@Bonzocat Thanks so much for the questions. And would love to see any ideas you have.
Yes to the early morning / late afternoon/evening sun.
View to the west across terrace / small lawn then surrounding fields.
We imagine probably 3 veluxes at least. Two in line with the doors - good idea.
Nearest door is into the lounge. It will be more of a snug / TV room once the annex is built and an occasional downstairs guest bedroom, so loss of light not so much of a problem.
Furthest door is into the kitchen/dining. The cottage is only one room deep so there is a window on the other side of the kitchen (as, indeed in the lounge). We also have a large pergola on the terrace at the far end of the cottage (facing west) and through much of spring/summer /autumn most meals are outside. A shady / cool kitchen in high summer is a pleasure as is a cosy snug one in winter, so some loss of light feels ok.
We don’t want a glass roof because they are a nightmare to keep clean.