How should an HOA board handle a drainage complaint between neighbors?

By OurHOA · General information · Revised September 24, 2026

How an HOA board handles a drainage complaint between neighbors: whose water it is, easements and grading, violation letters, private disputes and a timeline.

Part of the HOA board handbook: residents and communication.

Start by sorting out whose water it is

A drainage complaint usually arrives as a photo of a flooded side yard and one sentence: the neighbor's new patio is dumping all its water on me. The board's first job is not to decide who is right. It is to put the complaint in the right bucket. The water may come from something the association maintains, such as a swale in a drainage easement, a common-area slope or a clogged inlet. Then the association fixes its own property. The water may come from a covenant violation, such as an unapproved regrade, a filled-in swale or a downspout pointed at the property line where the rules forbid it. Then the board enforces through its normal process. Or the water may be running downhill the way it always has, with no association rule broken. Then it is a private matter between two owners, and the board should say so in writing instead of letting the complaint sit. Most complaints are a mix, so expect to split one complaint into parts. Rules vary by state and by your governing documents, and this guide is general education, not legal advice.

Pull the paper before the site visit

Gather five things before anyone walks the lots. The recorded plat, which shows drainage easements along lot lines; check the legend for the abbreviation the surveyor used. The declaration's maintenance clause, which says who maintains swales and easements, the association or the lot owner. The city's approved grading or drainage plan for the subdivision, if the builder filed one. Architectural approvals for both lots over the last several years, including patios, pools, fences, regrading and French drains. And any earlier complaints about the same spot. The approvals matter most. A drainage fight often starts with an improvement the committee approved without asking where the water would go. In Florida, many subdivisions were built under a stormwater permit from the water management district that covers the swales, inlets and ponds as one system. The Southwest Florida Water Management District tells homeowners in District-permitted subdivisions to contact their HOA first about swales and ponds, so expect those calls to land with the board.

Visit when it rains, and bring a second person

A dry yard tells you almost nothing. Go during a real rain or within a few hours of one. Send two people, two directors or a director and the manager, and never enter a fenced yard without the owner's permission. Write down where the water enters the complaining owner's lot and trace it back. Look for downspouts and sump pump lines aimed at the property line, irrigation running during the storm, fresh fill or a raised flower bed, a swale filled with sod or mulch, a solid fence or wall sitting across the natural flow, and a blocked inlet or pipe on common area. Take dated photos and a short video of moving water. Do not give engineering advice on the spot or tell either owner what to build. A director who says "just put in a French drain" can end up owning the result. If the source looks like association property and the cause is unclear, hire a civil engineer or drainage contractor to look at the association's part.

What the law says about sending water onto a neighbor

The underlying rule in most places is that an owner can manage water on their own lot but cannot redirect it onto a neighbor in a way that causes damage. The states say it differently. Texas puts it in a statute. Water Code section 11.086(a) says no person may divert or impound the natural flow of surface waters in a manner that damages another's property by overflow, and section 11.086(b) gives the injured owner remedies at law and in equity, including damages. That claim belongs to the injured owner, and a court decides it. The board does not. In Colorado, Denver's homeowner guide to runoff tells owners never to slope a lot or landscaping to push water onto a neighbor's lot or to block water from it, and says the building code requires more than a 5 percent slope near a home's foundation. Your city's rules may differ, but that is the common expectation for grading. In Florida and California the rule comes mainly from court decisions, so ask the association's attorney before quoting one to an owner. For a board, the practical point is the same everywhere. The association enforces its own documents and maintains its own property. It does not decide damages between two owners, and it should not pay to fix one owner's lot to settle a neighbor's complaint unless the association caused the problem.

When it is a covenant violation

If the cause is something the governing documents regulate, such as an unapproved regrade, a filled swale inside a drainage easement or a downspout rule, treat it like any other violation and follow your state's notice rules exactly. Texas: under Property Code section 209.006, before fining an owner the association must send written notice by certified mail that describes the violation, gives a reasonable period to cure if the violation is curable and not a threat to public health or safety, and tells the owner they may request a hearing under section 209.007 on or before the 30th day after the notice was mailed. Florida: under section 720.305(2)(b), a fine or suspension needs at least 14 days' written notice and a hearing within 90 days before a committee of at least three members who are not officers, directors or employees of the association, or close relatives of one. Colorado: section 38-33.3-209.5(1)(b)(IV) requires a written covenant enforcement policy with notice and hearing procedures and a fine schedule. Follow your own policy to the letter. Sample wording for the first letter: "On [date], representatives of the board observed that the swale along the east side of your lot, inside the recorded drainage easement, has been filled with soil and sod. Section [x] of the declaration prohibits obstructing drainage easements. Water that used to run along the swale now flows onto the lot at [address]. Please restore the swale to its original grade by [date], or contact us by then with a plan and schedule." Our guide on how to write an HOA courtesy violation letter covers tone and delivery for that first contact.

When it is a private dispute, say so in writing

If the water follows the natural slope and nothing the association regulates caused it, tell the complaining owner plainly. Silence reads as the board taking sides. Sample reply: "Thank you for reporting the water on your lot after the storm on [date]. Two board members visited on [date]. We did not find an association-maintained drainage feature involved or a violation of the governing documents. Water flowing between two privately owned lots is generally a matter between those owners. The recorded plat for your lot is attached. The city's stormwater office is at [contact]. If you learn of a change on the neighboring lot that required architectural approval, please tell us and we will look again." The association's formal dispute processes usually do not reach neighbor-to-neighbor fights. Florida's presuit mediation requirement in section 720.311(2)(a) covers disputes between an association and a parcel owner, and Colorado's section 38-33.3-209.5(1)(b)(VIII) calls for a policy on disputes between the association and unit owners. Suggesting a community mediation center is fine. The board should not act as the mediator between two members it may later have to enforce against. Our library guide on how an HOA resolves a dispute between neighbors covers the owner's side of that conversation.

When the problem is the association's

If the water comes from a clogged inlet, a failed pipe, an eroded common-area slope or a swale the association is responsible for, own it. Schedule the repair, tell both owners what will be done and when, and notify the association's insurer if an owner reports damage to a home. In a Florida community with a permitted stormwater system, check the permit conditions before regrading a swale or changing a pipe, and call the water management district if the work might change how the system was designed to drain. Elsewhere, ask the city whether the work needs a grading permit. Then fix the cause for the future. Add the swales and inlets to the preventive maintenance calendar, put a drainage question on the architectural application ("Show where water from this improvement will go"), and add any failing drainage structure to the reserve study.

A sample timeline and the mistakes to avoid

Day 0: complaint received. Acknowledge it in writing within a few business days and ask for dated photos. Days 1 to 14: pull the plat, easements, grading plan and approvals. Visit during or right after the next real rain. Days 14 to 30: board decides which bucket the complaint falls in, in a meeting if your documents or state law require one. Send the violation notice, the private-matter letter or the repair schedule. Days 30 to 90: cure period, hearing if requested, repair completed. Revisit after the next heavy rain to confirm the fix worked. The mistakes are predictable. Boards pick a side based on who complained first or loudest. A director with a shovel regrades a common-area slope without checking the plan. Boards approve patios and pools without asking where the water goes, then act surprised when it goes next door. And some boards pay to fix a private lot to make a complaint go away, which tells every other owner that the association now handles private drainage. Decide each complaint on the documents and what you saw in the rain, write down why, and keep the file.

Sources

These guides are general education for HOA boards and residents, not legal, tax, or financial advice. Rules vary by state and by your community's governing documents - check with a professional for your situation.

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