Compliance was lowest in the north west of England, where 44% of GP practices were not in line with CQC registration requirements. In Yorkshire, 37% of practices were non-compliant, compared with 36% in south-east England and the West Midlands, and 33% in south-west and east England. In the north east of England just 10% of practices were non-compliant.
Practices that registered non-compliant had to submit action plans setting out a timetable for improvement, and GP leaders have hit out at the costs they face to do so.
Earlier this year 1,545 practices declared non-compliance with at least one part of the regulations. The CQC has refused to say what the current figure is.
GP leaders have warned that no new GP practice premises improvements will be funded before April 2014 and a freeze on development may continue beyond that time.
The GPC says it has been told by NHS England that area teams do not currently have funding to progress premises developments that had not already received 'final approval and confirmation of funding' before PCTs were abolished in April 2013.
The figures were obtained under the Freedom of Information Act by the property developer Assura Group.
The CQC said that it will reveal how many practices are still non compliant on 10 December.
A CQC spokesman said: ‘As the CQC has always pointed out the level of non-compliance was always going to be higher during the first few hundred inspections, as these inspections focused on the practices that declared non-compliant at registration or that CQC had concerns about and programmed in for an earlier inspections, therefore this won’t necessarily reflect the level of compliance for all GP practices.’