All the suggestions above are perfectly good. However, when you have a house that is entirely painted, the options are so endless that it's easy to get stuck. I'd advise either finding photos of comparable homes in colors that you really love, and reproducing a similar palette on your home… or upload a picture of your house to a colorizing site, and play around with various combos. Sherwin Williams has a Color Visualizer that is decent. I don't mind a white house, but feel that the black trim is a bit harsh. On the railing especially- it feels like it is outlining itself too much. Reduce the contrast between the body and the rail and it will enhance the house rather than overwhelm it. You have a lot of choices, so just experiment and go with what resonates with you.

This just popped up , but I see it is quite old . Did you decide on paint colours ? The roof looks almost a brown tone in the photos , but you say it is dark grey . I assume you don't want to paint that ? If you do , go more charcoal IMO . If you don't , I'm assumimg it will look several shades darker with your wall colour choices . There is a roller door on the garage that appears to be a nice shade of orangey yellow . Personally , I would go with your colour choices , but do all the doors ( roller doors , wooden doors ) and gutterings in that ochre shade . Your terrace I would do in a charcoal , but with the top rail either in the orangey yellow , or a really crisp white . I know that sounds a bit 70's ( although they would have added a lot of ranch brown back then haha ! ) but against the light grey I suspect it would work together well , and look the part .

Personally , I think the main colour is fine , the crisp white on the poles and most of the terrace is fine -- the two different 'sandy khahki' shades ( the window surrounds , and the planter ) looks out of date . I'd do both of them in charcoal , as well as the terrace base board and the upstairs downpipes . It looks like the barge board and the veranda are already a charcoal -- if not , then darken them up too . The mid grey on the steps etc is fine as is , it's hard to see in the photos but the front door looks like it might be a nice solid wooden one -- again , thats fine to me , but I'd do the door surround in a crisp white to make it more noticeable . The other brighter option would be to do the window surrounds , the door surround , the top barge board including the gables , the terrace base and probably the terrace top rail -- all in a bright sunshine yellow !

The roof will be a dark grey/charcoal colour. The gutters are an off white colour, windows are white and we have cream brick all the way around. I am unsure what colour to paint it. I want to keep away from green because my house is surrounded by a sea of green. My husband thinks a light grey along with a new timber front door.