For the applicant of a build permit

A building permit is required for the construction of a building. A building permit is also required for repair and alteration work which is comparable to building construction, and for extending a building or increasing its gross floor area. A building permit is required for repair and alteration work to a building other than that referred to above, if it is obvious that the work may affect the safety or health conditions of those using the building. A building permit is required to substantially alter the intended use of a building or part thereof. Alteration of intended use requiring a permit includes altering a holiday home so that it is fit for permanent residence. (Land Use and Building Act, Section 125)