All development, unless specifically exempted under the Planning and Development Act 2000, as amended, or associated Regulations, requires planning permission. This includes the material change of use of land or buildings.
It should be noted that exemptions from the requirement to obtain planning permission in respect of specific forms of development are provided for when they are considered to be consistent with proper planning and sustainable development. Any development which falls outside the scope of an exemption and the conditions and limitations attached to it is subject to planning permission. This allows for consideration of the impacts of the specific proposal on a case by case basis by local planning authorities. As such, it would not be considered appropriate to provide for a specific planning exemption based exclusively on a period of use.
Whilst planning legislation is kept under review, I have no plans to further amend the provisions in this regard at this point in time.