The grey on the western wall looks dark and purplish on my monitor. It may come over as too imposing and monolithic on the southern face. If you're sticking with the grey palette then a warmer tone would suit the sandstone better. Does Dulux have a colour palette recommendation that includes your Berkshire White plus a grey? Check online or in store pamphlets. But, for such a big, expensive, and impactful paint job I would actually be tempted to get a colour consultant. You're not just repainting a loungeroom wall if it doesn't work!

Could you get surfmist in half? I didn’t think that was possible. I’m currently considering surfmist but wondering how it will turn out. Do you have a pic!

I think you will get more bang for your street appeal Reno buck from refreshing garage door, and awnings, and some landscaping: perhaps even a timber pergola style entry way to add some visual interest. Pressure cleaning roof, paving as well will give it all a lift. You can always change you mind and render later. But I think with these changes, the lovely white windows and charm can shine through more, without the expense and upkeep involved in rendering.

It is 'of a certain era' , and without spending big $$$ , that's always going to be the base , and why not ? I'd take the cue from the lower brickwork , and do the windowsills and gutters in a tone thats more charcoal than brown , but with a slight brown aftertaste . Likewise , I'd redo the upper level in weatherboard , whether its painted , coated , synthetic , but personally I wouldn't mix styles -- scyon or render done in that orange tone will look like an obvious add-on ( yes , I know , the well-worn boards do that too , but look at how the concrete railing has come up with a paint ) . Basically , keep it looking like up-dated period IMO . Basically , get rid of all the green , and the awnings , and work with the orange , the 'interesting' aspect of the brown , the roof , and the small bit of white .