Self contained annex/entire place

Professional tenant seeking a fully self‑contained annex or studio with own kitchen, bathroom, and private entrance.
I’m quiet, tidy, and reliable, looking for a long‑term let. I work full‑time, don’t smoke, rarely have visitors, and value privacy and a peaceful environment.
Happy to live on the same property as an owner‑occupier, provided the accommodation is completely independent.
References available. Flexible on location, including outside Bristol. Preferably Thornbury, Dursley, Alveston