We are building a large extension on our house and will be rendering it white but can't decide on a) whether to cladding the top half (agate grey) and if so what colour windows to have. our windows are too big for sash windows and we have been put off Georgian windows from a number of windows companies due to light. our issue is that as the house isn't built, we cant take photos and see what it looks like. we need to choose soon. our options are light grey cladding and white windows, no render and agate windows.. or maybe agate cladding and windows. any advice welcomed