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2. Detached, standalone buildings

This section refers to the construction or demolition of single-storey detached buildings or outbuildings under certain conditions.

More details

The table below shows the exemptions included in this section and the professional you will need to hire if needed.

Description Is an authorised professional legally required? Who can provide professional advice?
2.1 Single-storey detached buildings less than 10 sqm No Licensed Building Practitioner or Chartered Professional Engineer or Registered Architect
2.2 Single-storey detached buildings between 10 and 30sqm in floor area, using lightweight material No Licensed Building Practitioner or Chartered Professional Engineer or Registered Architect
2.3 Single-storey detached buildings up to 30sqm in floor area with prefab or kitset components Yes Chartered Professional Engineer
2.4 Single-storey detached buildings not exceeding 30 sqm in floor area Yes Licensed Building Practitioner and/or Registered Architect
2.5 Unoccupied detached buildings for housing fixed plants or machinery No Licensed Building Practitioner or Chartered Professional Engineer or Registered Architect
2.6 Single-storey pole sheds and hay barns in rural zones – Licensed Building Practitioner Yes Chartered Professional Engineer
2.7 Single-storey pole sheds and hay barns in rural zones – Chartered Professional Engineer Yes Licensed Building Practitioner or Registered Architect
2.8 Repair or replacement of existing outbuilding No Licensed Building Practitioner and/or Registered Architect
2.9 Demolition of detached building No Licensed Building Practitioner or Chartered Professional Engineer or Registered Architect
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This information is published by the Ministry of Business, Innovation and Employment’s Chief Executive. It is a general guide only and, if used, does not relieve any person of the obligation to consider any matter to which the information relates according to the circumstances of the particular case. Expert advice may be required in specific circumstances. Where this information relates to assisting people: