A children's centre in Hounslow has been told it must improve as it is failing to support enough of the area's poorest families.
Midsummer Park Children's Centre, in Staines Road, Hounslow, was rated "requires improvement" by education watchdog Ofsted - the second lowest of four possible grades.
Inspectors found it was reaching too few families from deprived areas and failing to properly record the progress made by the most vulnerable children.
They said it should offer more activities in the community, making them easier for families to access.
However, they noted it was providing a good service to those who used it, with youngsters making good progress in play sessions and work on nutrition helping reduce childhood obesity in the area from 22% to 15%.
They also praised work by staff to help families find better housing in the area, where all but one of the seven communities the centre serves are in the 30% most deprived nationally.
Midsummer Park Children's Centre opened in 2011. It shares a building with Midsummer Park pre-school but the two facilities are separate.
Children's centres support families with young children, offering services ranging from play sessions to health care and employment advice.