What to Ask About Water Service Before Buying in Cave Creek

Before you make an offer in Cave Creek, confirm in writing which water system actually serves the address, because a 85331 mailing address does not tell you whether a property sits inside Town limits, and the Town of Cave Creek states that water service is provided to most, not all, residences and businesses in the Town. The Town's primary source of drinking water is the Colorado River, accessed through the Central Arizona Project. If you are uncertain whether a residence is connected to the Town's water system, the Town instructs you to contact its Utility Department at 480-488-6620.

In a market moving at that pace, you do not have unlimited time to sort out a water question after you are already in escrow.

What "water service" means for a Cave Creek property

Water service is the answer to a simple question: who delivers drinking water to this specific parcel, and from what source. In the Cave Creek area there are several possible answers. The Town of Cave Creek provides water service to most, not all, residences and businesses in the Town. The Town also owns and manages the separate Desert Hills Water System, which supplies drinking water to portions of unincorporated Maricopa County. Some properties draw from a private well, and well permits in the Cave Creek area are issued by the Arizona Department of Water Resources. Some properties in unincorporated areas of the region have historically relied on hauled water. In nearby Rio Verde Foothills, an unincorporated community north of Scottsdale, homeowners had private wells or water delivered by trucks, with no traditional piped delivery system like nearby incorporated towns.

Sewer is a separate question with a separate answer. The Town of Cave Creek provides sewer service only to residences and businesses in the core portion of the Town, and asks residents unsure about sewer connection to call the utility department at 480-488-6620.

A Cave Creek mailing address does not establish Town of Cave Creek water service

The Town of Cave Creek states plainly that the postal jurisdictional boundaries are different than the Town's boundaries. Properties with the 85331 zip code can be located within the Town of Cave Creek, the Town of Carefree, the City of Phoenix, the City of Scottsdale, or unincorporated Maricopa County.

To determine whether a property is physically located within the Town of Cave Creek, the Town directs people to the Town of Cave Creek zoning map contained within the zoning ordinance, or a Phoenix Metro Area street atlas. That is the authoritative check, and it takes minutes.

The same boundary ambiguity shows up in market data. Tatum Ranch and Dove Valley Ranch are identified with Phoenix in some directory paths while recent-sales records include Cave Creek, Arizona 85331 addresses. For the three months ending March 2026, the median sale price in the Cave Creek-addressed portion of Tatum Ranch was $620,000, down 8.8% year over year, meaning compared with the same period a year earlier, with 67 median days on market and a 97.1% sale-to-list ratio. For the Cave Creek-addressed portion of Dove Valley Ranch over the same three months ending March 2026, the median sale price was $542,500, down 1.5%, with 34 median days on market and a 97.7% sale-to-list ratio. Those numbers are useful. They are not a statement about which municipality, or which water utility, serves any particular home in either area.

Whether the Town will serve a property that is not already connected

A "Will Serve" is the request current property owners use to confirm the Town will commit to serving water to a specific property that is not already connected to Town of Cave Creek water. Under the Cave Creek Water Policy approved by Town Council on December 20, 2021, no new water service will be established outside Town boundaries unless required by existing valid contractual or statutory obligations. The Town is no longer accepting requests for Will Serves outside the Town of Cave Creek.

That single policy is why the boundary question and the water question are the same question. If a property you are considering is outside Town boundaries and not already connected, a future Town connection is not something to plan around.

The questions to put to the seller's agent in writing

Ask these before you write an offer, and ask for the answers in writing:

• Which water system serves this address, and is the property already physically connected to it? The Town of Cave Creek provides service to most, not all, residences and businesses in the Town.
• Is the property inside Town of Cave Creek limits, confirmed against the Town of Cave Creek zoning map contained in the zoning ordinance?
• If the property is served by the Desert Hills Water System, which the Town's Utilities Department owns and manages for portions of unincorporated Maricopa County, say so explicitly.
• Is the property on a private well, and is the well shared? Well permits in the Cave Creek area are issued by the Arizona Department of Water Resources, and the ADWR well registry is searchable online at wellregistry.azwater.gov.
• For a well property, provide the well permit number, the well completion report showing depth, casing details and the driller's log, any water quality test results, and a copy of the recorded shared well agreement if the well is shared.
• Is the property connected to Town sewer? The Town provides sewer service only to the core portion of the Town.

