Dock Rules: LCRA, Submerged Land & the 100-Foot Line

LCRA Is Not the Corps of Engineers — the Rules Are Genuinely Different

Every other lake covered in depth on this site so far has been a U.S. Army Corps of Engineers reservoir, where the federal government owns the shoreline and every dock requires a five-year Shoreline Use Permit that does not transfer at sale. Lake Travis works nothing like that. The Lower Colorado River Authority manages the water and the dam, but most of the shoreline around the lake is privately owned. That single structural difference changes almost everything about how docks work here, and a buyer coming from a Corps-managed lake should not assume the same rules apply.

No Permit Under 1,500 Square Feet — With Real Conditions Attached

LCRA does not require a permit for a residential dock of 1,500 square feet or less, which removes the recurring federal permitting process entirely compared to a Corps lake. What it does not remove is compliance with LCRA's published Safety Standards for Residential Docks on the Highland Lakes, covering flotation, lighting, access, and anchoring. All electrical work on a dock must be performed by a licensed electrician under Texas law — not optional, and not something to DIY around. Docks larger than 1,500 square feet — mostly commercial marinas and large community facilities — require a formal permit under the Highland Lakes Marina Ordinance, which was updated in 2023 with new fee structures and a requirement for encapsulated flotation foam rather than older foam types prone to breaking apart in the water over time.

The Lake Travis-Specific 100-Foot Rule

Dock placement standards vary by which Highland Lake you are on. For Lake Travis specifically, a dock may extend up to 100 feet from the shoreline, provided an additional 40 feet of open lake access remains beyond it. That is a meaningfully more generous allowance than some of the smaller, narrower Highland Lakes carry, reflecting Travis's greater width and depth in most developed areas — but it is still a hard limit, and a dock design that pushes toward that maximum should be confirmed against current LCRA standards before construction begins, not assumed from a neighboring property's existing dock.

Submerged Land Ownership: The Step Buyers Actually Skip

Owning lakefront property at Lake Travis does not automatically mean you own the submerged land beneath the water in front of it, and it does not automatically grant the right to build a dock there. Buyers must verify ownership of the submerged land through county deed records, and where a property is adjacent to LCRA-owned land, the buyer must contact LCRA Real Estate Services directly to secure permission before placing any dock over LCRA-owned submerged property. This is arguably the single most important pre-purchase check specific to this lake, and it is genuinely easy to skip if you are used to a Corps lake's simpler federal-shoreline model. Confirm submerged land ownership before you get attached to a specific dock design, not after.

Drought Complicates Everything — Including Where Your Dock Sits

LCRA measures a dock's allowed distance from shore relative to the current waterline, not a fixed reference point tied to full pool. That sounds like it should make life easier during a drought drawdown, but in practice it means owners cannot simply push a dock farther out to chase falling water without running into the same distance limits all over again at the new shoreline — and relocating a dock without following the proper process risks creating a navigation hazard and real liability exposure for the owner. Given Lake Travis's documented history of dramatic, multi-year drawdowns, this is not a hypothetical concern; it is a genuine, recurring maintenance and compliance question for any dock owner on this lake.

HOA Rules Can Be Stricter Than LCRA's

Many Lake Travis communities, Lakeway prominent among them, layer their own HOA dock standards on top of LCRA's baseline rules — often with smaller size and footprint limits, aesthetic requirements, stricter setbacks, longer approval timelines, and view-corridor protections for neighboring properties. An HOA's rules can be meaningfully more restrictive than what LCRA alone would allow, and the LCRA standard is a floor, not a guarantee of what your specific community permits. Review the HOA's current dock guidelines in full before finalizing any dock design, not just LCRA's statewide standard.

What This Means for Your Search

Before assuming a Lake Travis dock is a simple, low-friction addition to a waterfront property, confirm four things: whether you actually own or have permission to use the submerged land beneath the proposed dock location; whether your specific HOA imposes rules stricter than LCRA's; whether an existing dock on a property you're considering was ever properly authorized in the first place; and how that dock has actually performed during this lake's past drawdown events. A local agent and a dock builder who both work Lake Travis specifically, not just the Highland Lakes generally, can walk you through all four before you close.