Two homes listed at the same price, both with a Hendersonville mailing address and both on City of Hendersonville water, can come with different monthly costs that never show up on the listing. The difference comes from the city limits line and from one more question that's easy to skip during a showing: is the house on city sewer? Under the city's current rate schedule, an outside-city customer pays 115% of the inside rate for water and 150% for sewer. The water premium is set to disappear. The sewer premium has no end date.
That gap matters to more than a handful of households. In January 2023, the Times-News reported that about 70% of the city utility's more than 30,000 customers lived outside city limits. That's the latest count available, and it's more than three years old, but it shows that the outside-city rate is the one most of the system pays.
Two Rates Heading in Opposite Directions
In FY21, Hendersonville City Council adopted a plan to phase out the 150% inside/outside differential on water. The plan cuts it by five percentage points a year until both groups pay the same rate in FY30. The FY26 budget set the differential at 120%, and the FY27 adopted budget, approved June 24, 2026, lowered it to 115%. The same document says the differential "is currently applied only to water service. Wastewater service rates will maintain a 150% differential."
Here are the residential charges for a standard ¾-inch meter on the city's posted fee schedule:
| Charge, ¾-inch meter | Inside city limits | Outside city limits | Outside as share of inside |
|---|---|---|---|
| Water base charge | $12.55 | $14.43 | 115% |
| Water, first 3,000 gallons | $4.73 per 1,000 | $5.44 per 1,000 | 115% |
| Water, 3,000 to 6,000 gallons | $6.31 per 1,000 | $7.26 per 1,000 | 115% |
| Sewer base charge | $14.45 | $21.68 | 150% |
| Sewer, all usage | $8.91 per 1,000 | $13.37 per 1,000 | 150% |
| Sewer-only flat rate | $48.31 per month | $72.47 per month | 150% |
If the FY21 plan holds, the water column keeps shrinking toward a 100% match in FY30. The sewer column hasn't moved.
What the Gap Looks Like on One Bill
The table makes more sense when you run a household through it. Take a home on a ¾-inch meter that uses 5,000 gallons in a billing period, at the posted rates:
| Line item | Inside | Outside | Difference |
|---|---|---|---|
| Water base | $12.55 | $14.43 | $1.88 |
| Water, first 3,000 gallons | $14.19 | $16.32 | $2.13 |
| Water, next 2,000 gallons | $12.62 | $14.52 | $1.90 |
| Water subtotal | $39.36 | $45.27 | $5.91 |
| Sewer base | $14.45 | $21.68 | $7.23 |
| Sewer, 5,000 gallons | $44.55 | $66.85 | $22.30 |
| Sewer subtotal | $59.00 | $88.53 | $29.53 |
| Total | $98.36 | $133.80 | $35.44 |
Sewer makes up about $29.53 of the $35.44 gap, or roughly 83% of the outside-city premium on this bill. Because sewer is billed on every gallon of water that runs through the meter, the gap grows as usage grows. A larger household or a home on a bigger meter will see a wider spread than this example.
Why the Septic Question Settles Most of It
Now move that same outside-city house off city sewer. If it's on city water with a septic system, the only premium left in the example is the $5.91 on the water side. Under the city's schedule, that premium is scheduled to step down each year and reach zero in FY30.
So outside-city homes in the Hendersonville service area fall into two groups when it comes to utility cost. Homes on city water with septic carry a small premium that's on its way out. Homes on both city water and city sewer carry a premium that is mostly sewer and has no end date. A listing that just says "city water" doesn't tell you which group a house is in. The water bill and sewer line items from the seller's recent statements will.
A septic system brings its own costs and upkeep, and those belong in a separate conversation with an inspector. This post is only about the city bill.
Against the City Tax Bill
Living outside the line comes with a trade-off. Hendersonville's FY27 property tax rate is $0.52 per $100 of valuation, unchanged from the year before, and only homes inside city limits pay it. Henderson County's rate applies on both sides of the line. Commissioners raised it to 47.4 cents per $100 for FY27, up from 43.1 cents, so the county portion doesn't change the comparison.
