Looking for a spacious room near the park

I am 43, Ukrainian living in London for over 4 years. I am art curator and interpreter also working in hospitality at the moment. I am very busy having flexible schedule, so really need to relax when I am at home.
I am looking for a spacious room with tidy neighbours who would respect my personal space. I love park walks, so proximity to a nice park is important to me. I am searching for a place within zone 3, any nice area, possibly Wandsworth, Canada Water but also considering other areas. I am ready to move in now but also willing to book in advance if it's a good option.