TPDES Permit Transfer During a Property Sale: What Happens to an Active Discharge Permit When a Developer Sells a Partially Built Project

A TPDES permit does not pass to a buyer with the deed. TCEQ issues the permit to a person, and a TPDES permit transfer needs the commission's approval, applied for at least 30 days before the proposed transfer date. Until TCEQ approves it, the seller is still the permittee. When the plant is only partly built, the buyer also takes on the permit's construction, startup and reporting duties, so settle who does what before closing.

Does a TPDES permit transfer with the property?

No. The permit belongs to the permittee, not the land, and it moves only when TCEQ approves a transfer.

The rule is 30 TAC §305.64, Transfer of Permits. It says a permit "is issued in personam and may be transferred only upon approval of the commission." An attempted transfer is not effective for any purpose until then. The deed moves the land and the tanks. The permit stays in the seller's name until TCEQ acts.

How does a TPDES permit transfer work at TCEQ?

You file one TCEQ form, signed by seller and buyer, at least 30 days before the proposed transfer date.

The form is TCEQ's Application to Transfer a Wastewater Permit (TCEQ-20031). Its instructions say a permit must be transferred when a change in ownership or co-permittee occurs. It asks for:

• The permit number, the current permittee's customer (CN) number and the site's RN number.
• A Core Data Form for the new owner.
• The transfer date. TCEQ will not process the application until after that date, and a change of date goes to TCEQ in writing before the old one.
• A lease or deed-recorded easement when someone other than the facility owner owns the plant site, and a lease for a disposal site owned by someone else.
• Whether the applicant owes TCEQ any fees or penalties.
• Notarized signatures. The seller consents. The buyer certifies that it has a copy of the permit and accepts all of its obligations.

Check for a Chapter 210 reclaimed water authorization too. The form lists those among what it covers, but for a publicly owned plant its instructions say one tied to the permit is cancelled on the transfer date, and a new owner who wants one applies on form TCEQ-20427. Ask TCEQ which applies to yours.

Who is responsible for the permit while the sale is pending?

The seller, until TCEQ approves the transfer. After that, the buyer, unless you provide an agreement that says otherwise.

Section 305.64 sets the default. If no agreement on transferring responsibility and liability is provided, the buyer takes them on the date TCEQ approves the transfer. The rule does not relieve the seller of any liability. And a buyer who runs the plant before approval is treated as operating without a permit.

So write it down. The purchase agreement should name the date responsibility moves, who runs the plant and files reports until then, and who answers for a missed sample or notice in between.

What changes when the plant is only partly built?

The buyer takes on the duty to finish the plant as permitted, plus every startup notice the permit requires.

On the transfer form, the buyer certifies that the facilities needed to comply with the permit will be constructed as described in the application TCEQ considered before issuing it. That ties you to the seller's design basis.

Then read the permit's construction-stage conditions. A 2025 TCEQ draft domestic permit page shows the kind of conditions to look for:

• Self-reporting under 30 TAC §§319.1 to 319.11 is suspended until plant startup or first discharge, whichever comes first.
• The permittee gives written notice at least 45 days before startup or anticipated discharge, and before completion of each additional phase, on Notification of Completion Form 20007.
• The summary transmittal letter under 30 TAC §217.6 must be available at the plant site.

Your permit sets its own dates. If closing lands inside a notice window, decide who signs the notice. Collect what the seller built and filed: the sealed design, the transmittal letter, records for finished units and all TCEQ correspondence.

What if the permit application is still pending?

Ask TCEQ how it wants the change handled before you sign. The transfer rule and form are written for an issued permit.

The form starts with the permit number. For an application still in review, ask the Applications Review and Processing Team named on the form, and get the answer in writing. Do not assume the permit will issue in the buyer's name on its own.

Who handles monitoring, reporting and the operator after closing?

The buyer, once the transfer is approved. Set up reporting access and the operator contract before that date.

