Your designer should have completed exterior elevations and nominated the exterior materials. Are you looking for assistance with external colour selections, or are you unhappy with your designer's exterior elevation design? Just be aware that not all external materials (such as particular bricks, or stone finishes) can be cost effectively delivered to all parts of Australia. When I am assisting clients I always make sure I know what is available through the local suppliers.

Hi May I ask why you want to use rammed earth? There are other more energy efficient materials around particularly when you want to build two storey. The answer to your question as to who to use will be heavily influenced by what materials you choose. Building in alternative materials usually requires changes in methods regarding eg footing/concrete details, reinforcement (engineering) prelays and finishes. Talking with builders / architects experienced in the method eg rammed earth early will both help you avoid mistakes / late changes to accommodate materials and different requirements.... I would start by talking with builders that have built in the method you like. You will soon find out if it is what you want. A simple web search will locate rammed earth builders who are experienced in double storey homes. I know of one in QLD. Cheers

Amazing to see this brought to life! fantastic project!

Why does this all feel weird to me ? In that photo , it looks like essentially a packing case that someone is adapting to be a garage ? It actually looks to be just sitting there , like its been dropped off the back of a truck ? A decent wind or rain and it looks like it will move a couple of metres haha . If its built on site , or even transported there , the roof normally goes on before the cladding , and I'm trying to recall the last time I saw a newbuild with a timber floor -- I now some 1940's houses had seperate garages and did this , but since the days of concrete , that doesn't seem to have happened . But again , surely logic would say you put the roof on before you lay a timber floor ? The way its sitting there , it looks like higher ground maybe 50-60cm in front of the entrance -- at the very least I'd want a grating and drain in there to collect and deflect any rain and waste runoff , but with that framing under the floor , its likely some rain will get down into the gap anyway . So maybe I'm missing something , but there's a reason why 99.9% of garages are done on concrete floors , not wood .