(1)  For the purposes of section 151 of the Act, a person –

(a) may only erect, alter or add to a building in a B landslip area if the total floor area will exceed 200 square metres when the building work is completed; or

(b) may not erect, alter or add to a building in a B landslip area for the purpose of carrying out heavy industry in the building.

(2)  A permit authority may grant a permit for the erection or alteration of, or addition to, a building in a B landslip area so that the building has a floor area exceeding 200 square metres if –

(a) a certificate is given by a practising professional engineer who has expertise in landslip areas; and

(b) a building surveyor grants a certificate of likely compliance.

(3)  The certificate given by the practising professional engineer under subregulation (2)(a) must confirm that –

(a) the erection, alteration or addition can be carried out safely; and

(b) the building will be structurally sound; and

(c) the completed building will not affect the stability of the land.

(4)  For the purposes of subregulation (2)(b) , a building surveyor may grant a certificate of likely compliance to a person to erect or add to a building in a landslip area if satisfied that –

(a) the pipes installed are adequate to convey any stormwater, sullage, sewage, water storage overflow, sub-soil water and other waste and water from the building work to –

(i) a suitable drainage system; or

(ii) an on-site waste water management system; or

(iii) a natural water course; and

(b) the stability of the landslip area is not compromised.