Welcome to BYC. Glad you decided to join our flock. You might get some ideas from our Coops section at https://www.backyardchickens.com/atype/2/Coops. We have a number of members from Bristol, UK, and if you would like to, you can get in touch with them at https://www.backyardchickens.com/newsearch?search=bristol,+uk. Good luck with your hatch. Buff Orpingtons are a wonderful breed; beautiful, friendly and gentle, and good layers of large, brown eggs. My children, and now my granddaughter made lap pets of ours. Please feel free to ask any questions you may have. We are here to help in any way we can. Cheers.