This will depend on your property, but commonly painted areas include rendered walls, guttering, soffits and fascias, and window frames. Generally you can paint what you want but on older or listed buildings, you may be restricted. An experienced painter will tell you what is possible.
Dunbeath
Dunbeath is a town in south-east Caithness, Scotland on the A9 road. It was the native home of Neil M. Gunn (1891-1973), writer of The Silver Darlings, Highland River etc., most of whose stories are embeded in Dunbeath as well as its Strath. Dunbeath has a very abundant archaeological landscape, the website of various Iron Age brochs as well as a very early middle ages monastic site (see Alex Morrison's archaeological survey, "Dunbeath: A Cultural Landscape".) Of Dunbeath's landscape, Gunn created: "These little straths, like the Strath of Dunbeath, have this intimate beauty. In boyhood we get to know every square yard of it. We incorporate it physically and also our memories hold it. Birches, hazel trees for nutting, swimming pools with trout and also a sometimes visible salmon, river-flats with the wind on the bracken and going away rabbit scuts, a wide range of wild blossom and also little bird life, the rising hawk, the unanticipated roe, the old graveyard, thoughts of the folk who when lived far inland in straths and also hollows, the past as well as the here and now held in a moment of day-dream." ('My Little Bit Of Britain', 1941.). There is an area museum/landscape analysis centre at the old village college.