Enforcement of the Building Regulations is delegated under the Building Control Act to local building control authorities (i.e. the 31 local authorities) who are independent in the exercise of their statutory powers.
Under section 159 of the Local Government Act 2001, each Chief Executive is responsible for the organisational arrangements necessary for carrying out the functions of the local authority for which he or she is responsible.
In line with the agreed Performance Indicators for Local Government and the Code of Practice for Inspecting and Certifying Buildings and Works, Building Control Authorities are required to carry out a level of inspection equivalent to 12% to 15% of new buildings for which valid commencement notices have been received.
My Department does not collate the information requested. The National Oversight & Audit Commission (NOAC) collects and publishes this data. The Performance Indicators in Local Authorities reports are available at noac.ie/noac-reports/ .