Can planning permission be extended in Ireland?

Planning permission in Ireland normally lasts five years from the date it becomes effective, after which it lapses if development has not been completed. Section 42 of the Planning and Development Act 2000 allows an applicant to apply to the local authority for an extension of that duration before the original permission expires, so it is essential to apply in time - once permission has lapsed, an extension is no longer possible and a fresh application is required.

There are two main routes. The first applies where substantial works have already been carried out pursuant to the permission during the original period, and the development will be completed within a reasonable time; here the council can extend the duration to allow completion. The second route applies where no substantial works have commenced, but there were considerations of a commercial, economic or technical nature beyond the control of the applicant that prevented the commencement of development, and the development still complies with the local development plan and any relevant guidelines, and no material change of circumstances (such as a change in policy or designation of the site) makes the development no longer appropriate.

The council assesses the application against these statutory tests and can refuse an extension if the development is no longer consistent with proper planning and sustainable development, for example where the zoning has changed or a flood risk designation has since been introduced for the site. Extensions granted under section 42 are typically for a further period, though not necessarily another full five years.