Your new home looks fabulous! Congratulations from the Team at North! I am a visual person so I hope you don't mind me adding some photos to help explain colours. Your home has more yellow brick then red like these homes. However the dark grey, light grey and white framing works well with the brick creating a modern clean look. Darker grey for roof, light grey timber/cladding on top level and light grey down stairs around the smaller square windows. You could add a window frame, to frame the windows in light grey/white around the yellow windows or just leave them as they are. Painting aluminum is not recommend unless you get the professionals in. If you wanted to use panels instead of timber have a look at James Hardie cladding - 13 11 03 is the contact number - They have a fabulous products that give you cladding with a paint finish that will outlast any timber you put on your home and is low maintenance. Need to check with the local council as to what roof colours are aloud some don't allow to dark because of cooling costs. Its suggested you pick 3 colours to keep it unified. Its a personal preference what colours you like? Below the white and blue grey looks amazing! Please let us know what you choose. A project is always exciting.

HI All - for some reason my lengthy reply a few minutes ago was deleted :-(. I put so much thought into it! So here it goes again. Basically a big thank you to you Houzzers. MB your subfloor ventilation sounds great and Im glad it's fixing the problem so simply. The reason why Im trying for a whirligig solution is that I favour a passive system, however if it doesn't work I'll look into what you suggest Siriuskey - yes to some kind of kit. I've already contacted a guy on Gumtree selling grannykit frames - he says for something to my specifications would be about $4000 for the steel frame alone. Would need to check engineering details - and the liveable sheds you've linked me to seem to have that all checked. Although getting a local Chippie to frame it all up on site - as Twos Co suggests - is probably the most economical option Two's Co - thanks for the feedback and the excellent checklist of processes. I've covered most of the concerns though - I've got the DA based on my own flimsy plans. Because it's relatively small, I was going to work with the builder directly and over-engineer it. I've since engaged an architect to do some handsketches and draft specs, which will be signed off by a structural engineer. It's basically a portal frame independent structure, with a 3 degree pitch skillion roof. The house was rewired and the wires you can see are non-live looms waiting for the extension! The sewer is not connected and that part was never plumbed in. There's good rear lane access, but for the purposes of getting concrete in, I'll most likely get a concrete pump from the front of the house - for $180 per hour they will save time and make the concreting much easier. The existing trench I got dug in because I had an excavator on site installing those lovely large concrete blocks you can see, for the retaining wall (500kg each). But that was 7 weeks ago, and the excavation has got too large, and I worked out for a very similar cost I can make the extension 1m wider, so why not. The existing trench I can fill in with the demolition rubble, compact, and filled with any fill waste. Two's Company, I'm on the fence about removing the existing Bedroom 3. If I thought it wouldn't add to the costs too much, I'd do it. One advantage is that I could then make the whole 9m long extension (Option 2) around 150 - 300mm higher, (ie a step up from the existing house) and thus avoid too much excavation and a potential pond. To answer your question about damp and moisture, the whole house is facing a hill with 7 degree slope, and fixing this has been the main aim of the retaining wall, however the runoff is only likely to increase in coming years. anyway here are a few photos. The site is still so messy because the demolition only happened 2 days ago - Im still tidying up....

We have just found out today that our tiled roof needs replacing. We are considering BlueSteel Corrugated roofing as a replacement. I would be very interested in any feedback/advice. Good Luck!!!

A dark grey, black or woodland grey would be an improvement. Go for it.