Just a thought - Have you tested the existing cladding for asbestos prior to removing? Some of my coastal clients also feel the need to 'fill' the corrugations at the ends prior to capping or butting up to end frames: to dissuade small creatures from also moving in to a nice new home. Colorbond Surfmist will look great and horizontal will help to balance your homes height, however, it also gives ridges where dust and dirt sits and so needs to be hosed down more often - probably a good idea as it removes some of the salt as well. Good luck with the reno, the Architects image looks great.

The silver will look quite good with your colour scheme. I would probably change some weatherboard for Scyon Axon just to change it up a bit. Also use Scyon Axent for architraves and wall corners. Don't forget eaves and veranda ceilings, etc. as a really nice looking feature use HardieGroove or maybe even some timber to break up the acres of painted surfaces.

Looking at the outside, why are the windows in the extension different from the other windows? Is it an aesthetic choice or a pragmatic one? Since the windows are different, why not make them a statement? Do something creative with the glass . There are all kinds of coloured and textured glass. Go talk to your local glassworks. Or investigate stained glass options. You can even paint glass with special paints for a stained glass look. You might be able to find a local glass artist who could design you something stunning. Look on it as an opportunity, not a problem to be fixed. And compare prices. You might find an option you can afford that turns the windows into a wonderful feature. However, if you really want a window covering, I would recommend shutters. We have recently put in plantation shutters in our back sun room. We love them. They changed the whole look of the room for the good, provide absolute control of light and privacy, and are much easier to clean than venetians. You can get them in any colour you want if you pick the right company and they are very cost effective in small areas, but be aware that they measure in place for accurate sizing and the actual shutters are custom made in China. Ours took over 3 months to arrive, due to Covid. Then we had to wait for the installer another week or so. But they were definitely worth the wait. They are hinged so you can open them out to easily clean the window glass, and the shutters themselves just wipe clean.

Hi, firstly congratulations on your decision to renovate. How exciting. We are nearing the end of a major renovation and choosing the exterior colours was a real sticking point. Most of the houses around us were built in the 1990's and my renovation had the potential to not quite fit in. I had to use a timber cladding to match the existing cedar but the original had been poorly stained and I was never going to get a cohesive match between old and new. I was left pondering my choices. The solution was to paint both but what colour? In the end, I looked at what of the existing was going to be left unchanged. It turned out to be the Karaka Green window frames - not my favourite colour - but in order to work with it I had to pray I didn't offend the neighbourhood. I didn't want the old dirty brown shade and a thousand testpots later, left me with only one really obvious answer. As you can see from the photo, I chose [quite radically] to paint the entire extention in Half Karaka green. It's still a work in progress and in the coming weeks, the rest of the house will be painted to match. I waited for the neighbours - particularly, the old people from the Rest Home at the end of the street - to tell me off for my choice but have been blown away by their reactions. Every last comment has been a major thumbs up. Even the painter - who was highly skeptical - apologised for his doubt, Don't automatically assume your neighbours are going to hate seeing the changes you are about to bring to the area. Which brings me to your planned renovations. I am assuming that your window frames are also going to remain the white colour in the photo. Rather than get all confused about greys etc. Start with them as the basis for the rest of the house and work out from there. If you do that, then I don't think it will be as difficult as it currently seems for you to pick what the rest of the house will be. Don't be afraid to spend money on purchasing test pots. They are around $4 or $5 each and I believe that I probably spent $200. It was worth every penny to me to get a few small off cuts of cedar painted and sit and look at them alongside the existing windows in order to make an informed decision. Good luck. I look forward to seeing some finished photos. I hope to post my finished renovation photos here soon.