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Smoke Alarms

New Zealand’s domestic smoke alarm rules have changed.

From 2 November 2024, all building consent applications for housing must specify inter-connected smoke alarms. This new rule applies to both new builds and alterations to existing housing.

An overview of the main points concerning inter-connected smoke alarms for houses is included below. Click here for more detail, including mounting and spacing requirements.

Inter-connected smoke alarms for houses

These smoke alarms work together – if one smoke alarm detects a fire, all the smoke alarms in the home will sound the alarm.

Smoke alarms will need to be installed in all bedrooms, living spaces, hallways and landings. Multi-level households will need at least one smoke alarm on each level.

The Standard provides the option to use wired-in or wireless smoke alarm systems. A wireless system uses long-life batteries (minimum 10 years). The Standard also has recommendations on which types of detection methods the alarms should have in different areas of a home.

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