Septic Permits When Buying/Selling in Rivercrest

October 16, 2025

Buying or selling a home in Rivercrest and seeing “septic” all over the disclosures? You are not alone. Rivercrest has a mix of lakefront and hilltop lots, and the rules change depending on where your drainfield sits. With the right plan, you can protect your timeline, avoid surprises, and keep your deal on track. Let’s dive in.

Who issues septic permits in Rivercrest

Rivercrest sits in Austin and Travis County, so you need to confirm which office regulates your specific address. If a property has water frontage on Lake Austin or its tributaries, the City of Austin’s Austin Water OSSF program is the authority. Use the City’s interactive map and program page to verify the parcel before you act. Start with Austin Water’s OSSF page.

If the property is outside the City’s OSSF jurisdiction, Travis County Development Services handles septic permitting. Their residential OSSF page outlines permit types, submittal checklists, and inspection contacts. Check Travis County’s OSSF permit page if the City map shows you are not under Austin Water.

When jurisdiction is unclear, the Texas Commission on Environmental Quality (TCEQ) sets the statewide rules and can help you understand the baseline requirements. Local programs can be stricter than state minimums. Review TCEQ’s OSSF permitting guidance to understand how the pieces fit together.

Permit types you might encounter

You will most commonly see permits for a new installation, a repair or replacement, an alteration or extension, or an abandonment. A simple ownership change can also trigger an amendment to the license to operate. Both Austin and Travis County require permits for construction, most repairs, and replacements.

Typical applications include a site plan, soil evaluation, and property details. Many systems require a TCEQ-licensed site evaluator or a professional engineer for design. Plan ahead so you have the right professionals lined up before you submit.

How the process works and how long it takes

At a high level, expect the sequence to run site evaluation, system design, permit review, construction, then inspections and final approval. State rules give local authorities about 30 days to approve or deny planning materials, but real timelines depend on complexity and submittal quality. TCEQ’s guidance on permits and timelines is a good baseline.

Inspections are required during construction. Both Austin and Travis County schedule inspections through their portals or by email or phone. Build in lead time for inspection requests, especially on larger or more complex systems.

For fees, you will pay a local permit fee plus a small TCEQ research fee. The state lists baseline application fees in 30 TAC §285.21, but local schedules vary, so confirm current numbers directly with the permitting office. See the state fee reference at 30 TAC §285.21.

Rivercrest rules that often affect your deal

Lake proximity and nitrogen reduction. If the drainfield sits within 75 feet of Lake Austin or within mapped recharge zones, Austin may require a nitrogen-reducing treatment system. These systems usually come with a maintenance contract obligation and higher upfront and ongoing costs. Verify whether your parcel triggers these rules on Austin Water’s OSSF page.

Setbacks and separation distances. State rules set minimum distances from tanks and drainfields to wells, surface water, property lines, and more. Local programs can be stricter. Your designer will measure and show these on the site plan. You can review the state table in Texas Administrative Code separation distances.

Small lots and lot joining. Some Rivercrest lots are tight. If a single lot cannot fit an approved system, Austin may allow you to join adjacent lots with a recorded restrictive covenant. This requires legal work and can affect title timing, so address it early.

Floodplain and watershed constraints. Properties near the lake or creeks may sit in regulated floodplains. Extra reviews or steps can apply to repair or replacement work. For context on local permit center guidance, see Travis County’s permitting center.

Buyer and seller checklist

Follow these steps to keep your Rivercrest transaction smooth and compliant:

  • Verify jurisdiction for the exact address using the City’s OSSF map, then confirm with Travis County if needed. Start at Austin Water’s OSSF page.
  • Gather records. Sellers should pull permits, system design, soil evaluation, inspection history, and maintenance contracts. Buyers should request copies early in the option period.
  • Ask the lender if a septic inspection is required. TCEQ notes that lenders, not the state, drive many transaction inspections. See TCEQ’s buyer and seller advice.
  • Schedule a licensed septic inspection during due diligence. Do not pump the tank right before the inspection, since that can mask drainfield issues. This best practice is highlighted in a septic inspection guide.
  • If repairs or replacement are needed, get written estimates and permitting guidance from licensed pros. For lake-proximate sites, budget for nitrogen-reducing equipment and an ongoing maintenance contract.
  • After closing, amend the license to operate as required by the local authority and transfer any maintenance contracts to your name.

Deal and negotiation tips

  • Lender vs. local rules. A system might be grandfathered locally, yet the lender could still require repairs or replacement to fund the loan. Ask early so you can set expectations and timelines.
  • Budget for advanced systems. Nitrogen-reducing systems often carry higher capital costs and ongoing maintenance plans. Confirm contract transfer terms during negotiations.
  • Watch the lot constraints. If your design needs lot joining or special approvals, build that time into your contract and title work.
  • Plan for weather and watershed. Floodplain reviews and site conditions can affect inspection windows and construction timing. Adjust contingency dates accordingly.

After closing: keep your system compliant

Once you take title, update ownership with the permitting authority and confirm your system’s maintenance schedule. For advanced systems, keep your maintenance provider active and log service visits. Staying current protects your investment and prevents future permitting headaches.

Ready to navigate septic permits with confidence in Rivercrest? Let’s plan your path from disclosure to a smooth close. If you would like tailored guidance for your property, connect with Shavonne Martin.

FAQs

Do you need a septic permit to sell a home in Rivercrest?

  • Local authorities regulate system work, but sale requirements often come from lenders. TCEQ confirms transaction inspections are lender driven, so ask your lender early and plan your timeline accordingly. See TCEQ’s buyer and seller advice.

How do you check if your Rivercrest property is under the City or County?

What is a nitrogen-reducing septic system near Lake Austin?

  • It is an advanced treatment system sometimes required when a drainfield is close to Lake Austin or within mapped recharge zones. These systems typically require an ongoing maintenance contract. See criteria on Austin Water’s OSSF page.

How long do septic permits take in Austin or Travis County?

  • State rules give authorities about 30 days to act on planning materials, but total time varies by design complexity, submittal quality, and inspection scheduling. Review the baseline in TCEQ’s permit guidance.

What records should a seller provide for a septic system in Rivercrest?

  • Provide permit history, site evaluation, system design, inspection reports, and any maintenance contracts for advanced systems. Austin Water and Travis County keep records you can request via their OSSF pages.

Should you pump the tank before a septic inspection when selling?

  • No. Pumping right before the inspection can hide drainfield performance issues. Schedule the inspection first, then follow the inspector’s guidance. See this septic inspection guide.

Work With Shavonne

Get assistance in determining current property value, crafting a competitive offer, writing and negotiating a contract, and much more. Contact me today.