Suppose there's a house that I'd like to buy.
Suppose I have the cash for a deposit and I can presumably get a loan.
I'm living in my house, but I need to sell it and buy this house at the same time without having to rent and put stuff in storage.
How would I go about doing that?
It's called a settlement period. Speak to your broker or solicitor for more information, but your conveyancer can generally make this work if you buy and sell within a reasonable timeframe.