White on White Dulux. :)

With such a large house I think it would need some other darker colour along with white to help "ground" the look. Also, as mentioned above, pure white on an exterior looks very glarey - surfmist would be perfect. I would strongly suggest getting a colour consultant to help with such a large project - and get some mock-ups done with different colour ideas.

You can’t go wrong with white. I always suggest match to the wall colour or the trim colour.

Hi Rachel. Our walls are Dulux Linseed. Shale grey was my husband's choice, not mine, as I didn't think the grey would go with our walls, but because it's such a pale grey, it looks fine. Have you played with Lysaght's visualiser? https://www.lysaght.com/content/visualiser You can change roof, walls, fascia, gutter, windows, posts, fence, etc. I did a quick version (below) using Shale Grey. I'd say that in real life my roof looks paler. Kath