Do you know that the following rules apply to properties constructed in various parts of Australia by the National Construction Code (NCC) formally called the Building Code of Australia (BCA) and the manufacturing standard AS 3786:2014

Victoria Australia: All homes must have a smoke alarm on every level. If built before 1st August 1997 they may be battery powered. If built or majorly renovated after then, they must be connected to the main supply.
Homes constructed or major renovation after 1st May 2014 are required to have interconnected alarms fitted.


Tasmania Australia: From 1st August 1997, both new residential buildings and residential buildings that have had renovations that necessitated a building permit must have a minimum of one smoke alarm on each level and be connected to the main supply.

Since 1st May 2016, all domestic rental properties are required to have smoke alarms fitted to every level and may be mains powered or by a 10yr non-removable battery

Northern Territory: Hard-wired alarms have been required since 7th January 1998. If the home was built before then, you must install an alarm, however it may be battery-powered. Since 1st November 2011, Photoelectric alarms are the only approved type for the NT. Where a battery alarm is installed in an older property it must be a 10yr non-removable battery type. The NT also requires installation in caravans and other movable dwellings.

NSW and ACT: Since 1st May 2006 all homes including caravans and moveable dwellings, have been required to have smoke alarms installed or retrofitted to every level of the house in accordance with the NCC.

Western Australia – Since 1st July 1997 mains powered smoke alarms have been mandatory for all new buildings or extensions and from 1st October 1997 mains powered alarms have been mandatory to be fitted to any property being rented, hired or sold (including transfer of ownership).

Battery-powered smoke alarms may be installed without local government approval where there is no hidden space in the existing dwelling in which to run the necessary wiring for hard-wired smoke alarms and there is no appropriate alternative location, for example where there is a concrete ceiling a 10yr non-removable battery must be used. Interconnection to other alarms is required for homes approved for construction after 1st May 2015. Interconnection is not required for any premises built before 1st May 2015.

Queensland – Has introduced the most stringent laws in the country. Since the 1st of January 2017, all homes approved for construction or substantially renovated are required to have additional alarms fitted to each bedroom and interconnected throughout the entire house.

In 2022 it will become mandatory to retrofit smoke alarms to each bedroom and interconnect them to the rest of the house for all rental properties and properties sold. This same requirement will be extended to all properties by 1st January 2027. Alarms retrofitted into existing properties may be powered by a 10y non-removable battery or hard-wired unless it is a significant renovation then it must be hard-wired. Only photoelectric alarms have been permitted since 1st January 2017.

Credit: https://masterelectricians.com.au/blog/smoke-alarm-requirements

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