We have just delivered an interesting hut to Portesham vineyard, not far from us in South Dorset.  It's an island bothy version (door on the side, which obviously is not a classic shepherd's hut but it suits some people).  We built in a separate 4'6" bedroom area, with the bed in two folding sections on wooden hinges.  When raised up the underside of the bed sections are shelves for wine bottles, so the vineyard owner can stand and serve wine from a counter top, with the option of a 4'6" by 6'6" bed when required!  We added a wood burner, dresser cupboard, shelves, fold down desk and belly box underneath for storage of the solar charging kit, which links into the 240 volt wiring via an inverter.

We also made a 5 metre canvas awning (made from the same top quality strong canvas that was used for the canvas backs of soft top Land Rovers) with turned softwood poles, smart guy ropes and oak toggles for tensioning.  We can now offer side awnings (with sides too if needed)  from 2 metres to 5 metres wide, increasing the useful floor space of a hut.