In the past, comparing just a couple of listings in San Jose would give a good sense of rental yields, but now, due to significant differences in rent based on the number of bedrooms and building types, we need to calculate each one separately. Recently, I had the experience of calculating total yields and cap rates side by side for several listings, and I'd like to share that process.

According to Zumper, as of August 2026, the average rent in San Jose is $3,380, which is a 10.2 percent increase from a year ago. By property type, single-family home rents are $4,495, while apartments are at $3,211, showing a considerable difference. Zillow reported the average home value for the same year in June as $1,413,804, which is a 1.8 percent decrease from the previous year, while Redfin reported the median sale price at $1,500,000 during the same period.

In terms of bedroom size, studios are at $2,200, 1-bedroom units are $2,770, and 2-bedroom units are around $3,590. In San Jose, rent tends to increase by about $500 for each additional bedroom, so even slight adjustments in unit size can change the yield calculations.

Property tax is generally 1 percent of the purchase price based on California Prop 13, but when you add local bonds and special assessments within Santa Clara County, the actual burden often rises to between 1.1 and 1.3 percent. Since the assessment items vary by county, it's safer to check the actual tax bill before purchasing.

When comparing listings, there are three main factors to consider:

• Total yield - calculated by dividing annual total rent by the purchase price, which serves as a starting point for comparison but has the limitation of not reflecting costs.
• Cap rate - calculated based on net operating income after deducting property tax, insurance, management fees, maintenance costs, and vacancy losses, making it closer to actual profitability.
• Cash-on-cash return - a metric that shows actual cash flow relative to the down payment when using financing, which can vary based on loan conditions even for the same property.

For example, applying an apartment rent of $3,211 to a purchase price of $1,410,000 results in an annual total rent of $38,532, giving a total yield of about 2.7 percent. If we apply a single-family home rent of $4,495 under the same conditions, the annual total rent rises to $53,940, resulting in a total yield of 3.8 percent. Just changing the property type can lead to such a significant difference, so relying solely on total yield when selecting properties can lead to missed opportunities.

Assuming operating costs at half the 50 percent rule, the net operating income for a single-family home would be around $26,970 annually, and the cap rate would drop to about 1.9 percent. Additionally, if management fees are outsourced, 8 to 12 percent of the rent will be deducted, which also needs to be factored in.

According to the 1 percent rule, 1 percent of the purchase price of $1,410,000 is $14,100, which is significantly lower than both the apartment rent of $3,211 and the single-family home rent of $4,495. In a market like San Jose, where the purchase price itself is high, many investors tend to rely more on long-term capital gains rather than cash flow. To calculate cash-on-cash return, you need to check the loan conditions for each property again, as even with the same cap rate, differences in interest rates and loan ratios can lead to significant variations in returns relative to actual cash invested. Additionally, vacancy issues come into play. In a market like San Jose, where rents are steadily rising, it's difficult to avoid gaps during tenant turnover, so it's realistic to deduct about one month's rent from the annual total rent in calculations.

From a total yield perspective, it's important to consider both capital gains and asset increases due to loan principal repayment. However, in the San Jose market, where home values have slightly decreased over the past year, it's wise to be cautious when calculating based on short-term price increases. If you are interested in school districts that Korean families focus on, please double-check the GreatSchools ratings and assignment boundaries before purchasing.

This article is not investment or legal advice, and it is recommended to consult with a professional before making any actual contracts.