That guy had WAY WAY WAY too much time on his hands! Hope he doesn't plant trees near those pipes. I'd hate to see them fill with roots after that much work. With that tiny flat yard, couldn't he have just done some slight grading and/or filling and solved the problem that way?

Can we all join together and say OVERKILL!!!
I agree with Brandon, waaaaaay too much time on their hands!

That yard's not much bigger than the size of our Canna bed.
I'm sure our patio (23' x 28') is close to being bigger than that.

Too much time... and way too much $$$$.