I agree with the other comments, wait until you white wash, but I would be tempted to paint some colour of the walls if you cannot remove the trim (it might be there to tidy up the joins).

Thanks Anne and I will look at pale grey given the maintenance considerations. I have already paid for a colour consultant who was great but the Reckless grey she suggested for the house render and basalt gutters/fascia and front wall were too grey when we had the render samples put on and while it had a modern look, it was not giving the beach/coastal feel. I will head back into our inspirations paint store this morning to see if I can find the warm grey colours that have the most similar colour make up to Dune, and go from there. Anne you don't happen to know the dulux colour most close in composition to Colorbond Dune so I know where to start? Thanks again and I would love to hear from anyone who has got a dune roof and hear if they tried light coloured gutters and what render colours they have used on their walls.

Thanks Laura. I wish I had one to show you. The after photo is about 2 steps forward from the original shot. Where the computer is in the 'before' shot is now a beautiful entertainment unit.

Think of introducing a contrast to the white - black being very contrasting, white not being a contrast and soft grey being somewhere in between (but possibly not quite enough, in which case you may need to go for darker shades of grey) . The analogy might be framing a picture or piece of art- If the canvas is really white, you wouldn't choose a white frame. Or putting on eye makeup- if you choose to put a colour on your lids and don't include eyeliner or mascara, your eyes will lack definition ! What colour is the roof ? Also ,have you chosen the white of the exterior yet because these two factors can help in your decision process.