Room for occasional stay

I am a 48-year-old professional looking for a long-term, quiet base. My lifestyle is highly flexible: I travel extensively and spend between 6 to 9 months a year abroad (mainly in Asia). I need a solid, reliable UK address for residency and a base for the few months I am back in the country.

I have a few personal items, including a bicycle and some boxed DIY tools (drill, saws). I am looking for a large double room that can accommodate my desk setup (3 monitors), and ideally, access to a garage, shed, or cellar where the bike and tools can be safely kept.

As a tenant, I am extremely clean, independent, and quiet. Since I am away most of the year, my wear-and-tear and utility usage will be practically zero.