Texas Surface Water Law: Suing a Neighbor for Flooding and Drainage Runoff
Under Texas law, diverting surface water onto a neighbor's property is illegal if it causes damage. You generally have a two-year window to file a lawsuit for property damage under the Texas Water Code.
Heavy rains are common in Texas, but when a neighbor alters their landscaping and causes water to flood your property, it becomes a serious legal issue. Whether it is a new subdivision in Austin or a commercial lot in San Antonio, unauthorized surface water runoff can destroy foundations, drown landscaping, and significantly decrease property values.
Understanding your rights under Texas Surface Water Law is critical to stopping the damage and securing compensation. Because these cases involve complex engineering and legal statutes, finding an experienced attorney in our directory is highly recommended to help you navigate the process.
Types of Drainage Disputes
Texas follows the rule that a landowner cannot legally divert or impound surface water in a way that damages another's property. Here are the most common scenarios.
New Construction Runoff
When a property is developed, the natural slope of the land is often altered. If a neighbor builds a new home, adds an extension, or pours concrete without proper drainage planning, the displaced water will naturally flow to the lowest point. If that point is your yard, the neighbor may be liable for the resulting flood damage.
Blocked Natural Drainage Ditches
Natural drainage pathways exist to safely carry rainwater away. If a neighbor fills in a ditch, builds a wall across a natural swale, or blocks a creek, the water will back up onto your land. Blocking natural drainage is a direct violation of state regulations.
Pool Discharge Flooding
Emptying a swimming pool requires thousands of gallons of water to be discharged safely. If a neighbor pumps their pool water directly onto your lawn, causing erosion or flooding your home, this constitutes an illegal diversion of water.
Commercial Parking Lot Runoff
Commercial properties feature large expanses of impermeable concrete. Without massive retention ponds, rain washes quickly off the pavement. If a nearby business channels its parking lot runoff onto your residential property, you may be entitled to substantial damages.
Step-by-Step Process in Texas
Taking action against illegal water diversion requires strict adherence to legal procedures to ensure you obtain an injunction and compensation.
Step 1: Document the Flooding
The moment flooding occurs, take comprehensive photographs and videos showing exactly where the water is coming from and the damage it is causing. This visual evidence is crucial for court.
Step 2: Hire a Drainage Engineer
Courts require scientific proof that the neighbor's actions caused the flooding. You will likely need to hire a civil engineer to inspect the properties and write a professional report detailing how the natural water flow was altered.
Step 3: Send a Cease and Desist Letter
Your attorney should send a formal letter demanding that the neighbor fix the drainage issue and pay for the damages. Sometimes, the threat of a lawsuit is enough to force compliance.
Step 4: File a Lawsuit Under the Texas Water Code
If they refuse, you must file a lawsuit citing Tex. Water Code § 11.086. This statute explicitly prohibits the diversion of surface water that causes damage to adjoining property. The petition must be filed in the proper court, such as the Travis County District Court, Austin or the Bexar County District Court, San Antonio.
Step 5: Submit Injunction Forms
Your lawyer will file a petition for injunctive relief pursuant to Tex. R. Civ. P. 680 and Tex. Water Code § 11.086. An injunction is a court order forcing the neighbor to immediately stop the water diversion while the case is ongoing.
Step 6: Trial and Resolution
During the trial, precedents such as Kraft v. Langford, 565 S.W.2d 223 (TX Supreme Court 1978) may be used to establish liability. If you win, the court can mandate the neighbor to install french drains, regrade their yard, and cover your repair costs.
How Much Does it Cost in Texas?
Pursuing a surface water lawsuit involves several expenses:
| Expense Type | Estimated Cost (USD) |
|---|---|
| Court Filing Fees | $300 - $450 |
| Civil Engineer Report | $1,500 - $3,500 |
| Attorney Fees | $3,000 - $15,000+ |
Under Texas law and the traditional American Rule, each party is responsible for paying their own attorney fees, as Tex. Water Code § 11.086 does not authorize fee-shifting against the losing party.
How Long Does the Process Take?
Obtaining an emergency temporary injunction can happen within a few weeks if the flooding is actively destroying your home. However, completing a full trial for damages generally takes 12 to 24 months, depending on the county docket.
What is the statute of limitations for flooding damage in Texas?
Under Tex. Civ. Prac. & Rem. Code § 16.003, you have two years from the date the property damage occurred to file a lawsuit.
Can I build a wall to block the water from my neighbor?
Generally, you cannot block the natural flow of water. If you build a wall that causes water to back up onto your neighbor's property or someone else's land, you could be sued for illegal diversion.
Does homeowners insurance cover neighbor runoff?
Standard homeowners insurance policies usually do not cover damage caused by surface water runoff or flooding. You must typically seek compensation directly from the responsible neighbor.
Who do I complain to about commercial runoff?
You can file a complaint with your local city or county engineering department. However, government agencies are often slow to act, making a private civil lawsuit the most effective remedy.
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