1 Eldene Court, Toorak, Victoria.
I'll get it out of the way, yes, this place is a bit more beige than I generally like and the floors are a tad shiny but it's still exquisite. And the layout is perfection; I especially love the way the siteplan maximises privacy. It's not really a house for kids but that's no big thing. More info to be found here.
(click pictures to enlarge/launch floorplan)