A report into services at a former care home in Immingham makes for "distressing reading" CQC has said.
The Care Quality Commission (CQC) removed Hadleigh House's registration at the end of June.
North East Lincolnshire Clinical Commissioning Group (CCG) said all 23 residents at the home had been moved following its closure.
The BBC has been unable to contact the home's operator Hadleigh Care Ltd.
found the home to be in breach of numerous regulations and said it was failing to protect residents from harm and abuse.
During an inspection in June, inspectors found the property to be "dirty, malodorous and unhygienic".
They described finding wheelchairs and carpets stained with food and other debris, a leaking toilet and a used incontinence pad left on a bedroom floor.
The health watchdog said the home failed to ensure residents were treated with dignity and respect and failed to ensure their right to privacy.
The CCG and North East Lincolnshire Council said they had put in place a dedicated team to work with residents and their families to ensure the most appropriate alternative care was found.
Jake Rollin, assistant director of care and independence at the CCG, said: "The CQC report makes distressing reading.
"It is very clear that standards at the home had quickly plummeted so far below the level of quality we would expect from a care provider.
"There was absolutely no option other than to close it immediately and find new places to live for the 23 residents who deserved safe, effective, compassionate and well-managed care."