Building minor dwellings in Auckland is subject to specific regulations, so it’s important to check the consent requirements before planning your granny flat. The introduction of the Auckland Unitary Plan has simplified the process, allowing you to build a second dwelling on your property without needing to subdivide or apply for additional consents.

However, there are still rules in place to prevent overcrowding and protect the environment, heritage, culture, conservation, and communities.

The regulations for building a granny flat depend on the location of your property within Auckland. The Unitary Plan divides Auckland into zones, which determine land use, such as residential, commercial, or conservation. Most properties in Auckland fall into one of three main zones: Single House Zone, Mixed Housing Suburban Zone, and Mixed Housing Urban Zone.

Single House Zone: A minor dwelling can be built up to 65m².

Mixed Housing Suburban Zone: Up to two dwellings can be built on each section without requiring resource consent.

Mixed Housing Urban Zone:Up to two dwellings can be built on each section without resource consent, and buildings can be taller.

You must ensure that your granny flat complies with the requirements of your specific zone, particularly if you plan to use it for commercial purposes or subdivide your land before building.

In addition to zoning rules, you may also need to obtain building consent for your granny flat. The need for consent depends on factors such as:

– The floor area,

– The height of the building,

– The distance from section boundaries or other dwellings,

– And whether the granny flat will include cooking and toilet facilities.