Bushfire Safety Guide for Australian Homes

Updated 7 November 2026 · Standard formula, shown below

This guide explains how to prepare your Australian home for bushfire season, covering practical steps for property maintenance, emergency planning, and survival during a fire. You’ll learn what to do before, during, and after a bushfire, including how to create a defendable space and when to leave early.

Understanding Bushfire Risk in Australia

Bushfires are a natural part of the Australian landscape, but climate change and population growth have increased the number of homes in high-risk areas. The Bureau of Meteorology declares a bushfire season for each state, typically during the hotter, drier months from October to March, but fires can occur at any time when conditions are severe. Your local council or fire authority can tell you your specific risk level based on your location, vegetation, and slope.

Fire authorities use a Fire Danger Rating system (FDR) to warn the public: Moderate, High, Extreme, and Catastrophic. On Catastrophic days, even well-prepared homes may not be defendable, and leaving early is the only safe option. Understanding your risk helps you decide whether to stay and defend or leave.

Creating a Defendable Space

The single most effective way to protect your home is to create a defendable space—an area around the house where you’ve reduced flammable material. This slows the fire’s approach and reduces radiant heat. The required width varies by state and vegetation type, but a common recommendation is at least 20 metres on flat ground, more on slopes.

Clear vegetation: Remove dead leaves, twigs, and bark from gutters, roofs, and the ground.
Trim trees: Keep branches at least 2 metres away from your roof and overhanging limbs removed.
Mow grass: Keep lawns short (under 10 cm) and water them if possible.
Space plants: Use low-flammability plants and space them so fire can’t easily jump between them.
Store combustibles: Move woodpiles, LPG cylinders, and outdoor furniture at least 10 metres from the house.

Hardening Your Home Against Embers

Ember attack is the leading cause of home loss during bushfires—burning debris can travel up to 40 km ahead of the fire front. Sealing gaps and using fire-resistant materials dramatically improves your home’s survival chance.

Roof: Install metal mesh (1.5 mm) over roof gaps, vents, and eaves to block embers.
Windows: Fit metal flyscreen mesh on windows and keep them closed during a fire.
Doors: Use solid doors with weather seals and install door snakes to block smoke and embers.
Gutters: Clean them regularly and consider metal gutter guards.
Underfloor: Enclose the space under your house with non-combustible material.

Your Bushfire Survival Plan

Every household in a bushfire-prone area must have a written survival plan. It should answer: Will you leave early or stay and defend? If you stay, who does what? If you leave, where will you go and what will you take?

Decide your trigger: Choose a specific condition (e.g., FDR High, or a road closure) that makes you leave.
Prepare your go-bag: Include water, medications, important documents, phone chargers, and protective clothing (long sleeves, leather gloves, mask).
Know your exit routes: Plan at least two ways out of your area, and check that they’re not blocked.
Communicate: Tell family, neighbours, and friends your plan and a meeting point.
Practice: Run a drill so everyone knows what to do.

If you plan to stay, you must be physically and mentally prepared to fight a fire for hours. Most fire authorities recommend leaving early, especially on Extreme or Catastrophic days.

During the Fire: What to Do

If you are at home when a fire approaches, your actions depend on whether you’re staying or leaving. If you’re leaving, go early—don’t wait for an official warning. If you’re staying, follow these steps:

Wear protective clothing: Long-sleeved natural fibre shirt, long pants, leather boots, gloves, and a mask.
Fill containers: Buckets, troughs, and your bathtub with water.
Block embers: Close all windows, doors, and vents. Block gaps with wet towels.
Move furniture: Bring outdoor furniture and doormats inside.
Monitor: Listen to ABC radio or your local emergency broadcaster for updates.
Shelter: When the fire front arrives, go inside the house, away from windows, and stay there until it passes.

After the Fire: Safety and Recovery

Once the fire has passed, danger remains. Hot spots, falling trees, and damaged utilities can cause injury. Wait for official advice before returning to your property, and be aware of:

Spot fires: Embers can ignite new fires for hours after the main front.
Structural damage: Check for weakened walls, roofs, and chimneys before entering.
Utilities: Turn off gas, electricity, and water if you suspect damage, and don’t touch downed power lines.
Ash and debris: Wear gloves and a mask when cleaning; ash can be toxic.
Insurance: Document damage with photos and contact your insurer as soon as possible.

Common Mistakes and Misconceptions

One common myth is that a well-prepared home is always safe to defend. Even with a defendable space and ember-proofing, extreme conditions can overwhelm any home. Another mistake is waiting for an official evacuation order—by then, roads may be blocked, and you may be trapped. Many people also underestimate the psychological toll of staying; fighting a fire is exhausting and terrifying. Finally, don’t rely solely on a garden hose or a dam; you need an independent water supply (e.g., a tank with a pump) if mains water fails.

Frequently Asked Questions

What is the best time to leave during a bushfire?

Leave the night before or early in the morning on a day with a High or above fire danger rating. Do not wait for a warning or for the fire to be visible—by then it’s often too late.

Can I stay and defend my home if I have a fire truck?

Having a fire truck or a pump does not guarantee safety. You need adequate water, protective clothing, and the physical and mental stamina to fight a fire for hours. Fire authorities still recommend leaving early, especially on Extreme or Catastrophic days.

What should I put in my emergency go-bag?

Include water (at least 3 litres per person), non-perishable food, a first-aid kit, medications, important documents (ID, insurance), a torch, batteries, a phone charger, cash, and a change of clothes. Keep it by the door.

How do I know if my home is in a bushfire-prone area?

Check your local council’s planning maps or the national Bushfire Prone Areas map. You can also contact your state’s fire authority (e.g., NSW RFS, CFA in Victoria). If you’re near bushland or grassland, you’re likely at risk.

Is it safe to use a generator during a power outage after a fire?

Yes, but only outdoors and away from windows. Generators produce carbon monoxide, which can be fatal in enclosed spaces. Never run one inside your home, garage, or shed.

Method: the standard formula for this calculation, rounded as each result states. See how the calculators work or report an error.