We are currently having a kitchen extension and I have always envisaged it to be painted white or cream outside. The existing house is a darkish red Victorian brick with some interesting brick detail in yellow and bluey/grey. Our architect thinks it would look very contemporary to have the extension rendered a shade of grey, but I'm not sure...the render comes already coloured, so we need to decide before it goes on. The windows/doors/bifolds are slate grey aluminium. WWYD? Thanks.