Baltimore County, MD Environmental Rules: Boat Dock Permits (2026)
Key Facts
- Governing law
- BCZR Section 417, Waterfront Construction
- Extension limit
- 300 ft beyond mean low tide, or 1/3 waterway width
- Property-line setback
- 10 ft, preserving a 20-ft open strip
- Application filed with
- County Building Engineer, plot diagram required
- Public notice
- 15-day property posting before permit issues
- Marina/boatyard approval
- Health Department sign-off required
- Violation penalty
- Misdemeanor, up to $100 fine or 30 days jail
Summary
Baltimore County requires a permit before any pier, dock, bulkhead, or mooring pile is built beyond mean low tide under BCZR Section 417. The Department of Permits, Approvals and Inspections reviews a plot diagram with every application, and the structure must fit within fixed divisional lines, size limits, and a public notice period before a permit is issued.
All waterfront construction, such as piers, wharves, docks, bulkheads or other work extended into navigable waters beyond mean low tide as prescribed in Baltimore County Design Manual, shall be governed by these regulations as well as by § 33-2-801 of the Baltimore County Code, except that nothing in these regulations shall apply to the M.H. Zone and to the extension of industrial waterfront facilities to the limit of Corps of Engineers' established pierhead or bulkhead lines. ... No construction, beyond mean low tide, including mooring piles, will be permitted within ten feet of divisional lines as established. The effect of this requirement will be to maintain a 20-foot open access strip between the facilities of adjoining property owners. ... Any structure built beyond mean low tide must be contained within construction offsets as prescribed. In addition to meeting these requirements, the structure must not extend beyond any of the following limits: A. Three hundred feet beyond mean low tide. B. In the absence of a definable channel, not more than one-third the width of waterway. C. Not beyond the near boundary of a definable channel.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 29 | Zoning Regulations: Supplement 10).
Full Breakdown
Under BCZR Section 417, waterfront construction such as piers, wharves, docks, bulkheads and mooring piles extending beyond mean low tide is governed by the zoning regulations together with Baltimore County Code Section 33-2-801, except in the M.H. Zone and for industrial facilities extending to a Corps of Engineers pierhead or bulkhead line (Section 417.1). Every application must be filed with the Building Engineer along with a plot diagram showing the property, adjoining lots, and existing and proposed construction beyond mean low tide; the Building Engineer can also require a plan sealed by a professional engineer or land surveyor (Section 417.2).
Divisional lines separating neighboring waterfront properties are drawn perpendicular to the shoreline (or by dividing converging or diverging areas equally on irregular shorelines), and the Department of Planning sets construction limits to avoid conflicts with existing facilities (Section 417.3). No structure, including mooring piles, may be built within ten feet of a divisional line, preserving a 20-foot open access strip between neighboring waterfront facilities (Section 417.4). Structures beyond mean low tide are capped at 300 feet, or, where no defined channel exists, at one-third of the waterway's width, and may never cross the near boundary of a definable channel (Section 417.5).
New marinas, boatyards, or connected service buildings also need Baltimore County Health Department approval before a permit issues (Section 417.6). Before a pier or mooring pile permit is granted, the applicant must post the property for 15 days; an adjacent owner may request a hearing before an Administrative Law Judge, and if none is requested the Code Official (the Director of Permits, Approvals and Inspections or a designee) may issue the permit with conditions (Section 417.9). Waterfront work must also satisfy Baltimore County Code Sections 33-2-604 through 33-2-607 governing water-dependent facilities and shore erosion protection.
Violations & Fines
A permit holder who builds outside these limits, skips the required plot diagram, or bypasses the 15-day posting is in violation of the zoning regulations. Under BCZR Section 503.1, violating any regulation or restriction adopted under the zoning ordinance is a misdemeanor punishable by a fine of up to $100, imprisonment of up to 30 days, or both, with each day a violation continues counted as a separate offense.
Frequently Asked Questions
Do I need a permit to build a dock in Baltimore County?
How close to my neighbor's property line can my pier extend?
How far can my pier extend into the water?
Can a neighbor object to my dock permit application?
What happens if I build a dock without a permit?
Sources & Official References
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