I recently came across a case where someone looking to rent out a single-family home in Burke was overly optimistic about their rental income based solely on rental prices, neglecting to account for property taxes and insurance costs.

Such situations are not uncommon in the current market.

In Burke's rental market, as of August 2026, the median rent is $3,400, which is an 8% increase from a year ago (Zumper).

At the same time, the median home value is around $627,955 (Ownwell, as of April 13), and the effective property tax rate is 1.16%, resulting in an annual tax of about $7,250.

The total return rate, calculated by dividing the annual rental income of $40,800 by the purchase price, is 6.50%.

While this number seems decent within Fairfax County, the issue lies in the fact that it does not account for property taxes and insurance.

If we apply the 50% rule for operating expenses, assuming they are half of the rental income, the net operating income would be $24,000 annually, and the cap rate would drop to 3.25%. It's important to note that the property tax of $7,250 already takes up a significant portion of this. Adding landlord insurance could further reduce the net operating income, making the actual return rate noticeably lower than what it appears when only considering rental prices.

If financing is involved, with a 25% down payment and closing costs, the actual investment amount would be around $176,000, borrowing the rest at an interest rate in the 7% range. The annual repayment amount would exceed the net operating income, resulting in a negative cash-on-cash return. While Burke has a steady demand for single-family home rentals within the Washington DC commuting area, the high purchase price increases the initial cash flow burden as leverage is used.

Just because the effective property tax rate is around 1% doesn't mean the burden is light. In areas like Burke, where the purchase price exceeds $600,000, property taxes can take up a significant portion of annual rental income, so it's crucial to factor in property taxes and insurance first when calculating net operating income. Virginia's property tax relief structure is designed differently than Texas, so families coming from other states should verify their actual tax bills through the county tax office.

Burke is also a popular area for Korean families who choose to live there for the school district. An approach that considers both actual residence and long-term holding, rather than pure rental investment, may be more suitable in this area with lower cap rates. For school ratings, refer to GreatSchools or Virginia's Department of Education resources, but be sure to check the assigned school directly before purchasing.

Recent market trends show that neighborhoods like Burke, which are primarily composed of single-family homes, can experience larger rental price increases compared to apartment-centric areas. The 8% increase in median rent over the past year can be viewed in this context. However, it's important to note that just because rents are rising doesn't mean cap rates will also increase; if the pace of purchase price increases is faster, cap rates could actually decrease.

From a total return perspective, even if cash-on-cash returns are negative, the principal repayment and appreciation can lead to different outcomes in the long run. However, this calculation is based on the assumption of price appreciation, so it's essential to first confirm whether the current net operating income is manageable.

Burke has a high proportion of single-family homes with quiet residential environments and spacious yards, which tend to retain family tenants for longer periods. The infrequent turnover of rentals reduces vacancy risk, but the high purchase prices mean that lower cap rates are a trade-off that must be accepted.

This case illustrates that failing to include property taxes and insurance in the initial calculations makes it difficult to understand this structure properly. In neighborhoods like Burke, it's safer to not only observe the rising rental prices but also to first obtain property tax bills and insurance estimates before calculating net operating income.