Bay window - more muted, painted
timber as per the existing
language of eaves boxing,
conservatories etc.

Dormer window - scaled to sit
'within' roof plane, painted
timber/tiles as per existing roof
detailing.

Extension; lower ground and
ground floor construction 'as one'
eg warm render finish with natural
finish timber and windows
(modular), with finer detail of
handrail and solar shading.