Commencement Notices are now managed by the National Building and Market Surveillance Office on behalf of all 31 Local Authorities in  Ireland ( www.nbco.localgov.ie)Commencement Notices Details and Spatial Data A commencement notice is a notification to a Building Control Authority that a person intends to carry out either works or a material change of use to which the Building Regulations apply.''Frequently asked questions for commencement noticesThe commencement notice data is extracted from the APAS Building Control system and holds details taken from the 'Register of commencement notices.''BuildCMaster.csv contains:''Application Reference: BC_Ref'Application Date: App_Date'Application Type: Commencement Notice or 7 Day Notice 'Proposal: Short Description of proposed development'Location'Decision''Building_Control.csv contains:' 'Application Reference: BC_Ref'App Location: Lat'App Location: Long'App Location: Easting (IG)'App Location: Northing (IG)''Building_Control.gml contains:'' Application Location Boundary'Application Reference: BC_RePlease see data on web page nbco.localgov.ie