Investment analysis is the discipline that separates property investment from property speculation. Investors who buy based on intuition, developer presentations, or the expectation that the market will always go up are speculating, not investing. Investors who run the numbers, who can clearly state what yield a property must generate to justify the price, what risks could prevent that yield from materializing, and what their return looks like under realistic rather than optimistic assumptions are investing. This guide covers the core analytical tools that make that distinction.

Gross rental yield is the starting point for income-property analysis. It expresses annual rental income as a percentage of the property’s purchase price.

Formula: Gross Rental Yield = (Annual Rent ÷ Purchase Price) × 100

For example, a property purchased at PHP 5,000,000 that achieves PHP 25,000 per month in rent generates PHP 300,000 annually, giving a gross yield of 6 percent. This number is useful for quick comparisons between properties but should never be used as a final investment metric — it overstates actual returns by excluding all costs.

Net rental yield accounts for the actual costs of owning and operating the property. This is the metric that matters for investment decision-making.

Formula: Net Rental Yield = ((Annual Rent − Annual Costs) ÷ Purchase Price) × 100

Annual costs typically include real property tax, association dues, insurance, estimated vacancy (commonly modeled as one to two months of rent per year), and property management fees if applicable. For a condominium unit in Metro Manila, these costs can reduce a 6 percent gross yield to a net yield of 3 to 4 percent — a materially different investment. Always run net yield, not gross yield, before making a purchase decision.

Total ROI captures both income and appreciation over the holding period, expressed as a percentage of the initial investment.

Formula: Total ROI = ((Total Income Received + Appreciation Gain − Total Costs) ÷ Total Acquisition Cost) × 100

Total acquisition cost includes the purchase price plus transaction costs — Capital Gains Tax (paid by seller but factored into negotiations), Documentary Stamp Tax, Transfer Tax, Registry of Deeds fees, and any immediate improvement costs. A property analyzed on purchase price alone, without accounting for total acquisition cost, will show an inflated ROI.

Appreciation gain is the hardest input to estimate reliably. The appropriate approach is to model conservative, moderate, and optimistic appreciation scenarios rather than a single point estimate, and to assess whether the investment is acceptable even under the conservative scenario.

Vacancy risk is the risk that the property will not be rented, or will be rented at below-market rates. It is highest for properties in locations with oversupply, poor access, or weak employment demand. Model vacancy conservatively — a realistic vacancy assumption of one to two months per year is standard for most Metro Manila locations; more in weaker markets.

Oversupply risk is specific to the Philippine condominium market. Several Metro Manila submarkets have experienced significant supply increases that have suppressed both rental rates and resale prices. Before acquiring any condo unit, assess the current and pipeline supply in the specific building and submarket.

Developer risk applies to pre-selling transactions. A developer who fails to complete a project on time — or at all — creates a significant loss scenario for investors who have committed payments. Assess developer track record, DHSUD compliance, and financial standing before committing to any pre-selling unit.

Illiquidity risk is the risk of being unable to exit the investment when needed. Philippine property transactions take months, and resale in certain markets is thin. An investor who needs to liquidate quickly may need to accept a significant discount. Factor this into your holding period assumptions.

Regulatory and legal risk covers title defects, encumbrances, and ownership disputes that can impair the property’s value or transferability. This is addressed through rigorous due diligence before acquisition, not after.