Queensland smoke alarm laws: what every home needs by 1 January 2027
Short answer
By 1 January 2027, every existing house, townhouse, unit and manufactured home in Queensland must have photoelectric smoke alarms that are interconnected (when one sounds, they all sound), comply with AS 3786-2014, and contain no ionisation sensor. You need one in every bedroom, in hallways connecting bedrooms to the rest of the home, and on every storey. You can install alarms powered by a 10-year non-removable battery yourself; hardwired 240 V alarms must be installed by a licensed electrician.
Queensland has some of the strictest smoke alarm laws in Australia, and the final stage lands on 1 January 2027. Since 2022, the rules have applied whenever a home is sold or leased. From 2027 they apply to every home, including the one you own and live in.
Here’s what compliant actually means, how many alarms you need, and which parts of the upgrade you can do yourself.
The deadline, stage by stage
| From | Who it applies to |
|---|---|
| 1 January 2017 | New homes and substantially renovated homes |
| 1 January 2022 | Homes being sold or leased (including every rental) |
| 1 January 2027 | All remaining homes: houses, townhouses, units and manufactured homes |
You don’t need to register or report anything to the Queensland Fire Department. But when you sell, you may need to show that your home complies.
What a compliant smoke alarm is
Every smoke alarm in the home must:
- Be photoelectric, and not contain an ionisation sensor. Older alarms with a radiation symbol are ionisation types and must go.
- Comply with AS 3786-2014. It’s marked on the alarm body; you may need to twist it off its bracket to see.
- Be interconnected with every other alarm in the home, so when one sounds, they all sound. Wireless interconnection counts.
- Be powered by either:
- mains power (hardwired 240 V) with a backup battery, installed by a licensed electrician, or
- a 10-year non-removable battery, which you can install yourself.
- Be less than 10 years old. Alarms must be replaced when they expire or stop working.
Where they go (and how many you need)
Queensland requires a smoke alarm:
- In every bedroom.
- In hallways that connect bedrooms to the rest of the home. If there’s no hallway, between the bedrooms and the rest of that storey.
- On every storey. If a storey has no bedrooms, put at least one in the most likely path of travel out of the home.
Worked examples:
| Home | Minimum alarms |
|---|---|
| Single-storey, 3 bedrooms off one hallway | 4 (3 bedrooms + 1 hallway) |
| Single-storey, 4 bedrooms in two wings | 6 (4 bedrooms + a hallway in each wing) |
| Two-storey, 3 bedrooms upstairs, living downstairs | 5 (3 bedrooms + upstairs hallway + downstairs exit path) |
| 2-bedroom unit, no hallway | 3 (2 bedrooms + 1 between the bedrooms and living area) |
Every layout is different. Walk your home with the list above, and if in doubt, add one.
Can I install them myself?
Yes, if you use 10-year battery alarms. The Queensland Fire Department says photoelectric alarms powered by 10-year non-removable batteries “can be installed yourself”. Buy a set that interconnects wirelessly (they usually have to be the same brand and system), screw the brackets to the ceiling, and pair them following the instructions.
No, if they’re hardwired. Anything connected to 240 V mains is licensed electrical work, like every other fixed wiring job in Australia. See what electrical work you can legally DIY.
Already have hardwired alarms? Check the fine print: when you replace expired or faulty alarms, the Queensland Fire Department says to replace them with whichever type applied when the home was built. The Building Code has required hardwired alarms in new homes since July 1997, so those get replaced with hardwired alarms by an electrician, not swapped for battery ones.
How to check what you have now
- Look underneath each alarm (twist it off the bracket). Check for the AS 3786-2014 marking, the manufacture or expiry date, and the sensor type. “Photoelectric” is good; a radiation symbol means it’s ionisation and must go.
- Press test on one alarm. If they’re interconnected, every alarm in the home sounds. If only one sounds, they’re not interconnected.
- Count them against the bedroom, hallway and storey rules above.
- Note the expiry dates. Every alarm must be replaced at least every 10 years.
Don’t leave it to December
Anyone who needs an electrician will be competing with every other Queenslander who left it late. Book now for hardwired upgrades. For battery alarms, it’s a weekend job, and one you can do today.
After you’ve upgraded
Compliance isn’t a one-off. Fire and Rescue NSW recommends testing smoke alarms monthly, vacuuming them every six months, and replacing them at least every 10 years. Put the expiry date somewhere you’ll see it. In Jib, you can set a monthly “test smoke alarms” job and a reminder for the 10-year replacement date. See the full home maintenance checklist for everything else worth checking.
Frequently asked questions
Does this apply to owner-occupied homes? Yes. From 1 January 2027, the requirement covers all existing private homes, townhouses, units and manufactured homes in Queensland, not just rentals and homes being sold.
Do I need an electrician? Only for hardwired (240 V) alarms. Alarms powered by a 10-year non-removable battery can be installed yourself.
Can I mix hardwired and battery alarms? Some homes legitimately have both, because rules changed over time. What matters is that every alarm is photoelectric, compliant and interconnected with all the others. Some systems can link wireless battery alarms to hardwired ones; check with an electrician.
What about renters? Rental properties have had to comply since 1 January 2022. It’s the landlord’s responsibility; tell your landlord or agent if an alarm isn’t working.
Is there a fine? The requirement is law under the Fire Services Act 1990. More importantly, compliant interconnected alarms give everyone in the house the earliest possible warning, wherever the fire starts.
Sources
Every rule on this page is taken from these official sources. If a rule has changed, please tell us and we’ll fix it.
This guide is general information, not legal or professional advice. Rules differ between states, councils and individual properties, and they change. Confirm with your state regulator or council before starting work, and if in doubt, get a licensed tradesperson.