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Buildability and out-of-plan development

Updated: August 2026·1 min read

A parcel is artio (compliant) when it meets the minimum conditions for building (area, frontage, depth), and buildable when it additionally allows construction under the terms in force. The two are not always the same.

The 4,000 m² rule

For out-of-plan development, the general buildability rule is 4,000 m². There are exceptions (e.g. smaller "by-derogation" compliant plots under conditions) that depend on the area and dates.

Road access

Out-of-plan building usually requires frontage on a recognised public road. A "landlocked" parcel may need an easement of way for access.

What to check

Area alone is not enough: request a building-terms certificate from the competent Building Service and confirm compliance, frontage and any special restrictions (forest, foreshore, archaeological).

Frequently asked questions

How many square metres are needed to build out of plan?

The general buildability rule is 4,000 m², with possible exceptions depending on the area and dates.

Are 'compliant' and 'buildable' the same?

Not always. Compliant meets the minimum conditions; buildable additionally allows construction under the terms in force.

Is road access required?

Yes, out-of-plan building usually requires frontage on a recognised road.