SignHealth Longley Road in south London was rated outstanding by the Care Quality Commission (CQC) following an inspection that finished in October last year.
The home, run by the charity SignHealth, supports six deaf adults with mental health needs.
Catriona Eglinton, CQC deputy director of adult social care in south London, said: “When we inspected SignHealth Longley Road, we found a service putting people’s voices, rights, and ambitions at the heart of its work.
“We found a strong and approachable leadership team who supported staff to consistently deliver outstanding, person-centred care in line with the right support, right care, right culture guidance, so everyone felt truly involved and valued.
“We saw staff deliver care that respected each person’s unique communication needs and cultural identity.
“All staff were fluent in British Sign Language (BSL), and almost all were Deaf themselves.
“Staff used BSL and visual aids to share information clearly and support people to express their views and make choices about their care.”
The service was rated outstanding overall, with caring and effective both marked as outstanding, and safe, responsive and well-led rated as good.
Inspectors praised the way staff helped people build life skills, maintain relationships and access their communities.
Ms Eglinton said: “People and their families spoke positively about the quality of care and support provided.
“People had choice in their care and were encouraged to maintain relationships with family, friends, local community and religious groups.
“We were impressed with how staff treated people with kindness and compassion.
“They had developed strong, trusting relationships with the people they supported and their families.”
The CQC highlighted how staff supported one person to enrol at a specialist deaf college and encouraged others to develop skills like cooking and travelling independently.
Inspectors also found that staff trained local health professionals in deaf culture awareness and worked to remove barriers to equality.
The CQC report will be published online in the coming days.
