Under planning legislation, development - including change of use - require s planning permission unless it is specifically exempted from this requirement. The relevant legislative provisions are contained in sections 3, 4 and 5 of the Planning and Development Act 2000, as amended, and in Part II and Schedule 2 of the Planning and Development Regulations 2001, as amended.
The interpretation and application of the provisions in relation to exempted development is a matter for individual planning authorities, or for An Bord Pleanála where a declaration issued by a planning authority in relation to whether a particular development is or is not exempted development has been referred to the Board under section 5 of the Act. I have no function in this matter.