Small standalone dwellings

Find out more about the building consent exemptions for granny flats and other small dwellings.

The small standalone dwellings (also known as granny flats) building consent exemption commenced on the 15th January 2026.

Under the new exemption owners can build small standalone dwellings without obtaining a building consent. However they still need to interact with Building Assurance at key stages:

  • Apply for a Project Information Memorandum (PIM) for a small standalone dwelling
  • Confirming when work has been completed 
  • Providing Council with documentation, including as-built plans, records of work and completion certificates from suitably qualified trades.
  • Paying any required development contributions

Our role is limited to issuing a Project Information Memorandum (PIM), assessing and confirming any development contributions payable, and retaining records on the property file. We are unable to approve, inspect, or issue Code Compliance Certificates for exempt small standalone dwellings.

The PIM must be obtained before any building work starts.

Please note: This is only one part of the process. Get details of the four areas you need to consider.

What is the process for a non consented small standalone dwelling?

Before you start on your project it is important that you carefully read and understand the requirements of the exemption. The Ministry of Business Innovation and Employment (MBIE) have created the Granny flat exemption guidance document  to assist you in this process.

We would recommend engaging a licensed building practitioner (LBP), Registered Architect or Chartered Professional Engineer (CPEng) early in your planning stages, as they will be required to complete the design of your small standalone dwelling (SSD).

We would strongly encourage discussing your proposal with council  to ensure you are aware of your requirements and other applications that may be required. This could include but not limited to:

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