Which renovation adds the most value?

In Australia, the top 3 are: (1) Kitchen renovation (150-200% ROI), (2) Bathroom renovation (120-180% ROI), and (3) Cosmetic refresh — paint, floors, landscaping (200-300% ROI). Street appeal has the biggest impact on first impressions. Structural extensions add more dollar value but lower percentage returns.

What is over-capitalisation?

Over-capitalisation means spending more on improvements than they add to the property's value. For example, installing a $100K pool that only adds $50K to the value, or renovating a $500K house to a standard typical of $1M+ homes. The ceiling value in your suburb limits how much value renovations can add.

Renovation ROI Calculator

AI + Live Data

Calculate the return on investment from property renovations. See which upgrades add the most value and which are money pits.

Free to useNo data storedAI insightsUpdated: February 2026

Not all renovations are equal — a kitchen renovation typically returns $1.50-$2.00 for every $1 spent, while a pool might return only $0.50. The secret is knowing which renovations add the most VALUE relative to cost in your specific market. Cosmetic upgrades (paint, floors, landscaping) often deliver the highest ROI at 200-300%, while structural changes (extensions, extra rooms) add more dollar value but at a lower percentage return. This calculator helps you prioritise your renovation spend for maximum impact.

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Real-World Examples

Kitchen Renovation — $40K Budget

Property value: $700K. Spending $40K on a full kitchen renovation including new appliances, benchtops, and cabinetry.

Expected value added: $60K-$80K. ROI: 150-200%. New property value: $760K-$780K. Net gain: $20K-$40K. This is one of the highest-ROI renovations, especially for properties more than 15 years old with original kitchens.

Frequently Asked Questions

Glossary

Over-Capitalisation

Spending more on property improvements than the increase in property value. Common when renovations exceed the suburb's price ceiling.

Renovation ROI

Return on investment from renovation, calculated as value added divided by renovation cost, expressed as a percentage.

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Rental Yield Calculator

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How to Use

1Enter your property's current market value.
2Select the type of renovation you're planning.
3Set your renovation budget.
4Choose your purpose: sell, rent, or live-in.
5Select DIY vs professional split.
6See estimated value added, ROI percentage, and comparative data.

Key Information

Highest ROI renovations: Cosmetic refresh (200-300%), kitchen (150-200%), bathroom (120-180%).
Lowest ROI renovations: Pool (50-80%), high-end finishes (60-90%), over-capitalisation risk.
The 10% rule: don't spend more than 10% of the property value on a single renovation unless adding significant floor space.
Street appeal improvements (paint, landscaping, fencing) can add 5-10% to sale price for minimal cost.
Rental renovations focus on durability and maintenance-free finishes, not luxury.

Pro Tips

Before renovating to sell, get 3 agent appraisals: one 'as-is' and one 'after renovation'. The gap is your true value-add potential.
Over-capitalisation is the #1 renovation mistake — don't install a $60K kitchen in a $500K house.
For rentals, spend on things that reduce maintenance (hard floors over carpet, quality taps) rather than aesthetics.
Paint is the single highest-ROI improvement: $3,000-$8,000 to repaint a house can add $30,000-$60,000 in perceived value.

Avoid These Mistakes

Over-capitalising — spending $100K on a renovation that only adds $60K in value.
Renovating to YOUR taste when selling — buyers want neutral, modern finishes.
Not getting council approval for structural changes — non-compliant work can REDUCE property value.
DIY work that looks DIY — poorly finished work detracts from value.

Disclaimer: This calculator provides estimates only and should not be relied upon for financial decisions. Interest rates, fees, and policies change frequently. Always verify information with lenders directly. This is general information, not personal financial advice. Consider seeking advice from a licensed mortgage broker or financial advisor.

Last updated: February 2026