Australia has one of the largest and most stunning coastlines in the world. So it figures that along the sandy beaches are a myriad of beach houses, ranging from the most simple to the most extravagant. Here is Lunchbox Architect's selection of Australia's Top 5 Beach Houses:

1. Mornington Beach House

A Beach-Side 'Treehouse' for Big Kids

What if you outgrow the Mornington beach house that's been in the family for years? Architect Clare Cousins designed a 'treehouse' extension for the big kids.

Take a look!

2. Venus Bay Bach

It's a Piece of New Zealand on the Australian Coast, Bro!

Venus Bay Bach is a beach home built on a tight budget, but spacious enough to house family and friends for the weekend. And it doesn't ignore the views…

Show me, bro!

3. Merricks Beach House

Beach-Town Lifestyle with a Modern Twist

Rachel Nolan of Kennedy Nolan Architects designed a weekender for her family called Merricks Beach House. It cleverly redefines the Australian beach house.

Take me there…

4. Cocoon

A Home? Or a Zeppelin That Crash-Landed in the Australian Bush?

You don't get homes much more unusual than Cocoon — a zeppelin-shaped home lofts above its steep site, nestled in the canopy of Australian native treetops.

Cocoon me!

5. Ridge Road Residence

A Beach House Where Nature is the Star

A single tea tree on the site of this beach house became the focus of the project. The aim became to showcase nature, rather than try to dominate and control it.

Check it out!