As a ballpark starting figure use around $1800 - 2000 per square metre. This just a ballpark figure to use as as starting point and can easily vary either side. So for $150k for that size dwelling is only around $600 per square metre...... Contact a local designer (the good ones understand budgets and costings) and start from there. Material and product choices will vary the cost to construct greatly so keep that in mind. Building costs are always increasing not going down.

while it is always a dream to have a home that matches your "dreams and desires" sometimes budgets must come first. Do you really want to splash out a lot of money on a look that you may not be able to afford. With mortgages so expensive and eating into our everyday lifestyle costs and jobs no longer guaranteed, I think your priority should be to put as much money into your mortgage while you can and just have a comfortable home where you can afford to be happy, healthy and free.......... don't burden yourself with additional costs just because it is "trending" at the moment. Trends change and so do your wish lists as time goes on. Think Comfort and Affordability.

Thanks Clipsal. I like to avoid putting more into landfill as much as possible especially when you have great "bones" to work with. I believe the brushed chrome electrical cover plate is from you guys. I've recently used your products on another jobs. :) Detail, details - make a HUGE difference.

First up talk to your local Council around their requirements. You may find there are hoops to jump through. Have you had a price from a plumber for the sewer connection? That will be the most expensive part. And for materials - there are generations of outdoor loos made out of corrugated iron - so Colorbond would be a solid choice.