Comparing property metrics: yield, cash flow and equity
“This property returns four percent” is incomplete without further explanation. It could mean gross rental yield, a current return on equity or an overall result including an assumed sale price. Separating these layers helps reveal where an investment’s economic result is expected to come from.
At a glance
- Calculate property performance and financing separately at first.
- Principal repayment uses cash while reducing debt.
- Total returns require a time horizon and explicit sale assumptions.
Assess the property first
Gross rental yield compares annual rent excluding service charges with the purchase price. Net rental yield deducts owner costs and defined allowances, while acquisition costs are added to the investment basis. Here, both figures are before financing and income tax. This allows the same apartment to be assessed independently of whether a buyer uses substantial equity or a large loan.
One property, several valid figures
Our example has a purchase price of €240,000, acquisition costs of €24,000 and annual rent excluding service charges of €10,800. After owner costs and planned allowances, €8,256 remains before financing. A €192,000 loan starts at 3.8% interest and 2% initial principal repayment. Equity invested is €72,000, including acquisition costs.
| Metric | Calculation |
|---|---|
| Gross rental yield | 10,800 ÷ 240,000 = 4.50% |
| Net rental yield | 8,256 ÷ 264,000 ≈ 3.13% |
| Monthly planned cash flow | (8,256 − 11,136) ÷ 12 = −€240 |
| Current surplus after initial interest | 8,256 − 7,296 = €960 per year |
Define return on equity precisely
The €960 equals approximately 1.33% of invested equity. This simplified current measure uses the initial annual interest amount, includes planned costs and excludes value changes and tax. The actual interest component of a loan repaid monthly already changes during its first year. An exact annual calculation therefore requires the amortization schedule.
A cash distribution measure instead divides cash flow after the full loan payment by equity: minus 4% here. Principal repayment explains the difference. It is a payment to the bank that reduces the outstanding debt, rather than an operating expense of the building. Both perspectives are useful when clearly labelled.
Calculate the entire period for total return
A total return combines ongoing cash flows with net proceeds at the end of the holding period. It needs an assumed sale price, selling costs, remaining debt and any applicable tax. Additional equity contributions during ownership must remain visible. A dated cash-flow calculation, such as an internal rate of return, also reflects when each payment occurs.
Do not count principal repayment twice as a return: if remaining debt has already been deducted from sale proceeds, the reduction is already captured. A higher market value is also not cash available to spend. Alongside appreciation, calculate an unchanged or lower sale price.
Check financing effects alongside affordability
More debt reduces the equity required and can amplify percentage results in either direction. It does not improve the rent or the building’s condition. Check property economics first, monthly financing needs second, and long-term wealth development third. Market indicators such as the Bundesbank’s provide context, but cannot replace a property-specific calculation.
Sources & further information
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We can put an offer’s metrics side by side so that their calculation basis and limitations are clear.