Young profesional seeks quiet private space

I am looking for a quiet and private space to rent and rest in when I am not working away. I work in sales and cover the south of the UK, so I am often away a lot.

I need a clean, tidy and spacious space I can live and work from

I am very clean and tidy and value my own personal space and time.

I need somewhere close to the M4 and Wales/England border. Ideally in a very quiet area with a lot of nature.

I have a partner who I do not live with, but spend time with on the weekends