Plumbers' technical note – Multi-unit developments

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For the purpose of this technical note, a “multi-unit development” for sanitary drainage is defined as a development of three or more residential Class 1a buildings limited to a height of three storeys. A “multi-unit development” for a water service is defined as the main lines of water services located within common property of a multi-unit development of 20 or more residential buildings up to three storeys in height.

Building Commission
Technical standards
Last updated 16 Aug 2017

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