Information about planning requirements for building an additional small residential unit on your residential zoned property.
A minor residential unit is a small self-contained, detached building on a property that already contains an existing residential house. These units are intended to contribute to a range of housing choices without affecting the character of the area.
There are no restrictions on who can live in a minor residential unit, i.e. it does not have to be a relative or dependent person.
Minor residential units are permitted in the residential zones below if they meet the following requirements:
|Zone||Minimum size of existing site (outside Character Area overlays)||Outdoor living space requirement|
Residential Suburban Density Transition
Residential Banks Peninsula
90m2 total area with a minimum dimension of 5m
This can either be a single continuous area or divided into two separate spaces, as long as the main residential unit and the minor unit each have an area of at least 30m2 which is directly accessible from the unit
|Residential New Neighbourhood||450m2||As above, except that the minimum dimension is 6m|
|Residential Hills||650m2||Not required|
|Residential Large Lot||1,500 - 5,000m2 depending on the location of the site||Not required|
|Residential Small Settlement||1,000m2||Not required|
If the above criteria can’t be met a resource consent will be needed.
Minor residential units on sites within a Character Area overlay will generally require resource consent due to the minimum net site requirements for residential units in Character Areas. In addition, consent will be required if the minor residential unit is:
There is no specific provision in the District Plan for subdividing minor residential units from the primary residential unit. This means that resource consent would be required to do this, usually as a non-complying activity due to the inability to meet the minimum net site area requirements for standalone residential units.
Family flats are different from minor residential units as they must only be occupied by family member/s who are dependent in some way on the household living within the main residential unit. A legal instrument must be registered on the certificate of title for the property, to ensure that the use of the flat is restricted in this way.
Family flats can be attached or detached and are considered to be part of the residential unit on the site. They must comply with all the District Plan rules for residential units in the zone in which they are located. If the family flat is no longer required by the dependent relative, it must either be removed from the site, have its kitchen removed or comply with the requirements for a minor residential unit if it is located in a zone where minor residential units are permitted.
In the Residential Suburban, Residential Suburban Density Transition and Residential Hills zones, a family flat that was existing on 6 December 2013 can be converted into a residential unit able to be occupied by anyone if certain criteria are met.
A minor residential unit is considered to be a development under the Council's Development Contribution Policy and is therefore subject to a development contributions (DC) assessment. A minor residential unit is however entitled to have the benefit of the Small Residential Unit adjustment which can reduce the DC requirement by up to 40%. A further 10% reduction can be applied to developments that meet the Council's Small Residential Unit Rebate Criteria.
Applications to develop a new family ﬂat, or convert a family ﬂat that did not exist prior to 6 December 2013 into a residential unit, will be assessed for development contributions, but will be eligible for a Small Residential Unit adjustment.
For more information or enquiries please contact the Duty Planner.