What does it really cost each year to own a large custom home or acreage property in El Paso County?

There's no single number. The yearly cost of a large custom home or acreage property depends on that specific home, so the useful approach is to build the estimate during your search and inspection period: property taxes, insurance, utilities, and any metro district or HOA fees, plus the costs that come with land, such as well and septic upkeep, propane, snow removal, and grounds care. I recommend setting aside money every year for the home's systems, so maintenance doesn't turn into one large bill, or a price discount, when you sell.

Why there's no single number

Two homes at the same price can cost very different amounts to own. One may be on city water and sewer with a small yard; another may have five acres, a well, a septic system, propane heat, a long private driveway, and an outbuilding. The age of the home, its systems, and how it's been maintained matter as much as its size. That's why the estimate has to be built from the home in front of you.

Start with how you'll care for it

Before the numbers, it helps to be honest about the work:

• Can you take care of the grounds yourself, physically and with the time you have? Mowing, trimming, snow removal, fencing, and wildfire mitigation on acreage add up.
• If not, what will you outsource, and what will it cost? Get quotes for the services you'd actually use.
• Will that change over time? What's easy today may not be in 10 years.

The costs to add up for a specific home

Taxes, districts, and HOA

Property taxes, any metro district mill levy, and HOA dues can vary widely between homes at similar prices. Check each one by address. (See why similarly priced homes can have very different property taxes, what a metro district is, and what to review before buying in an HOA.)

Insurance

Insurance on a larger home, especially on wooded acreage or in a wildfire-prone area, can be one of the biggest yearly costs. Since July 1, 2026, Colorado insurers that use wildfire risk models have to give applicants their wildfire risk score and explain it. Get a quote during your inspection period. (See why homeowners insurance varies so much.)

Utilities

• Electric and gas: ask the seller for the past 12 months of bills. A larger home with several heating and cooling systems can cost much more to run than its square footage suggests.
• Propane: common in rural parts of the county, including areas like Black Forest. Ask whether the tank is owned or leased, who supplies it, and how much was delivered over the past year.
• Solar panels: ask whether they're owned or leased. If leased, find out the payment, the remaining term, and whether the lease transfers to you. Ask for production and electric bill history.

Water and wastewater

• A private well: the Colorado Department of Public Health and Environment recommends testing well water at least once a year. Pumps, pressure tanks, and any treatment system also need upkeep and eventual replacement.
• A septic system: the EPA recommends having a household septic system inspected at least every three years, with the tank typically pumped every three to five years. Systems with pumps or other mechanical parts usually need inspection more often.

(See buying a home with a well or septic system in El Paso County.)

Land and access

• Grounds: mowing, irrigation, tree care, fencing, and ongoing wildfire mitigation around the home.
• Snow removal: a long driveway can mean a plow, a service contract, or both.
• Private roads: many roads in unincorporated El Paso County are privately owned and maintained, and the county doesn't maintain them. Before you buy, find out whether the road to the property is county-maintained and whether there's a road maintenance agreement, and what it costs.
• Outbuildings and animals: barns, arenas, shops, and guesthouses have their own upkeep. (See what you can do on an acreage property.)

Set aside money for the systems every year

The age of the home and its systems tells you a lot. Every system has recommended annual maintenance and an expected life. I recommend listing each one, noting its age and condition from the inspection, and setting money aside every year so you're planning for replacements instead of reacting to them.

The last thing you want is to own a home for years without investing in it along the way. If maintenance is put off, it tends to come due all at once, usually when you're getting ready to sell. At that point, you either pay a large bill or discount the price to account for the work a buyer will see. (See what to repair before selling.)

How I help you estimate it

What could change the answer

• The age and condition of the systems: newer systems mean lower near-term costs; older ones mean a bigger reserve.
• How much you do yourself: hiring out grounds care and snow removal changes the yearly total.
• Insurance and wildfire risk: premiums can change at renewal, and mitigation can affect them.
• Energy prices: propane and electric costs move with the market.
• How long you plan to stay: a longer stay means planning for more replacements.

When to talk with a professional

Licensed inspectors and specialists can evaluate the well, septic system, roof, and heating and cooling systems during your inspection period. An insurance agent can quote the specific home. For questions about road maintenance or what's allowed on the land, check with El Paso County, and talk with a real estate attorney if a road agreement or easement is unclear.

Sources

• Colorado Department of Public Health and Environment, Environmental Public Health Tracking, "Private well water and your health": https://coepht.colorado.gov/index.php/well-water-and-health
• U.S. Environmental Protection Agency, "How to Care for Your Septic System": https://www.epa.gov/septic/how-care-your-septic-system
• KRDO, "Midway resident demands better roads from El Paso County" (county public works director on privately owned and maintained roads), November 12, 2019: https://krdo.com/news/top-stories/2019/11/12/midway-resident-demands-better-roads-from-el-paso-county/
• Colorado General Assembly, HB25-1182, Risk Model Use in Property Insurance Policies: https://leg.colorado.gov/bills/HB25-1182