I confused myself with Walnut Creek.

Yeah, the fines will add up, but this owner definitely looks like they can afford that.
Thanks for the followup. I'll shoot you a PM or email eventually. I need to start compiling a list of builders as well as architects, ETA about 2 - 3 years down the road to start building, and just beginning the thought process before an architect designs what I'm thinking about. Hopefully, by next year I can have enough of an idea to give to an architect to design. Anyhow, these threads help me see the work in more detail, and get more ideas, which is great.
Is there minimum size for you? I'm thinking anywhere from 2K-4K gallons, more if I can fit it, but the land and architecture design will dictate how big I can go.
Funny, I was thinking of a moat.