The judgment means social services departments will have to assess applicants' care needs regardless of their immigration status.
Wandsworth LBC leader Edward Lister, whose council was one of two to have their refusal of community care assessments challenged, warned that the ruling would intensify pressure on already stretched social services departments.
'The ruling raises some very serious issues of public policy, not least the extent to which already hard-pressed social services departments are now expected to provide assistance for people who are in the country illegally.'
But the court ruled if the applicant needs care through age, illness or disability he or she will not be barred from receiving services. The individual's immigration status should be left to the Home Office.