Renovation Calculator

How renovation feasibility works

A renovation only makes sense if the value it adds comfortably exceeds what it costs to complete. That means estimating three things: the property's current value, its realistic value once the work is done, and the total cost of the renovation. The gap between the uplift in value and the money spent is the equity you create — and it is what separates a renovation that builds wealth from one that simply spends it.

This calculator turns those inputs into an equity uplift figure, a return on cost, and a break-even check, then projects your equity with and without the renovation over the years ahead. Higher rent after the work improves your position too. Enter your own figures above to see whether the numbers stack up before you commit.

Frequently asked questions

How is the equity uplift from a renovation calculated?

Equity uplift is the increase in the property's value beyond what the renovation cost you: expected post-renovation value minus the current value minus the renovation cost. If a $600,000 property is worth $750,000 after a $60,000 renovation, the uplift is $90,000 — the value you created above and beyond the money spent. This calculator shows that figure alongside the return on cost.

What is a good return on renovation cost?

A common investor rule of thumb is to aim for at least $2 of added value for every $1 spent, though results vary widely by market, property, and the type of work. Cosmetic renovations — paint, flooring, kitchen and bathroom updates — typically deliver the strongest returns; large structural work carries more risk. Enter your own numbers above to see the return and break-even for your project.

What does the renovation break-even mean?

Break-even is the point at which the value added by the renovation equals what you spent to complete it — the renovation has paid for itself in equity. Above break-even you are ahead; below it the work cost more than the value it created. The calculator flags whether your figures clear break-even.

How much do cosmetic versus structural renovations cost?

As a broad guide only, cosmetic refreshes can run from a few thousand dollars to $30,000–$50,000, a full kitchen or bathroom often $15,000–$35,000 each, and structural work such as extensions or re-roofing can reach six figures. Always get quotes for your specific property. The calculator lets you test any cost against the value you expect it to add.

Is this renovation calculator financial advice?

No. It provides estimates based on the figures you enter and ignores holding costs, finance, GST, and selling costs, as well as your personal circumstances. Confirm any renovation or investment decision with a licensed financial adviser, mortgage broker, or qualified builder.