General information only — not legal advice. Smoke alarm requirements vary by building type and date of construction. Always verify with your state fire authority. Last updated: January 2026.
Photoelectric alarms detect slow-smouldering fires (most common in homes) faster. They are now the required type in most Australian states.
Ionisation alarms detect fast-flaming fires. They are being phased out across Australia as they are slower to detect the fires that kill most people in residential settings.
Tenancy law changes constantly.
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