Property Investment Basics: Look Beyond the Asking Price

A property can look attractive on paper and still deliver disappointing results if the rent is overestimated or the running costs are underestimated. Before buying a rental property, assess how it is likely to perform under realistic assumptions—not just the best-case scenario.

Start with achievable rental income

Look at comparable rentals in the same area and of a similar type, size and condition. Asking rents are useful evidence, but they do not guarantee what a tenant will pay or how quickly a property will let. Consider the likely tenant profile, access to transport and amenities, security, parking and the features that matter to renters in that market.

Calculate a simple gross rental yield

A basic comparison is annual rental income divided by the purchase price, multiplied by 100. For example, if a property costs R1,200,000 and the achievable rent is R10,000 per month, the annual rent is R120,000 and the gross yield is 10%.

This is only a starting point. Gross yield does not subtract costs, account for vacancies, include the full cost of acquisition or tell you whether the investment will generate positive cash flow after finance.

Build a realistic expense list

Depending on the property, expenses may include municipal rates and charges, sectional-title levies, insurance, routine maintenance, repairs, letting or management fees, compliance work and accounting or tax costs. Also allow for periods when the property is empty, tenants pay late, or unexpected repairs are needed.

Stress-test the numbers

Prepare a conservative scenario: What happens if rent is lower than expected, the property is vacant for a month, levies rise or a major repair is needed? If you are borrowing, check whether the investment remains affordable if interest costs change or your personal income is interrupted. Do not assume that future capital growth will cover a weak monthly cash flow.

Investigate the building and the area

For sectional title, review the levy history, financial statements, reserve fund, rules, insurance and known maintenance plans. For any property, look into the condition of the building, municipal services, access, security, local rental competition and any restrictions that could affect how it may be used. Verify important claims with documents rather than relying on verbal assurances.

Understand your responsibilities as a landlord

Landlords need to budget time and money for maintenance, tenant communication, lease administration and legal obligations. If you use a managing agent, understand the fee structure and exactly what the service includes. Tax treatment depends on your circumstances, so speak to a qualified tax practitioner before making assumptions about after-tax returns.

Compare the investment with alternatives

Property is relatively illiquid and involves transaction costs, concentrated risk and ongoing management. Compare the expected return with the effort, capital tied up and risks involved. The right decision depends on your objectives, finances, time horizon and ability to handle setbacks.

The takeaway: use conservative rental assumptions, count the full costs, inspect the property and stress-test the cash flow before making an offer. This is general educational information, not investment or tax advice.