Arizona transactions use a Domestic Water Well / Well Use Addendum when the property is served by a water well. An ongoing dispute over a shared well is a material fact that should be disclosed.

What the seller disclosure is required to tell you, and what it is not

Arizona law requires the seller to disclose material facts about the property even if the buyer or a real estate agent does not ask, and those obligations remain even if the parties agree that no Seller's Property Disclosure Statement will be provided. Under the Arizona Association of REALTORS® Residential Resale Real Estate Purchase Contract, the seller must deliver a completed Residential SPDS to the buyer within three days after contract acceptance. Disclosures made on the SPDS are warranties that survive closing.

The utility section of the form asks which services the property receives and from whom, and identifies the water source as municipal, well, or shared well. The disclosure advisory instructs sellers to attach copies of available invoices, receipts, permits, warranties, inspection reports, and leases.

Sellers disclose what they know. Verification is the buyer's job, and buyers are advised to share the SPDS with their home inspector. Note the timing: the SPDS arrives within three days after contract acceptance, which is after you have already committed. The water questions above belong earlier than that.

Where to verify water supply and conservation rules from official sources

Four official sources answer the water questions for a Cave Creek buyer.

The Town of Cave Creek Utilities Department. Located at 37622 N. Cave Creek Road, Cave Creek, AZ 85331, with office hours Monday through Thursday, 7 a.m. to 5 p.m., and reachable at 480-488-6620. The Town offers a non-property owner water service information request form for people seeking information about water service for a property they do not own. It is not the form used to transfer service to a new owner. Have your agent submit it for any property you are evaluating.

The Town's water quality reporting. The U.S. EPA requires every community water supplier to provide customers an annual Consumer Confidence Report summarizing source water, detected contaminants, compliance, and educational material. Cave Creek posts its Water Quality Reports online.

The Town's Water Shortage and Drought Management Plan. The 2022 WSDMP sets out specific actions the Town will take during water supply shortages or droughts. It includes five response stages, Stage 0 through Stage 4. Stage 0 is the "Water Smart" stage, and the Town remains at Stage 0 at all times not declared to be Stages 1, 2, 3, or 4. Stage 1 is the "Water Watch" stage, triggered when the water shortage percentage is 1% or less with no CAP water available for future storage. Stage 2 is the "Water Alert" stage. Town staff evaluate the Water Shortage Percentage and recommend a response stage declaration to the Town Council. The Town notes that a water shortage can occur at any time, including during Colorado River drought shortage conditions or when large water supply infrastructure fails, and encourages water conservation through its tiered water rate structure as a normal practice. One detail matters for buyers looking at unconnected land or well properties: the WSDMP is not intended to apply to residents who are not existing water customers of the Town, such as private well owners or lots without an active water service connection.

The Arizona Department of Water Resources. ADWR's Assured and Adequate Water Supply programs were created to address limited groundwater supplies. Both evaluate the availability of a 100-year water supply considering current and committed demand and growth projections, and the Assured Water Supply Program operates within Arizona's seven Active Management Areas. The Phoenix Active Management Area encompasses 5,646 square miles and about 4.6 million residents. The State will not approve new determinations of Assured Water Supply within the Phoenix AMA based on groundwater supplies. Developments within existing Certificates or Designations of Assured Water Supply may continue, but new determinations must rely on alternative water sources. ADWR updated the Phoenix AMA groundwater model in 2026 with recent pumping and recharge data and updated the 100-year Assured Water Supply projection, referred to as Version 3, and states it will continue to make model and projection updates on an annual basis going forward. A Certificate of Assured Water Supply applies to a subdivision of six or more lots outside a designated provider's coverage, where the developer must prove the 100-year supply at the project level.

