Top Mistakes to Avoid When Renovating an Older Home in Cairns

June 12, 2025 Residential

Building Inspection

Renovating in Cairns? Don’t Let These Common Mistakes Derail Your Project

Older homes in Cairns can be full of character – timber floors, high ceilings, and tropical charm. But renovating them without the right planning can lead to big costs, delays, or even damage.

If you’re renovating a Queenslander, colonial cottage, or 60s brick home, here are the top mistakes to avoid — and how to do it right. If you are weighing up renovating a home in Cairns, our renovations and extensions page covers the process end to end.

Building Inspection

1. Not Starting with a Full Building Inspection

Why it matters:

Older homes often hide structural issues that aren’t visible at first glance.

Common hidden issues:

  • Termite damage
  • Rotted timber framing
  • Uneven or sinking stumps
  • Rusted roof sheets or gutters
  • Outdated or unsafe wiring

Tip: Hire a licensed building inspector before you lift a hammer.

2. Underestimating Costs

Renovating older homes can uncover more work as you go — and that means higher costs.

Always budget for:

  • Structural fixes
  • Asbestos removal
  • Rewiring and plumbing upgrades
  • Council permits or heritage approvals

Tip: Add a 15–20% buffer to your budget for unexpected surprises.

Building Materials

3. Choosing the Wrong Materials for Cairns’ Climate

Cairns is hot, humid, and prone to cyclones. Not all materials are up to the task.

Material ChoiceWhat to AvoidBetter Alternative
FlooringBasic laminate or cheap vinylMoisture-resistant engineered timber
RoofingLightweight tiles not rated for cyclonesColorbond steel or zincalume roofing
PaintStandard indoor paintMould-resistant, tropical-rated paint
WindowsSingle-glazedTinted, cyclone-rated double glazing

Tip: Use local, weather-tested products. Ask your builder what’s proven to last in FNQ conditions.

4. Ripping Out Heritage Features

Old homes in Cairns often have timber casement windows, tongue-and-groove walls, or fretwork details — removing these can reduce the home’s character and value.

What to keep:

  • Timber floorboards (sand and re-seal them)
  • VJ wall panels
  • Timber sash windows (with upgrades if needed)
  • Verandahs and decorative trims

Tip: Blend old with new. Retain period features and modernise where it counts — kitchens, bathrooms, lighting, and insulation.

Insulation being placed in walls

5. Poor Insulation and Ventilation Planning

Pre-1970s homes weren’t built with energy efficiency in mind. In Cairns, proper airflow and insulation are essential.

What to improve:

  • Add insulation to roof and underfloor
  • Install ceiling fans in every room
  • Use cross-ventilation and louvres
  • Add whirlybirds or ridge vents to the roof

Tip: Good ventilation keeps the home cooler and reduces mould and energy costs.

6. Skipping Council Approval

When approvals are needed:

  • Moving or replacing structural walls
  • Changing the roof height or shape
  • Extending or lifting the home
  • Working on a heritage-listed property

Tip: Talk to a builder or certifier early — not all work needs council sign-off, but it’s critical to check first.

Dont DIY Everyhting

7. Going Too Hard on DIY

Some things are okay to DIY, like painting or minor demolition. But…

Leave these jobs to the pros:

  • Electrical work
  • Plumbing and gas
  • Roofing
  • Structural changes
  • Asbestos removal

Tip: If it needs a licence, don’t DIY it. You could void insurance or face fines.

8. Forgetting to Future-Proof

You’re spending good money — make it count long-term.

Consider:

  • Extra storage space
  • A study nook or guest room
  • Accessible bathrooms for future needs
  • Split air-con in key rooms
  • A covered outdoor area for the tropics

Tip: Think ahead to your lifestyle in 5 or 10 years – not just now.

Quick Checklist: What to Do Before You Renovate

TaskWhy It’s Important
✅ Building inspectionFinds hidden problems early
✅ Budget with a bufferPrepares you for surprises
✅ Talk to council or certifierConfirms if approvals are needed
✅ Engage local tradesEnsures quality and climate knowledge
✅ Choose tropical-appropriate materialsLonger lifespan, better performance

Final Thoughts

Renovating an older home in Cairns can be incredibly rewarding — but only if done right. Avoiding these common mistakes will save you time, stress, and thousands of dollars. The key is to plan properly, budget realistically, and work with local experts who understand the unique demands of building in Far North Queensland.

Need help with your renovation?

At MYBUILD Residential, we specialise in renovations for Cairns’ climate and building styles — from Queenslanders to post-war homes. Let’s bring your vision to life, the right way.

About the Author

Beau Moriarty is the dynamic founder and owner of MYBUILD Group, a leading construction company based in Cairns. With expertise spanning custom home renovations, commercial developments, and civil projects, Beau has built a reputation for delivering high-quality, innovative solutions tailored to client needs. Under his leadership, MYBUILD Group excels in creating functional and aesthetically pleasing spaces, supported by a talented team and top-tier contractors. Beau’s dedication to craftsmanship and customer satisfaction ensures that every project, from bathroom makeovers to large-scale builds, meets the highest standards