I don’t know the exact amount but I do know my next house will cost less than the amount of cash I have to spend on it.
You don't have to have a mortgage. They aren't a fact of life.
Too many people enter retirement still paying on a house. This is crazy. It isn't an investment, it's a place to live. If you happen to make money on it someday, great, but don't rely on where you live to always appreciate in value.