Wow, what a stunning façade design and what a great spot to be building. Your decision to consider COLORBOND® Woodland Grey for roofing, gutter and fascia is a great option. It is modern and grey but throws a warm base it blends beautifully into any natural surround. A mid grey render option is COLORBOND® Windspray which will also reflect the beachside setting of your block. White windows would work however COLORBOND® Surfmist is a more subtle way to get a light window colour without the starkness of a pure white. It also works beautifully with the grey tones of the COLORBOND® Windspray. I would also consider COLORBOND® Surfmist for the garage door to match the windows. Lastly I would tie the roofing colour back in by rendering the porch section in COLORBOND® Woodland Grey. Less colours is better for a façade so if we can use a colour for more than on application like windows and garage door, roof and porch render it looks more cohesive. We hope that helps. Good luck with your beautiful home!

I'd play off the colour of the new tiles - check out Dulux Henna Red to use as a core colour then choose a red-white, a charcoal grey and high gloss black for the door and small details You could be super brave and go with a Red roof too :) This is a great site to have a look at the differences between a bunch of different colours and doing it right :) http://www.oldhouseguy.com/exterior-paint-colors/ Good luck!

I considered Dieskau, Stepney and Timeless Grey with our render. The Dieskau throws a slight pink and the Stepney is a little beige. It may be worthwhile getting sample pots and painting a few areas around your home to see what it looks like in various light. Alternatively paint a large piece of cardboard in each colour and move it around the house. We decided on Timeless Grey. I think Surfmist is too light. Good luck! It's a very difficult decision. Took us months :)

Do you have any photos Tiegan? This might help colour consultants with your query.