Smoke Alarm Compliance When Selling Your Home in Queensland
Queensland's smoke alarm laws changed in 2022. If you are selling, the upgrade to interconnected photoelectric alarms is your obligation. Here is what the law requires, how to check if your alarms comply, and what it costs to get there.
Smoke alarm compliance is one of the most common last-minute surprises for sellers in Brisbane. Many sellers, particularly in the older housing stock that makes up much of the inner east, have been living with smoke alarms that were adequate under the previous standard but do not meet the requirements introduced in Queensland from January 2022. The requirement is not optional, the obligation sits with the seller, and the cost of non-compliance is greater than the cost of getting it right before you list.
This article covers what Queensland's current smoke alarm legislation requires for sellers, how to check whether your existing alarms are compliant, and what to do if they are not. It is not complex, but it is worth understanding before you reach contract stage rather than after.
Queensland's smoke alarm rollout
Queensland's updated smoke alarm legislation was introduced in stages. New dwellings and substantially renovated dwellings have been required to comply since 2017. From 1 January 2022, the requirement extended to all properties being sold or leased. A final stage of the rollout will bring all remaining owner-occupied Queensland homes into compliance by 1 January 2027.
If you are selling in 2026, you are in the 2022-onwards phase. The requirement applies to your sale regardless of when your home was built. Properties built before the new standard can still be sold, but they must be upgraded to meet the new smoke alarm standard before settlement.
What the law requires
Queensland's fire safety legislation requires that smoke alarms in a property being sold must meet three specific requirements.
Photoelectric, not ionisation. Photoelectric smoke alarms detect visible smoke particles and are more effective at detecting smouldering fires. The previous standard permitted ionisation alarms, which detect combustion products and are better suited to flaming fires. Ionisation alarms are no longer compliant for Queensland homes being sold or leased. The type of alarm is marked on the alarm casing: look for the word "photoelectric." If your alarms do not say photoelectric, they are likely ionisation type and do not comply.
Interconnected. All smoke alarms in the property must be interconnected, meaning that when one alarm detects smoke and activates, all alarms in the property activate simultaneously. This is a material safety requirement: it ensures that an alarm triggered in a bedroom at the rear of the house also activates the alarm near the front door, giving everyone in the property a warning regardless of where the fire starts. Interconnection can be achieved via hardwiring or via radio frequency interconnection (some wireless interconnected alarms are now available). Battery-only alarms that operate independently are not compliant unless they are specifically designed with wireless interconnection capability.
Correct locations. Alarms must be installed in every bedroom in the home, in every hallway that connects bedrooms to the rest of the house, and on every storey of the property. If a storey has no bedroom, an alarm is still required on that storey. Multi-storey homes need alarms on every level, not just the sleeping level. Missing a required location is a non-compliance even if the existing alarms are the correct type and interconnected.
How to check your existing alarms
Start by reading the label on each alarm in your property. The label will identify the alarm type. If it says "photoelectric" or "optical," it is the correct type. If it does not say this, or if it says "ionisation," it does not comply.
Next, check whether the alarms are interconnected. Test this by pressing the test button on one alarm and listening to see whether the other alarms in the property also activate. If they do, the alarms are interconnected. If only the tested alarm sounds, they are operating independently and are not interconnected.
Finally, check the locations. Walk through the property and confirm that every bedroom has an alarm, every hallway connecting bedrooms to the rest of the home has an alarm, and every storey has at least one alarm. Properties with open-plan layouts or unusual configurations should be assessed by an electrician or compliance specialist if there is any uncertainty about whether the location requirements are met.
If your alarms pass all three checks (photoelectric type, interconnected, correct locations), you are compliant for sale. If any of these checks fails, the alarms need to be upgraded before settlement.
What it costs to get compliant
The cost of upgrading to a compliant interconnected photoelectric smoke alarm system depends on the size of the property and the number of alarms required. For a standard three to four bedroom home in Brisbane's inner east, professional installation typically costs between $300 and $800. Larger homes with more bedrooms, multiple storeys, or more complex layouts may cost more. Homes where the existing wiring does not easily support hardwired interconnection may require a wireless interconnection solution, which some installers price at a premium.
The installation should be carried out by a licensed electrician or a specialist smoke alarm compliance company. While some interconnected wireless alarm systems are marketed as DIY-installable, professional installation provides certainty that the alarms are correctly positioned, properly interconnected, and compliant with Queensland's requirements. A professional installation also typically comes with documentation that you can provide to your conveyancer confirming compliance.
Several Queensland companies specialise specifically in smoke alarm compliance for property sales and rentals and offer fixed-price installation packages for standard home configurations. These companies can typically complete the installation quickly once booked, which is worth knowing if you are preparing to list in the near term.
The seller's obligation
Smoke alarm compliance is the seller's obligation. This means that at the time of settlement, the property must meet the smoke alarm standard. It is not the buyer's responsibility to upgrade the alarms after purchase (unlike the pool safety Form 36 option, where a buyer can take on the compliance responsibility in specific circumstances). The Queensland fire safety legislation creates a direct obligation on the seller, and if a buyer discovers after settlement that the alarms are non-compliant, they have a statutory right to claim the cost of rectification from the seller.
Conveyancers handling Queensland property sales typically include smoke alarm compliance as part of their pre-settlement checklist and will ask you to confirm compliance. Having the upgrade completed and documented before you engage your conveyancer removes this as a point of uncertainty in the settlement process.
Smoke alarms and the broader pre-sale compliance checklist
Smoke alarm compliance sits alongside pool safety certification, the Mandatory Seller Disclosure Statement, and building and pest inspection preparation as part of the compliance work sellers need to address before a property goes to market. None of these items is difficult to manage when they are addressed early. All of them become more complicated when they are left until the campaign is under way or, worse, when they are discovered by the buyer during due diligence or at the pre-settlement inspection.
The practical approach is to treat the compliance checklist as part of your listing preparation, alongside any building repairs and styling work. Budget for it, get quotes early, and have the work completed before the first open home.
Preparing to sell? Daniel walks sellers through the pre-sale compliance checklist at the appraisal stage, including smoke alarm requirements, pool safety, and other mandatory obligations. Starting this process early means no last-minute surprises. Get in touch.
Smoke alarm requirements are set under the Fire and Emergency Services Act 1990 (Qld) as amended. The staged rollout dates and technical requirements are as at 2026. Confirm current requirements with a licensed electrician or smoke alarm compliance specialist before listing. This article is general information only and does not constitute legal or compliance advice.