You need to weigh up costs, engineering, compliance, maintenance & then Resell
most people prefer conventional building techniques & materials.
I've decided to go with ecostruct in Kenwick, Perth. Theres a company called future home living that uses this building material for all there homes. They quoted me around $180,000 from slab to lock up stage which is awesome! Good to find builders that are adapting to first home buyers wanting to do some of the work themselves