Retaining walls fall into two categories: low landscaping walls and engineered retaining walls. Generally a retaining wall under 1.2 metres high does not require building consent, but anything above that height usually requires professional engineering planning and a building consent. Consents may be required even for lower walls if they are bearing unusually heavy loads (such as road traffic etc) or if the ground is unstable. Mr Fencer can advise when professional engineering assistance may be required. We are also able to provide site preparation, excavation and back-fill as well as construction of the retaining wall itself.