I know of this veneer concrete flooring as an alternative to lished concrete, however as a veneer, it is a thin pour over a solid substrate. Unfortunately the very nature of a first floor is suspended, (although sufficiently supported) it will have flex and movement in it, which this opttion does not favor. The reason is due to cracking, and resurfacing the cracks are unsightly. As a designer, and working on my own renovation, I looked into this option and the technical implications for my build. It was not recommended although possible. I did however find one other alternative, called xlite, which are large scale tiles that replicate the look of stone, marble and concrete too. The tiles run in 3000 x 1500 sheets, so Grout lines are limited and hardly factors. In fact that the unique scale of tile, which is lightweight and has a fantastic thermal mass, great insulative quality is so different, makes this system a feature on it's own.

Hi Everyone! This is definitely the same house, I've attached some of the progress pictures to help out with the visualisation. My Architect, the house has multiple kitchens, bathrooms and bedrooms as it incorporates a Granny flat & it is designed for multiple generations to live in as Wuff mentioned. There is 4 generations 5 adults & 2 kids living at the home!

MMMM thanks for the suggestion, it will have to be the option for us, hope there is someone who can do a good job without breaking either themselves or the bank account.

Hi Josie love that area! I used to live and work nearby..... Without knowing the budget or what you intend eg living there / going to make it a family home / investment property, there are quite a few options that depend on answers to the above. sticking with your original question, there are companies around that prefab the entire second storey that is installed in 1-2 days ( the structure install only- doesn't include roof prep etc) This includes the roof, finished walls (exterior and Gyprock internals). Your builder then needs to do the staircase, paint, finishes, bathroom fit off etc but it is very cost effective and is in the $1500m2 range. you obviously need to renovate the existing but $2500m2 is a good guide as others have said.... It really depends on your taste and again, whether it is a home for you or an investment. I understand the detonate thinking, however the existing layout can be worked with. Before detonating, it would be smart to speak to the Council about your setbacks etc of the existing home as quite often the existing home is closer to the boundary than what a new home could be. For a quick and dirty answer to replacement cost for a new double storey home, speaking to a double storey project builder with standard designs will allow you to see what works without a lot of expense as they can advise if their designs will fit. This will give you a budget and allow you to see some designs. you may even see some ideas you like and with which a designer can build on (no pun intended ) cheers