Do I need a building consent?

A building consent is required before building a garage.

What information is needed?

Specific information to include in a building consent application for a residential garage:

  • Site plan including the location of the proposed garage and the other buildings on-site.
  • Garage construction details. These are often a proprietary design as they are generally not designed to the same Standards as a dwelling (i.e. not NZS3604).
  • Firewall construction details if the garage is to be located within one metre of a boundary.

Note: Using a qualified draughtsperson or architect should lead to reduced processing times and costs.

Your garage/workshop may fit into the schedule for a fixed fee. The key criteria are: garage/workshop footprint is < 54 m2, of specific design (Versatile, Skyline etc.), constructed with light timber/steel frame without services, linings or firewall. Fixed fee does not apply to masonry/concrete structures.

Guidance documents for the rebuild in Canterbury

From February 2013 there was a change to how the foundations are to be designed for Standalone Importance Level 1 Garages if they are to be built in land categorised as TC3 land or land which may be subject to liquefaction.

These foundations are to be designed as TC2 type slabs/foundations with supporting evidence of the ground bearing capacity, i.e. shallow soil investigations are required to show the ultimate bearing capacity is greater than 200 kPA. Alternatively a specific design can be determined by applying the 1/100 year design event loadings at ULS (Ultimate Limit State).

Where these buildings are located in TC2 land, TC1 type foundations can be used (standard NZS3604:2011). This should be reflected in any building consent application lodged with the Council from 25 February 2013.  For more information please visit the Ministry of Business, Innovation and Employment website.