I have one double where l sleep and one single bed for who want to share room with me. This house is also shared it's 3 floor and 7 room and everybody is working in this house it's generally quiet.
I am at zone 2 near brixton where you can travel anywhere in london by train,underground and buses. Bus is 2 mins by walk and underground 7 mins.
I generally work during week however we can have chat together in the evening and l am happy to share my experience in london last 4 years can recommend what you need to do so.