Hi, I like the overall concept of the darkish grey, it suits the home. I am a colour consultant and have been working with the Dulux range for 17 years and you are on the right track with the Guild Grey. The Dulux Signature will give you a dark blue house. Another option if Simone Weil which is just a bit lighter than the Guild Grey, if you find that one too dark. Sample pots and A4 brush outs onto white cardboard are the best way to decide, because computer programs give an overall impression of the "look" but are not accurate with colour choices, you can't beat the human eye. All the best, it's going to look great.

I'm not familiar with these colors but try and keep them similar i.e. A blue grey, a green grey, yellow grey etc. that might help a little bit when thinking about your choice. Also I would do the same colour as you use on the render, (bricks) on the weatherboard above the garage or if you aren't keen on that, make it lighter. I would not go darker up higher. I would however do a very dark fence, assume the concrete one on the left. The other option, as it looks like you are embarking on quite a large project, is to change the existing colours i.e. garage door. I would choose a colour for the garage door which matches with the main house colour. Go with your gut! Good luck.

@dreamer yes I was thinking a simple timber balustrade would look better than a more modern one. we are planing on putting a covered deck off the back with a similar balustrade too. @fianou Luca I love fixed upper. They were the reason we bought this house as I could see the potential. it is much harder than it looks go bring a look all together. I was contemplating painting the brick lighter like a wash but to scared to vomit incase it looks terrible and it is an expensive job to do. I was even thinking of putting shutters on the windows downstairs to give the front some texture

This may be of interest....https://www.houzz.com.au/discussions/4984679/new-house-colour-advice-needed-please . I went through many sample pots for my previous house before getting a colour consultant to help me. However, I have colour consultants from Dulux to be a bit hit and miss and some always just choosing the popular scheme that is seen everywhere. I know one of Dulux' brochures had a house in miller mood...maybe see what they teamed it with. I found the colour pots to be very much the same as the colours shown in the link I gave...Good luck!...... To me tranquil retreat is a very safe bet that will match with everything.. If you want something more unique, than go for miller mood...