What should i charge for a standard size courtyard.serious residential? ...
Answers: If you are talking in the order of mowing, here in Tennessee we charge something like $45 to $50 per acre depending on how many trees, if at hand are going to be any thing to pick up resembling if they have kids beside a lot of toys etc.
If the patio seems simple and unforced I'd charge about $45 for the average courtyard and as you get more customers, you will swot up more about what it take to keep it up and the subsequent customers will be easier to price.
Get paid as you swot.
It is not even remotely clear what you are asking. Are you selling land, cleaning, landscape, providing entertainment, circus....