Tower Bridge Care Home at Bricklayers Arms has achieved a 'good' rating from the Care Quality Commission, a year after it was placed in special measures.
Nearly 100 people live at the care home, including some people with dementia.
The CQC's latest report – after an inspection in June and July – gives the home a 'good' rating in all areas except the responsiveness of the service, which is still deemed to require improvement.
"We are really pleased with the recent CQC report, particularly the number of positive comments included from residents and their loved ones," said a spokesman for HC-One, the firm which owns the home.
"Over the last year we have worked really hard to make improvements and deliver kind care, and this outcome is a testament to the commitment of the entire staff team.
"The health and wellbeing of our residents is at the heart of everything we do, and as we move forward we are 100 per cent focused on continuing to deliver quality kind care."