Who can build house like this?

Gone thru alot of builder website, design pretty standard... who can build something like this ?

Where?
Any of the boutique builders in any of the states will be able to build a custom house.

I am in Melbourne SE

Where is this model house?
If you can, knock on the door and ask them nicely about who built it etc. you’d be surprised who will help when your being friendly and complementary about their home. After all, you’d like the same thing right!
Lots, and I mean lots of project home / volume builders can quote a facade similar to this, as well as show you interior design / layout, that a facade alone simply cannot tell you.
Go to some display homes before you talk to any builder. Get together your ideal solution of interior and exterior before you speak to any builder as they can only tell you what it costs to build.