Brazos River Authority Dock Permits at Possum Kingdom Lake

The On-Water Facility Permit Covers Your Dock

The Brazos River Authority's On-Water Facility Permit allows a lakeside property owner to construct and maintain a private dock or similar structure over the reservoir bed, with facility sketches required as part of the application. Construction may not begin until the permit is approved and returned — a straightforward but genuinely important sequencing rule worth confirming with any seller who claims a dock was "already permitted."

Real, Specific Size and Design Limits Apply

BRA allows one residential on-water facility per shoreline lot, generally centered on the property's water frontage, capped at 2,000 total square feet including slips, overhangs, diving boards, stairways, storage, and any walkway over 6 feet wide. A small enclosed storage closet up to 40 square feet is allowed, but the structure must remain one story, cannot extend more than 100 feet into the lake (or one-third the distance between shorelines, whichever is less), and faces a hard 200-foot maximum regardless of the lake's width at that point.

No Living Quarters, Kitchens, or Plumbing — Ever

BRA's rules are explicit and absolute here: living quarters, kitchens, plumbing, sinks, bathing facilities, and toilet facilities are not allowed in any on-water structure at this lake. Floating habitable structures are prohibited outright. A buyer who has seen a genuinely livable boathouse at another lake should not assume the same is achievable here — BRA's rules rule this out categorically, not simply through a stricter permitting process.

Construction and Flotation Standards Are Specific

A compliant facility must be built with polystyrene or air-filled flotation compartments — barrels and drums are explicitly prohibited — and must display amber reflectors every 20 feet, with full nighttime illumination required for any facility extending more than 100 feet into the lake. These are genuine construction-cost factors to build into a contractor quote, not simply paperwork requirements.

Beyond the Dock: Three More BRA Permit Types

A Residential-Use Water Permit allows a property owner to install water pumps and pipelines drawing up to 5,000 gallons monthly from the reservoir for irrigation, with the application fee rising to $50 as of September 2025. An On-Site Sewage Facility License covers septic system installation or modification. An Improvement Permit covers retaining walls, dredging under a dock, stump removal, and maintenance to an existing private boat ramp — each requiring its own separate application.

Permits Appear Tied to the Property, Not the Person

BRA's application process requires proof that the applicant owns or leases the property adjoining the lake, suggesting permits function as property-specific authorizations rather than something a seller personally carries and transfers informally. A buyer should request written confirmation of a specific dock's current permit status directly from BRA's Lake Office rather than assuming an existing structure is automatically covered under the new owner's name after closing.

An Approved Permit Does Not Guarantee Water Access

BRA states this directly and plainly: Possum Kingdom is a water-supply reservoir with fluctuating levels, and an approved on-water facility permit does not guarantee actual access to water for recreation. A dock built and permitted at a normal conservation level may sit meaningfully farther from usable water during a drawdown — a genuinely important distinction from a purely recreational lake where water level rarely threatens the basic function of a dock.

Vessel and Mooring Rules Round Out the Picture

Boats must operate at slow, no-wake speed within 100 feet of shoreline, docks, or occupied watercraft, and mooring or beaching a vessel is limited to two days at a time. Personal watercraft storage is permitted alongside a facility as long as it does not create an unreasonable hazard — reasonable, everyday rules that apply uniformly across the lake's three counties.

Modifications to an Existing Dock Also Require a New Permit

Any modification to an existing on-water facility — expanding a slip, adding a storage closet, or altering the roofline — requires its own BRA permit application, not simply an informal notification. A buyer planning to expand or renovate an existing dock after closing should confirm directly with BRA whether the current structure and the planned modification together would still fit within the 2,000-square-foot cap before finalizing renovation plans.

Commercial Facilities Follow a Separate, Stricter Track

BRA maintains a distinct application process for commercial on-water facilities, separate from the residential permit covered above. A buyer considering any commercial use of a dock — a rental marina slip operation, for instance — should confirm directly with BRA whether that use requires the commercial track rather than assuming a residential permit covers it.

What This Means If You're Buying

A buyer specifically interested in dock rights at Possum Kingdom should confirm the current permit status of any existing structure directly with BRA's Lake Office, understand that a compliant new dock faces genuine size and design restrictions rather than open-ended customization, and factor in that water-level fluctuation can affect actual water access independent of permit approval. None of this makes building or maintaining a dock here impractical — thousands of property owners do it successfully — but it does mean treating BRA's specific rulebook as its own distinct system rather than assuming it mirrors TRWD, UNRMWA, or USACE rules covered elsewhere on this site.