3 rooms flat of 4 m² in London

We live in a quiet and very safe neighbourhood, very close to parliament and government agency buildings such as MI5, NCA etc and opposite Lambeth police station. Guest have access to a peaceful, secluded communal courtyard shared by residents of the community. The semi-private courtyard is visible from the living room window and is home to a tall oak tree ,grassy areas and benches. Access requires a key fob provided to residents at request.