What is a MUD?
A municipal utility district, or MUD, is a local government district created under Chapter 54 of the Texas Water Code (opens in new tab). It can build and run the things a neighborhood needs to exist: water, sewer, and drainage, and it can provide parks and recreational facilities. Some MUDs also get road powers from the Legislature.
The point is to pay for that infrastructure through the district instead of the price of the house. The state’s required notice says it in one line: the cost of district facilities is not included in the purchase price of your property.
What is a MUD tax?
It’s a property tax the MUD charges on homes inside the district. There are two parts:
- A maintenance tax. With voter approval, the district can levy a tax to run and maintain its facilities.
- A tax to pay off bonds. The district can borrow by selling bonds, and voters can approve an unlimited tax to repay them. Once those bonds are issued, the board has to levy a tax each year that covers the debt.
The state’s water district guide from TCEQ (opens in new tab) puts it plainly: the bond tax is levied on all property in the district based on appraised value. The district sets its rates every year.
What is a PID assessment?
A public improvement district, or PID, is created by a city or county under Chapter 372 of the Local Government Code (opens in new tab). It pays for improvements that benefit one defined area: streets, sidewalks, water and drainage, landscaping, lighting, parks, and similar projects.
The cost is split up among the properties in the district based on the benefit each one gets. You can pay your share in full at any time. If you don’t, you pay it in annual installments, and the amount can change from year to year. The city or county reviews the district’s service plan every year, and that’s where each year’s installment gets set.
One more thing worth knowing: a PID assessment is a lien on the house until it’s paid, ahead of every other lien except property taxes. That’s one reason a lender pays attention to it.
Which DFW new-build communities have them?
A few you’ll run into around west Fort Worth and Aledo:
- Walsh. Walsh is in Fort Worth PID 16 (opens in new tab), set up in 2016 for streets, drainage, utilities, and parks. The city says assessments are per parcel and can be paid in full, in part, or in annual installments.
- Veale Ranch. Veale Ranch is Fort Worth PID 22 (opens in new tab), set up in 2023 on Fort Worth’s west side. It pays for roads, utilities, drainage, landscaping, and parks, alongside an overlapping tax increment zone.
- Morningstar. Morningstar has two MUDs: Morningstar Ranch Municipal Utility District No. 1 and Morningstar Ranch Municipal Utility District No. 2 of Parker County. The Legislature gave both of them road powers.
- Brown Ranch. In 2026 the landowners and developer Hines petitioned TCEQ to create Parker and Tarrant Counties Municipal Utility District No. 1 (opens in new tab), about 1,477 acres in Fort Worth’s extraterritorial jurisdiction, for water, sewer, drainage, and roads. The district called an election for November 3, 2026 (opens in new tab) to confirm it and approve bonds and taxes. More on my Aledo page.
- Hudson Oaks. Parker CAD’s 2026 list of taxing units includes the City of Hudson Oaks PID.
Not every house in these areas is in every district, and districts often get built out in phases. The notice for the specific address is what counts.
I’m not putting tax rates here on purpose. They change every year, and they vary by district and even by phase. The notice and the district will give you the current number.
What notice do I get before I buy?
Texas requires the seller to tell you in writing, before you sign a binding contract.
For a MUD, it’s called the “Notice to Purchaser of Special Taxing or Assessment District.” Section 49.452 of the Water Code (opens in new tab) requires it, and Section 49.4521 spells out what it says: the district’s name, that it can tax and issue bonds, the current or projected tax rate, how much in bonds voters approved and how much has been issued, and what the district is for. It also says the cost of the district’s facilities isn’t included in the price of your house. And it warns that the district sets tax rates every year and the information can change.
For a PID, it’s called the “Notice of Obligation to Pay Improvement District Assessment,” required by Section 5.014 of the Property Code (opens in new tab). It tells you that you owe an assessment, that you can pay it in full at any time, and that otherwise the annual installments will vary from year to year. It also tells you plainly that not paying can lead to penalties, interest, a lien, and foreclosure.
For both, you sign the notice, and a copy gets signed again at closing and recorded in the county deed records.
If you want to read it early, you can. A MUD that has to keep a website has to post its notice there or set up a way to get it. A city or county that runs a PID has to post the service plan, including the notice form, on its website.
How do MUD and PID taxes change my mortgage payment?
They add to the tax and assessment part of your payment, which usually runs through escrow.
When I qualify you, they count. Fannie Mae’s guidelines (opens in new tab) put real estate taxes and special assessments in the monthly housing payment. On a purchase or new construction, the lender has to estimate taxes on the value of the land plus the house, not just the lot. That’s the right way to do it, because the lot bill is the trap.
Here’s the hard part. Appraisal districts value property as of January 1. If your house wasn’t finished on January 1, the first tax bill may reflect mostly the lot. A MUD tax is based on appraised value, so it grows when the finished house hits the roll, right along with your city, county, and school taxes. The PID installment can change too, because it’s reset every year in the service plan. If the escrow was set up off a lot-only bill, the first escrow review catches up, and the payment jumps. I wrote more about that in why your mortgage payment went up.
If you’re paying a PID assessment through escrow, ask your lender to confirm it’s included in the escrow setup at closing.
Here’s what I know, and here’s what nobody knows
What I know: the districts are real, the notices are required, and the assessment or tax will be part of your payment for years. PID revenue bonds under Chapter 372 can run as long as 40 years.
What nobody knows: next year’s number. MUD boards set tax rates every year, and PID installments are approved every year in the service plan. And if a MUD sits in a city’s extraterritorial jurisdiction, the notice will tell you that Texas law governs whether the city can annex it and whether the district would be dissolved. Nobody can tell you today if or when that happens.
What should I do before I sign?
- Ask your agent or the builder whether the address is in a MUD, a PID, or both. Ask for the notice before you sign the contract.
- Send me the notice. I’ll put the tax or assessment in the payment from day one, based on the finished house.
- File your homestead exemption after you move in. Here’s how that works in Tarrant and Parker County.
- Building on your own lot? Read my construction loan page for how that loan works.
The good news: a MUD or PID isn’t a dealbreaker. It’s how a lot of these neighborhoods got their roads, water, and parks built. Once you know the number, it’s just part of the payment, and you can decide with your eyes open. Call me at 817-873-6288 or send the short form with the address, and I’ll show you the full payment before you fall in love with the floor plan.