We used Kevin Smith....and have seen others recommend him when people have asked same question as you. He's on Facebook or google - based in Warminster I think but lives frome way
Clare I. replied:
I believe Rebecca Brooks is an architect, if not Mrs Yoell's ( yr 5 teacher) husband is an architect based in SHEPTON
Becky H. replied:
Depends what you want doing, our company is Curtis Blain Limited and we do drawings, planning building regs, design etc -chartered surveyors