My place is in CENTRAL LONDON ZONE 1-
Close to High Street Kensington Station or even closer to Earls Court Station. I would say its about 5-7 mins walking distance. District and Piccadilly lines are there so you can be in central London in minutes.
It has a studio flat and has a king size bed and a sofa bed. I had guests who used for 2 little children or for 2 adult and was comfortable to them.
Please note that it is a basement flat with skylight with ventilation/fire exit.