The starting point
Use cap rate to understand income relative to price, then separately model financing, reserves and project costs. Neither number predicts a guaranteed return.
Define the income and the price being compared
A cap rate relates annual net operating income to a property’s price or value. In this example, cap rate equals NOI divided by purchase price. Ask whether the stated NOI reflects historical operations, annualized current operations or a stabilized projection. The Federal Reserve’s valuation guidance explains that direct capitalization relies on the income and rate assumptions being appropriate to the property. A projection built on future work and future rents should not be treated as cash already being earned.
- Use the same income period and expense definitions when comparing properties.
- Identify whether the denominator is an asking price, a closed sale price or an estimated value.
Further reading: Federal Reserve: Valuation concepts for income-producing real estate, Appendix 3
Separate operating performance from financing
Here, NOI means income after operating expenses, before debt service, capital expenditures and income taxes. Cash available to the owner requires additional deductions. Lender calculations may use different definitions or deduct replacement reserves before other measures, so label each worksheet line. Fannie Mae’s operations definitions separately identify NOI, replacement reserves, net cash flow and debt service. Do not compare two published yields without checking what each author included.
- Include realistic management and upkeep assumptions even if you expect to do some work yourself.
- Review property tax, insurance and utility assumptions for the proposed ownership, not only the seller’s history.
Further reading: Fannie Mae: Multifamily Analysis of Operations definitions (PDF)
Work through a hypothetical example
Assume a purchase price of $2,000,000 and annual NOI of $100,000. The cap rate is 5%. If annual debt service is $72,000 and the owner sets aside $10,000 for capital reserves, the remaining modeled cash is $18,000 before income taxes and any additional capital spending. With $600,000 of initial cash invested, that equals a 3% modeled cash-on-cash return. These figures illustrate arithmetic, not a listing, financing quote or San Diego market benchmark.
| Item | Assumption or result |
|---|---|
| Purchase price | $2,000,000 |
| Net operating income | $100,000 |
| Cap rate: NOI ÷ purchase price | 5.0% |
| Annual debt service | −$72,000 |
| Annual capital reserve allowance | −$10,000 |
| Modeled cash before income taxes | $18,000 |
| Initial cash invested | $600,000 |
| Modeled cash-on-cash return | 3.0% |
Count all of the initial cash and test a weaker year
For the example, initial cash comprises a $500,000 down payment, $40,000 in acquisition costs and $60,000 of initial work. Keep actual quotes and funding requirements separate from these illustrative amounts. If annual NOI falls by $15,000 while debt service and the reserve allowance stay the same, modeled cash falls from $18,000 to $3,000. A cap rate alone does not show that financing sensitivity. A major unplanned repair could reduce available cash further.
Use the model to ask better questions
Build separate scenarios for present operations, proposed improvements and a less favorable outcome. Identify what must happen for each rent, occupancy, expense and timeline assumption to hold. Confirm loan terms with a lender and project costs with qualified providers. Compare properties using consistent definitions, then consider execution risk, liquidity needs and your objectives. Cornelius Estates can help organize the acquisition analysis; financing, legal and tax conclusions require the appropriate advisers.