TCEQ's NetDMR page says that if you submit data to TCEQ on a discharge monitoring report, you must do so electronically. The buyer's people need their own accounts in EPA's Central Data Exchange and NetDMR access, with the signature role for whoever certifies reports.

30 TAC §30.350 requires the permittee to employ or contract with licensed wastewater treatment facility operators at the right license level. For TPDES permits, the transfer form's instructions say a contract operator applies as co-permittee with the owner, while an employee operator does not. Swap contract operators at closing and you may have a co-permittee change to file as well.

What should a buyer check before closing?

The permit's compliance history, any open enforcement, and the readiness items below.

Request TCEQ's compliance history report for the site's RN number. It bears on the transfer itself. Under §305.64, TCEQ may refuse a transfer while a judicial decree, compliance agreement or other enforcement order has not been fully met, and it considers the buyer's own prior compliance record. Treat the permit as one more item in your site feasibility review.

1. Do you have the issued permit and every amendment to it?
2. Did the compliance history report show no open enforcement order?
3. Does the purchase agreement name the date responsibility and liability move?
4. Is the transfer form ready to file at least 30 days before the proposed transfer date?
5. Will the buyer hold the plant site and any disposal site by deed, lease or easement?
6. Do you know the permit's next startup or phase notice date?
7. Is a licensed operator covered for every day, before and after the transfer, with the buyer's NetDMR access set up?

Pass means every answer is yes. Any no is a gap to close before closing or to assign in the agreement.

Questions for your engineer: What does the permit require in the next 90 days? What has been built against the permitted design? Does our plan fit the permit as written?

What if the buyer wants to change the permit?

That is an amendment, a separate application from the transfer.

Under 30 TAC §305.62, a change in a term, condition or provision of a permit requires an amendment, and a major amendment changes a substantive term, requirement or limiting parameter. A larger permitted flow changes a permit term. TCEQ's municipal domestic wastewater permitting steps ask for the application at least 330 days before a new or amended discharge, list two published notices during review, and call for a Public Involvement Plan form with new and major amendment applications. Our post on choosing between a permit modification, renewal or amendment walks through the options.

A note on limits: this is general education on TCEQ rules, forms and guidance as checked in October 2026, not legal advice. Your permit and purchase agreement control the details, and TCEQ decides each transfer. Nothing here predicts an approval or a date.

Frequently asked questions

Does a TPDES permit transfer automatically when a property sells?

No. Under 30 TAC §305.64 a transfer needs TCEQ's approval, and an attempted transfer has no effect until then.

How far ahead do I file a TPDES permit transfer?

At least 30 days before the proposed transfer date.

What if the seller will not sign the transfer form?

Section 305.64 allows an involuntary transfer after notice and a hearing in listed situations, such as a plant never built where the permittee no longer holds enough property rights in the site. Treat it as a fallback, not a plan.

I'm a Texas developer selling a subdivision with a half-built package plant. If a startup notice or report is missed between closing and TCEQ's approval, who answers for it?

Until TCEQ approves the transfer, the permit is still yours, and the transfer rule does not relieve you of liability. A buyer who operates the plant before approval is operating without a permit. Assign that gap in the purchase agreement.

I'm buying a partly built project near Austin that came with an issued TPDES permit, and I want a larger plant. Can I transfer the permit and simply build bigger?

No. On the transfer form you certify the facilities will be built as described in the application TCEQ reviewed. A larger plant needs an amendment under §305.62, with its own application and lead time.

Related resources

• Private Wastewater Treatment Plants in Texas: When Developers Need Their Own TPDES Permit
• Ongoing Compliance After Permit Approval: What a Developer-Operator Needs to Track
• Package Plant Operator Staffing Requirements: What TCEQ Certification Level Does a Development Actually Need?
• What Happens to Your 210E Permit When Your Industrial Tenant Leaves?

Buying or selling a Texas project with a TPDES permit attached?

MES reviews the permit, the construction status and the TCEQ paperwork during due diligence, so both sides know what the permit requires before closing.

Modern Engineering Solutions, McKinney, Texas. Call (214) 833-6748 or contact our team.