Hi Amanda My renovation work has ranged from $1,500/m2 to $4,000/m2 (and more). What varies is the standard of finish, the amount the existing home is disrupted, and the structural gymnastics being performed. I would concur with the above advice that finding the right design professional and briefing them well will help you deliver a renovation in alignment with your goals for it. What also is important is starting your reno with a great overall strategy. There are a few ideas involved in this, but one that has worked for my projects (both my own and my clients') is to capitalise on the economy of building 'new' when extending. New work is less expensive to build than renovating (on a square meterage rate), so consider whether you can bolt on your extension and not disrupt the existing too significantly. Below is a photo of the type of thing I mean - this was a reno I did of one of our own homes, and we added a living/kitchen/dining pavilion on the rear of an old Queenslander home. This home is another example - the entire extension was built for a similar price to the refurbishing of the existing home - and yet provided significantly greater returns in space and design. "Before" shot from rear "After" shot from rear You may not be seeking something of this aesthetic (and your council may limit your aesthetic too), but the general intent of these extensions is that they 'bolted' onto the existing home. The roof of the new extension is separate to the existing, with a transitional built element that tucks under the existing roofs to bridge between the two. Best wishes with your plans - getting ready upfront will also help you manage your costs. Time = money so when you brief your team well, everyone works efficiently, and construction can flow seamlessly without unnecessary delays, then that also assists in keeping on budget. I wrote a blog about how projects go over budget, and how to minimise this risk on your project. Click here to read >> Regards Amelia Lee, UA www.undercoverarchitect.com amelia@undercoverarchitect.com

Perhaps you could write a Houzz article on this with real life examples of each point?

Hi Everyone. It's been a while and not sure if anyone on here will even see this post but thought I would provide a quick update after almost 2 years. We finally moved in a couple of months ago and will host our first Christmas. We never did find a builder, and I did have some legal issues to sort out, including the previous building breaking in and taking anything but we had someone project manage different stages to the point that it is livable. The house is no where near finished and it has been a difficult journey but we are there. Next year I hope to find a builder to take on Stage 2 so that I can say that after 10 years, it is finally finished. A big thank you to Two's Company who got me started. If it wasn't for your advise and assistance I really don't know what would have happened.

I've read about Modular Homes, I love the concept - I had no idea that they would be so aesthetically pleasing though!