How to confirm municipal, well, or hauled water on a specific property

Work through it in this order.

1. Confirm jurisdiction first. Check the address against the Town of Cave Creek zoning map contained in the zoning ordinance, since 85331 properties can sit in the Town of Cave Creek, the Town of Carefree, the City of Phoenix, the City of Scottsdale, or unincorporated Maricopa County.
2. Identify the serving water system. Arizona publishes a Community Water Systems Interactive Map that lets you search by water system name or number, or click a service area, to see the owner name, address, phone number, system numbers, and service-area population.
3. Confirm the physical connection with the Town. If you are uncertain whether a residence is connected to the Town's water system, contact the Town's Utility Department at 480-488-6620, and have your agent submit the non-property owner water service information request form.
4. If the answer is a well, pull the record. The ADWR well registry is searchable at wellregistry.azwater.gov. Request the well permit number, the well completion report showing depth, casing details and the driller's log, any water quality test results, and the recorded shared well agreement if the well is shared.
5. If the answer is neither Town water nor a well, treat delivery as the open question. Homeowners in Rio Verde Foothills, an unincorporated community north of Scottsdale, had private wells or water delivered by trucks, with no traditional piped delivery system like nearby incorporated towns.
6. Check sewer separately. Town sewer reaches only the core portion of the Town.

One more jurisdictional note if you plan to build or modify: building and plumbing permits in the Cave Creek area are issued by the Town of Cave Creek for incorporated lots and by Maricopa County Planning and Development for unincorporated lots. Well permits come from the Arizona Department of Water Resources.

What to hand your agent before you schedule the first tour

Give your agent a short written list and ask for answers before you drive out. For each address on your tour list, request:

• Jurisdiction confirmed against the Town of Cave Creek zoning map contained in the zoning ordinance.
• The serving water system name from the Community Water Systems Interactive Map.
• Whether the property is already physically connected to Town of Cave Creek water, confirmed through the Utility Department at 480-488-6620 or the Town's non-property owner water service information request form.
• Whether the property is on a well, and the ADWR well registry record if so.
• Whether the property is connected to Town sewer or on septic.

This is not busywork. The Town is no longer accepting requests for Will Serves outside the Town of Cave Creek, so for a property outside Town boundaries that is not already connected, the water answer is fixed before you ever write an offer. Learning that on the drive home is fine. Learning it during inspection is expensive.

Two Town documents are worth reading in full before you buy. The Town's water service area lies in the northern portion of the East Salt River Valley Sub-basin and the central portion of the Carefree Sub-basin. The Town's major water system components include a surface water treatment plant, storage tanks, booster pumps, valves, pressure regulating equipment, and roughly 100 miles of distribution mains ranging from 2 to 16 inches in diameter. At its November 18, 2024 meeting, the Cave Creek Town Council adopted a new Integrated Utility Master Plan evaluating existing water, wastewater and reclaimed water systems.

The Bottom Line

Water in Cave Creek is a parcel-level fact, not a city-level one. A 85331 address can sit in the Town of Cave Creek, the Town of Carefree, the City of Phoenix, the City of Scottsdale, or unincorporated Maricopa County, and the Town serves water to most, not all, residences and businesses within its own boundaries. Confirm jurisdiction on the Town's zoning map, confirm the serving system, confirm the physical connection with the Utility Department at 480-488-6620, and pull the ADWR well record if there is a well.

Send me the addresses you are considering and I will run the jurisdiction and water-system checks before you tour them.

Written by Nadia Lopez, part of the Kristan Cole Network team.

Sources

Pages read on September 14, 2026.

• Cave Creek, AZ: FAQs
• Cave Creek, AZ: Residential Services
• Cave Creek, AZ: Utilities
• Town of Cave Creek Water Shortage and Drought Management Plan (cavecreekaz.gov)
• Cave Creek, AZ: Stages of Drought and Drought Management
• Arizona Department of Water Resources: Phoenix AMA Groundwater Supply Updates