Darragh O'Brien (Dublin Fingal, Fianna Fail) | Oireachtas source

The explanatory memorandum might be helpful. On page 44, it states:

This section sets out the additional procedures for the making of applications for retrospective consent under Chapter 4. Retrospective consent, as defined in section 79, is permission for retention granted in respect of development or part of development already carried out or being carried out in respect of which an EIA [or] AA was or is required. This procedure replaces the substitute consent procedure under the Act of 2000. An application for retrospective consent can be made to regularise unauthorised development. For development for which permission has been granted, an application can be made for the part of the development which has been carried out or for the part of the development which has been carried out and all or any part of the development which has not yet been undertaken. An application for retrospective consent may also include in the application, an application for permission for the development of the land or maritime site, or [the] adjoining lands or maritime sites, [and that would be] the subject of the retrospective consent.

Any Environmental Impact Assessment Report and/or any Natura impact statement shall be submitted in respect of the entire development, including any part of the development that has not yet been undertaken.