistal foundation, so flood damage should have been minimal if it occured, and price was right)

Moving out west with huge topology changes meant I always checked flood plain maps before looking at realestate. Some friends of mine called me paranoid and had a good laugh about my efforts...but I think with all the atmospheric rivers and worldvwide flooding recently, they may now understand my madness.

Yes, but typical Canadians aren't going to use ML to price their bids. At best, for most, it's a qualitative assessment based on realtor input, and their own judgement.