Property investment calculators


Make smarter property investment decisions with the right numbers behind you. Our free property investment calculators and tools can help you assess rental yield and ROI, estimate renovation costs and understand Healthy Homes requirements. Whether you're considering your first rental or reviewing an existing portfolio, start here to find, calculate and invest with confidence.  


Tools and Calculators

Lets crunch the numbers

Planning a renovation or property upgrade?

Renovation calculator

Estimate renovation costs room by room and see how upgrades could improve your rental or investment property’s market value, appeal and potential rental yield.

Does your rental meet the Healthy Homes Standards?

Healthy Homes Check

Check how your rental measures up against New Zealand’s Healthy Homes Standards and identify potential gaps across heating, insulation, ventilation, moisture and draught stopping.

How is your rental property really performing?

Rental yield and ROI calculator

Calculate your rental property’s estimated gross and net yield, expenses and projected cashflow, and see how changes to rent, interest rates or fees could affect your return.

Own a commercial investment property?

Commercial property ROI calculator

Calculate your commercial property’s estimated gross and net yield, expenses and projected cashflow, factoring in lease outgoings for a clearer picture of your investment’s performance.

Find your next investment property

Looking for your next rental or investment property?

With Property Brokers teams throughout regional New Zealand, you’ll have local property knowledge backed by the strength of our nationwide team.

Whether you’re buying your first rental, adding to your portfolio or weighing up your next investment, we can help you understand the local market and find opportunities that fit your goals.




Property investment news and advice

Stay informed with the latest property investment news, rental market insights, landlord advice and property management updates from our team.

From changes affecting New Zealand landlords to regional rental market trends and practical advice for getting more from your investment, our experts help you stay one step ahead.

Commercial property news

Stay across commercial property trends, market insights and opportunities to help you make informed investment decisions.

Rental property news

Get the latest rental market insights, landlord advice and property management updates to help you get more from your investment.

Property management e-guides

Practical advice and insights to help you manage your rental property, understand your responsibilities and make informed investment decisions.

Property investment e-guides

Practical advice and insights to understand the property market, assess opportunities and make informed investment decisions.