With effective communication, most disputes are avoidable. It is important throughout the design process, that all parties keep each other informed of anything and everything that happens, and to do it in writing.
Should you find yourself in the unfortunate position of being in a dispute, some points you may wish to consider are;
In most cases the Contract of Engagement sets out the procedure for dealing with unplanned matters including simple disputes. Where arbitration is stated in the Contract of Engagement as the means of settling disputes, it must be followed. There have been cases where dispute has gone before the Courts, only to have the Judge send it back for the contracted arbitration.
The common methods used in dispute resolution are:
In cases where the practitioner is a Licensed Building Practitioner, there is also the complaints process administrated by the Department of Building & Housing. Information can be found at http://dbh.govt.nz/lbp-about-the-scheme#aid4
Notwithstanding the above, in certain circumstances recourse may be sought under the Consumer Guarantees Act, the Fair Trading Act, the Building Act, or the Sale of Goods Act.
If the dispute is unable to be resolved through the methods above, and the dispute is within the jurisdiction of the Disputes Tribunal, it is suggested that parties seek help there.
If the dispute is outside of the jurisdiction of the Disputes Tribunal, then it has to be placed with the District Court, and lawyers will be probably be engaged for each of the litigants. A point worth noting is that Courts by and large will give judgement according law, which does not necessarily equate to fairness.