In New Hanover, Pender, Onslow, and Brunswick counties, a lush green lawn is the hallmark of coastal curb appeal. However, keeping that grass green during a sweltering July in Hampstead or Leland often comes with a painful surprise: a utility bill that looks more like a mortgage payment.
For buyers and investors, understanding the local "water math" is a critical part of due diligence. In our region, the cost of water isn't just about the water—it's about the sewer. Here is how savvy locals are using smart tech and strategic metering to slash their bills by up to 50%.
The "Hidden" Sewer Tax on Your Sprinklers
Most homeowners in Wilmington and Jacksonville don't realize that for every gallon of water they spray on their lawn, they are typically charged for a gallon of sewer processing, even though that water never touches a drain.
The Problem: In many districts, sewer rates are actually higher than water rates. If you water your lawn using your main house meter, you are paying a premium to "treat" water that is simply soaking into the ground.
The Insider Solution: Install a Split Irrigation Meter.
ONWASA (Onslow): While they charge a 50% surcharge on the water rate for irrigation meters, you pay $0 in sewer fees. Since the sewer rate is often nearly double the water rate, this "penalty" is actually a massive discount.
CFPUA (New Hanover): A separate irrigation meter removes the sewer charge entirely. While there is an upfront installation cost (often ~$500-$1,000+ depending on the municipality), the ROI for a property with a large lawn or irrigation system is often less than two summers.
Myth vs. Reality: Watering in Zone 8a
Myth: "I need to water my lawn for 15 minutes every morning to beat the heat."
Reality: This creates "lazy" shallow roots that burn quickly in August. In our sandy coastal soils, the strategy is deep and infrequent. Watering heavily (1 inch) just once or twice a week forces roots to dig deep for moisture, creating a drought-resistant turf that survives when county restrictions hit.
The "Smart" Upgrade: WiFi Controllers
If you are managing a vacation rental in Surf City or Oak Island from afar, a "dumb" timer is a liability. It will happily water your lawn during a hurricane.
Upgrading to a smart controller (like Rachio or Rain Bird with WiFi) is a game-changer for coastal properties:
Rain Skip: These systems sync with local weather stations. If a summer thunderstorm dumps 2 inches of rain on Topsail Beach, your sprinklers automatically skip the next cycle, saving you money and preventing fungus growth from over-saturation.
Wind Skip: In gusty coastal areas, spraying water during high winds is wasteful (it just blows onto your driveway). Smart sensors can delay watering until the wind dies down.
Your Next Step
Whether you are evaluating the ROI of an irrigation well in Porters Neck or trying to lower the overhead on your investment portfolio in Sneads Ferry, utility logistics are a major factor in your bottom line. You need a partner who understands that a "dream home" also needs to make financial sense on a monthly basis.
We are experts in listening and communicating people's wants into homes that work for them—and that includes navigating the hidden costs of ownership like water and sewer structures. Let Aspyre Realty Group help you find a property that is efficient, resilient, and ready for the coastal lifestyle.





