According to the CQC, the inspection was prompted in part due to a death at the home which raised concerns about safety and the standard of care.
The watchdog said the incident was subject to further investigation and was not examined during the inspection.
Haythorne Place has now been placed in special measures and will be monitored by the CQC to ensure “sufficient improvements are being made”.
Alan Stephenson, CQC deputy director of operations in the north, said: “When we inspected Haythorne Place, it was concerning to see a lack of strong leadership, or a culture that didn’t encourage high-quality care.
“This was affecting people living at the home as there weren’t effective processes in place to enable staff to provide safe, dignified, person-centred care.”
Haythorne Place has apologised to residents and their families and said it had employed a new and experienced home manager since the inspection took place.
A spokesperson said: “The home manager, together with our full leadership team, is working closely with the local authority and our progress is being closely monitored by all.
“We take feedback from the CQC seriously and we will work tirelessly to make all necessary improvements.”
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