Let's follow a couple who moved from the southern region through their first winter. After recently relocating to Annandale, they were surprised by the quickly rising electricity bills as they started using a heat pump for heating. When they lived in the South, they only had to worry about cooling costs, but moving to the Washington DC area introduced the new variable of heating expenses.

The average electricity bill in Fairfax County, where Annandale is located, is $197 per month, with a rate of 13 cents per kilowatt-hour (according to EnergySage data, as of August 2026). For households like this couple that primarily use heat pumps or electric heating in winter, it's good to know that winter bills can actually be higher than summer bills.

The next thing the couple checked was the difference in maintenance costs based on housing type. Single-family homes tend to have larger heating and cooling areas, and older homes often have poorer insulation, leading to significant variations in heating costs. In contrast, townhomes or condos share walls with neighboring units, which can reduce heat loss under similar conditions, often resulting in lower heating costs. Additionally, exterior wall and roof maintenance is usually included in HOA fees. However, this investigation did not confirm specific average HOA amounts for the city of Annandale or provide a comparison of median prices between single-family homes and condos, so it's important to check individual listings for this information.

Property taxes are another aspect to consider. The property tax rate in Fairfax County for 2026 is $1.12 per $100 of assessed value (according to Fairfax County data). Additionally, there is a tax relief program for residents aged 65 and older or those with disabilities, where households with a combined income of $60,000 or less can receive a 100% exemption, those with incomes between $60,001 and $70,000 can receive a 75% exemption, those with incomes between $70,001 and $80,000 can receive a 50% exemption, and those with incomes between $80,001 and $90,000 can receive a 25% exemption. There is also a condition that net worth, including a spouse, must not exceed $400,000 (according to Fairfax County Tax Office data).

Ultimately, the couple is weighing whether to improve the insulation of their current home or move to a townhome that requires less maintenance, prompted by the shock of their first winter heating costs. However, it's worth noting that the tax relief program in Fairfax County can be applied for regardless of housing type, as long as income and asset criteria are met, so it's beneficial to check this before making a decision to move.

Unlike areas like Texas, where property taxes replace income taxes, Virginia has a structure that collects both state income tax and property tax. Therefore, if moving from the South or a no-income-tax state, it's more accurate to compare the total cost of living, including income tax, property tax, and heating and cooling costs, rather than just looking at the sale price.

The last thing the couple checked was the application process for tax relief. Fairfax County requires new applications each year, so it's important to note that approval does not carry over indefinitely; if income or asset situations change, they must be re-evaluated. Areas close to Washington DC, like Annandale, offer great convenience but also come with the hassle of keeping up with these administrative procedures annually. When preparing application documents, having proof of income and asset details organized in advance can make the renewal process much smoother for the following year.

• Single-family home - larger heating area, significant cost variation based on insulation, full maintenance responsibility
• Townhome - less heat loss due to shared walls, exterior and roof maintenance included in HOA
• Condo - most maintenance included, often no stairs

The market prices and tax rates mentioned in this article are based on the time of verification, and actual tax relief applications may vary based on individual income and asset situations. This is not investment or legal advice, and it is recommended to consult with a professional before making any applications or contracts.