The room is inside the host's house. Nonetheless, it was nice, comfortable and silent. The bathroom was very modern, the shower tub was really good, and the tap water was filtered and good to drink. It's 10min walk to Harrow on the Hill station, plus about 30min metro from Harrow on the Hill to the city centre. The host was very polite and helpful. The room wasn't very clean, and we felt like the hallway needs some kind of air freshener. Anyway, we enjoyed our stay.