Illustrative ROI, cash-flow and rental analysisEditorial contact
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Investment calculator

Calculate an illustrative ROI and cash flow

Use this calculator to test how purchase price, financing, rental income, occupancy and operating costs may affect a spa-apartment investment.

The results are estimates, not a promise of profit, a valuation, tax advice or investment advice.

Interactive tool

Spa apartment ROI calculator

Change any assumption. Results update immediately.

Purchase

Financing

Rental assumptions

Annual fixed costs

How to interpret results

Cap rate and cash ROI are different

Net cap rate measures annual operating profit against the total investment cost before loan repayment. Cash ROI measures annual cash flow after loan payments against your own cash contribution.

Net cap rate = annual operating profit ÷ total entry cost
Cash ROI = annual cash flow after debt ÷ own cash
Use a conservative case

Test the downside, not only the best case

Try lower occupancy, a lower daily rate, higher management fees and a larger maintenance reserve. A useful model should remain understandable even when conditions become less favourable.

Before purchase, verify the agreement, legal status, taxation, owner-use rules and all recurring charges independently.

Important disclaimer

This calculator provides illustrative estimates only. It does not account for every legal, tax, financing or property-specific factor. It is not investment, legal or tax advice, and it does not guarantee income, occupancy, price growth or future profitability.

FAQ

Questions about ROI and investment apartments

What is ROI?

ROI is a return measure. In this calculator, cash ROI compares annual cash flow after loan payments with the owner’s contributed cash.

What is a cap rate?

Cap rate compares annual operating profit with total entry cost before financing. It helps compare the operating performance of properties.

Why calculate break-even?

It shows the minimum occupancy or daily rate needed to cover fixed costs, variable fees and loan payments under the selected assumptions.

Investment analysis

Compare locations and rental models

Read the guide on spa and seaside apartments before using a calculator result as part of a purchase decision.

Open investment analysis

Editorial contact

Report a correction

Contact the editorial team if you find an error or want to suggest a topic for analysis.

niedzwiedziu85@gmail.com