Residential Commencement Notices
- Foilsithe: 14 Nollaig 2020
- An t-eolas is déanaí: 24 Márta 2025
- February 2025
- January 2025
- December
- November
- October
- September
- August
- July
- June
- May
- Background and Methodology
February 2025
January 2025
December
November
October
September
August
July
June
May
This data is also available as a PxStat table from the Central Statistics Office.
Prior to March 2014, the department conducted surveys of BCAs to get commencement notice data:
Background and Methodology
A Commencement Notice is a notification to a Building Control Authority (BCA) that a person intends to carry out works or a Material Change of Use under the Building Regulations. The notice must be given between 14 and 28 days before starting the works or change of use. Once validated by the BCA, works must commence on site within the 28-day period.
For large developments, it is practical to submit a Commencement Notice for each phase, recording the number of units per phase. The Local Government Management Agency (LGMA) operates the Building Control Management System (BCMS) for online Commencement Notice submissions. More information on the BCMS can be obtained from the National Building Control and Market Surveillance Office.