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Misunderstandings; Council does not preapprove any technology as it is not within their right to affect the free market. You may find the BCA’s might have a preference but this is due to historical knowledge and ease of understanding.
Meaning; Approval is giving on a case by case basis to each individual consent application. This simply means the BCA has approved your application to go ahead with the proposed designs and technologies.
A design solution deemed to comply with the Building Code that is pre-approved and therefore has fewer compliance costs associated. This does not mean that the technology you have specified is in its-self approved, only the solution is deemed to be acceptable such as Composting Toilet for use in all rural areas without mains connection.
A certificate issued by a BCA at the completion of building work, confirming that the building work complies with the building consent.
Building work that requires building consent and relates to an element of a building that is critical to the integrity of the building and the health and safety of its occupants this includes, without limitation, work on the building envelope, the structural support of a building and all waste facilities including Composting Toilets. Generality Restricted building work must be carried out, or supervised by, a licensed building practitioner and in the event that something such as a composting toilet system is installed by a DIYer the Council will need to inspect in person that the installation complies with the building consent given, at which point they will sign-off on your installation giving you a CCC.