re: What's the most amount of money you'd put down on a new house? It would be a new build.

The more expensive the house, the more likelihood that the person buying it is paying cash, or is putting down a huge deposit.

Minimum 20% unless you are a first time homebuyer and can get a 10% loan if they still exist. The mortgage insurance for the other 10% financed is a silent killer. One of the biggest mistakes I made when purchasing my first home. If I had waited another 8 months I would have saved thousands in mortgage insurance.