More tests are being planned on the body of a toddler after a post-mortem examination failed to pinpoint how she died.
The body of Jasmine Bellfield, two, was discovered at the property in Naylor Court, Dewsbury, on Friday. Her mother Sonia was in police custody on suspicion of murder.
West Yorkshire Police said the results of the post-mortem examination were inconclusive and a further detailed forensic examination would now take place.
Earlier, the force said detectives were not looking for anyone else in connection with the death.
Neighbours said officers broke down the front door of the property following a request by healthcare workers to gain access.
One neighbour said she believed the tragedy stemmed from a dispute with social services.
Janine Barraclough, 36, said social services threatened to take the child away about a month ago and then returned on Friday.
"They said they were going to take her kid away and they came round banging and kicking on the door. She must have flipped. She was a good mum, a brilliant mum. That kid was so well looked after. She would want for nothing."
Ms Barraclough described the girl as "beautiful with mousy brown hair and blue eyes". She added: "She was a happy kid. You would see her playing in the park."
Flowers have been left at the scene by friends and neighbours.