On a home valued at $400,000, the city tax works out to $2,080 a year. The fee schedule lists water and sewer charges "per billing period" and doesn't say how long that period is. If you assume monthly billing, the $35.44 premium in the example adds up to about $425 a year. So in this example, an outside-city home on full city service saves more on city taxes than it pays in extra utility charges. The amount it gets to keep depends heavily on sewer, and that's the charge with a new state rule now attached to it.
The Sewer Differential Now Has a State Rule Beside It
The General Assembly ratified House Bill 376 on June 25, 2026, and the governor signed it into law as Session Law 2026-32 on July 2. It adds G.S. 162A-19.2 to state law, which says a local utility may charge outside customers more than inside customers. It also says that when the total outside charges, not counting tap and impact fees, run more than 25% above inside charges, the provider:
"shall hold a public hearing and explain how the rates, fees, and charges for customers outside its boundaries were determined."
The session law text says this section applies to rates established on or after the date it became law. Here's how the dates line up:
- June 24, 2026: Hendersonville adopts its FY27 budget, keeping outside-city sewer at 150%.
- July 2, 2026: S.L. 2026-32 becomes law, eight days later.
- Next budget cycle: the first time Hendersonville would set sewer rates with the new section in effect.
The law doesn't cap outside rates. It requires a hearing and an explanation when the premium passes 25%, and a 150% sewer rate is well past that line. The city hasn't said whether it plans to change the sewer differential. Anyone buying an outside-city home on city sewer this winter should base their numbers on today's 150% and treat any later change as unknown.
Getting on City Sewer From Outside the Line
For land or homes outside the city that aren't on sewer yet, the key document is older. Under the city's 2016 policy on sewer requests from outside-city properties, if service is feasible, the owner must file a voluntary annexation petition or the request doesn't go to Council. If staff doesn't recommend immediate annexation, Council can consider service only with a recordable agreement that allows voluntary annexation later. Council keeps the discretion to deny service even when those conditions are met. The policy is still listed on the city's water and sewer policy page.
The policy has been contested. In May 2025, the Hendersonville Lightning described a dispute between the city and county over whether the city could require developments outside its limits to petition for annexation in order to get city sewer, as Senate Bill 69 moved forward in the legislature. The legislature's record for S69 lists its latest action as a conference committee appointed on August 6, 2026, and doesn't show it becoming law.
One area is set up differently. In June 2026, the Lightning reported the City Manager's description of early talks with the county about accepting wastewater from the Etowah system. Because Etowah sits outside the city's annexation authority and growth boundary, annexation would be neither required nor permitted there. By July, according to later Lightning coverage, Council had unanimously agreed to explore the idea while county leaders were still weighing options and costs.
All of this runs through a treatment plant that's about to grow. On September 22, 2026, the city announced $72 million in grants and low-interest loans for flood mitigation and expansion at its wastewater facility, which was out of service for almost two weeks after Helene. The project will raise capacity from 4.8 to 6.0 million gallons per day. The Times-News reported that the project is expected to cost at least $100 million.
Frequently Asked Questions
Does every outside-city home pay the 150% sewer rate? Only homes connected to city sewer. An outside-city home with septic pays the water premium alone, which is 115% for FY27 and scheduled to reach parity in FY30.
Will the new state law lower Hendersonville's outside sewer rate? The law requires a public hearing and an explanation when outside charges run more than 25% above inside charges. It doesn't set a cap, and it applies to rates established on or after July 2, 2026.
Where can I check a specific home's charges? The seller's recent utility statements show the meter size and whether sewer appears as a line item. The city's fee schedule lists the current inside and outside rates.
This post is general information about posted rates and state law, not legal, tax or financial advice. Please confirm your own property's situation with the City of Hendersonville utility office or a qualified professional.
If you're comparing homes on both sides of the city line, the Mary Sitton Team can help you collect the utility statements, meter details and service records that turn a listing price into a true monthly cost before you write an offer. If you're selling an outside-city home, that same paperwork lets a buyer see your actual costs up front, and it starts with a home valuation.
