Any subdivision will require subdivision consent from the local authority. This is a type of resource consent, which is additional to any land use consent that may be required for building.
The subdivision consent once obtained will contain conditions that must be fulfilled prior to the completion of the subdivision. It is important to be aware of the significance of all of these conditions at the outset. If any are considered to be too arduous, or to not relate to the activity being proposed, then a challenge to it should be considered.