Aussies are staying put—whether the property’s in a flood zone, a cyclone belt or bushfire country. And plenty of buyers are still chasing coastal and lifestyle areas, even when the risk’s rising.

Cotality’s data shows that by 2050, around 1.5 million Australians could be exposed to sea-level rise, impacting up to 2.6 million homes. Coastal, inland and regional areas could all see big hits to value—and tougher, more expensive recovery after major events.

What that means on the tools: more than 1.6 million homes are already at moderate to high climate risk, and that’s tipped to hit 2.6 million by 2050. Coastal and inland regions could face devaluations topping $600 billion by 2050. Up north and along parts of the coast, properties can cop multiple risks at once—heat, cyclones and bushfire—so the demand for practical retrofit and resilience upgrades is only going one way.

More than 55% of Australia’s housing stock is now 30 years old or more—around 6 million properties showing their age. While national averages are patchy, regional figures point to homes averaging about 32.7 years in Tasmania and 38.7 years in WA. That’s a massive pipeline of renos, repairs and upgrades. In South Australia, 63.7% of homes are over 30 years old, and in NSW it’s 60.3%.

Hardening homes: steady work for tradies

A brick home in Australia generally lasts about 88 years, while timber homes typically last about 58. On top of that, people are holding onto their places longer—average holding periods have almost doubled over the last 10 years, with houses now held for around 11.3 years. Longer ownership means more maintenance, more upgrades and more appetite for resilience work that protects the asset.

“Bushfire projections have increased in frequency,” said Jamie Knippen, senior product manager at Cotality, a property data analytics firm. “Drought conditions are driving more fires in places we’ve never seen them before.”

Better mitigation is starting to link directly to insurance outcomes. If you can help a client reduce risk with sensible upgrades, it can translate into real savings—Knippen notes proactive protection can deliver around a 20% reduction in premiums in some cases.

Insurance implications (and why clients are asking more questions)

Home insurance premiums in Australia have jumped by more than 50% in the five years to October 2025, with the average policy sitting at roughly $2,938 a year. Higher rebuild costs, more frequent natural disasters and rising reinsurance costs are all pushing prices up. Premiums are highest in North Queensland and the Northern Territory, and plenty of households are feeling the squeeze.

The increased frequency and severity of floods, cyclones and bushfires have led to $22.5 billion in damages over the past five years. According to the Actuaries Institute, insurance affordability stress is on the rise, with roughly 15% of Australians finding premiums unaffordable.

Tradies can help cut risk with smarter design and well-scoped upgrades. In high-wind areas, details like hip roofs, quality roof tie-downs, sealed sarking and reinforced garage doors can make a real difference. Metal roofing can last longer and handle wind better, though it’s a bigger upfront spend. In bushfire-prone areas, specify non-combustible roofing and cladding where possible, fit ember-resistant vents, seal gaps where embers can get in, and use toughened (tempered) glass for exposed windows.

Landscaping matters too—low-flammability plants, clearances and ongoing fuel-load management all help.

Other solid wins include trimming back overhanging branches, lifting electrical and critical services above known flood levels where practical, upgrading drainage, and allowing for backup power (generator or solar + battery) for essentials.

Plenty of builders are also leaning into panelised and modular builds designed for tougher conditions—stronger connections, repeatable detailing and faster site time—while keeping a lid on costs (which can help offset rising insurance bills for clients).

On bigger jobs (or estates), it’s worth thinking beyond the house. Extra water storage and smart site planning can support emergency water use—like dedicated tanks, hydrant access or on-site storage designed into the landscape. That can be tricky in drought-prone areas, but it’s a practical conversation to have early with designers and clients.

Today’s technology helps tradies deliver

Knowing and implementing all if this to be effective in practices isn’t easy, but technology can help. Buildxact’s Blu Estimate Review tool can help you pick up missing line items and notes—especially where you’re quoting or estimating in flood, cyclone or bushfire-prone areas.

Using Blu on a custom home in a wildfire prone area, delivered these considerations:

  • Add clear line items for defendable space and site prep, including: (1) vegetation clearance within the required distances; (2) pruning/thinning and ongoing maintenance in outer zones; (3) non-combustible ground cover (gravel, concrete, pavers) close to the building; and (4) a note referencing the relevant state/territory guidance and the project’s bushfire assessment (including BAL rating where applicable).
  • Tighten up roofing line items so they clearly state the required bushfire performance level (e.g., to suit the nominated BAL) and NCC compliance. Call up the specific roof covering, sarking/underlay, ember protection at the eaves, and the flashings/details needed—don’t leave it as a generic “Colorbond roof” line.
  • Add line items for ember-resistant vents and screens (including mesh specs where required), and nominate non-combustible or bushfire-resisting soffit/eave linings. Make sure the scope includes sealing gaps at roof/wall junctions, around services penetrations, and at subfloor/roof cavities where embers can enter.
  • Call up the exact external wall system and cladding for bushfire exposure and confirm it’s non-combustible or bushfire-resisting (e.g., fibre cement, masonry, rendered systems). Flag any combustible options early. Specify toughened glazing where required, plus compliant window/door frames, seals and ignition-resistant trims.
  • Include scoped allowances for any required on-site fire measures—like dedicated water storage (tank + fittings), pumps, hose connections, asset protection zones, and compliant property access (driveway width/grade/turnarounds) for emergency vehicles. Note the relevant planning conditions and bushfire requirements so everyone’s clear on what’s included.

Similar estimate reviews can be done and saved within Buildxact for flood prone or cyclone prone areas. Learn more about Buildxact now or book a demo.