The Baltimore County Code is the collected body of local laws that govern residents, businesses, and property in Baltimore County, Maryland, and you can read it free online through the Municipal Code Corporation’s (Municode) library, which serves as the official digital publication.1 It covers the everyday rules most people run into: pet licensing, noise, building permits, property maintenance, and the process the county uses to enforce them.
Where To Read the Code
Municode hosts the full text with a browsable table of contents and keyword search. As of the most recent supplement, the online version is codified through Bill No. 54-25, effective August 4, 2025. Legislation enacted after that date may not yet be incorporated, so for very recent changes it is worth checking directly with the county.
The Baltimore County Zoning Regulations are published as a separate companion document, also through Municode. If your question is about what can be built where, you probably need the zoning regulations rather than, or in addition to, the main code. The county’s Department of Law maintains a landing page linking to both documents along with the separately adopted building code, which follows the 2021 editions of the International Building, Residential, Mechanical, and Energy Conservation Codes with local amendments.
Printed copies are available at Baltimore County Public Library branches and the Circuit Court Law Library. The content is the same, but print may lag behind the online version between supplements.
How Code Citations Are Numbered
The code is divided into numbered Articles, each covering a distinct area of county governance. Within each Article, laws are organized by Title and then Section. Citations follow a consistent pattern: Article, Title, Section. So § 12-2-201 points to Article 12, Title 2, Section 201 — the provision requiring dog and cat licensing. Once that logic clicks, finding a specific rule is straightforward.
A few Articles come up repeatedly for residents:
- Article 3 — county administration
- Article 12 — animal control
- Article 17 — miscellaneous provisions and offenses, including noise
- Article 21 — permits, licenses, and business regulation
- Article 35 — property maintenance standards
Pet Licensing Under Article 12
All dogs and cats in the county must be licensed once they reach four months of age, and owners must provide proof of a current rabies vaccination to obtain or renew that license. The rabies vaccination requirement also extends to ferrets.
Licensing is handled through Animal Services, and applications can be submitted online or in person. The code allows a 30-day grace period after you establish county residency, get a new pet, or the animal turns four months old before late penalties apply.
Most Article 12 violations are civil rather than criminal. A first violation carries a $30 penalty; repeat violations jump to $150. Failing to license a dog or cat specifically carries a $100 penalty. Each day a violation continues counts as a separate offense, so unaddressed notices can escalate fast.
Noise Rules Under Article 17
Noise complaints fall under Article 17, Title 3, which targets “domestic noise” — sound from human activity that does not involve commercial machinery, including music, voices, radios, and household tools. The standard is subjective rather than decibel-based: the code prohibits noise that unreasonably disturbs the peace, quiet, and comfort of neighboring residents.
Enforcement starts with a police investigation. If an officer confirms a violation, they file a written report, and police can then pursue either a criminal charge or a civil citation. A criminal first offense carries a fine of up to $500, up to 90 days in jail, or both. Repeat offenders face a minimum $500 fine. The civil alternative is a citation with a penalty of up to $500.
Landlords face a separate layer of accountability. If police file more than three written reports at a single address within 60 days, officers can issue civil citations directly to the property owner or landlord, even if the landlord was not the one making the noise.
Building Permits and Development Impact Fees
Construction and significant modifications require a permit from the Department of Permits, Approvals and Inspections (PAI). Fees vary by project scope:
- One-family or two-family residential building permit: $208
- Deck under 600 square feet: $85; over 600 square feet: $119
- Addition under 600 square feet: $85; larger or second-floor addition: $130
- Accessory structure (such as a shed) up to 1,000 square feet: $85; above that: $130
New residential development may also trigger a development impact fee of $6 per square foot based on the total enclosed area of the proposed residence. On a 2,000-square-foot home, that adds $12,000 on top of the base permit fee. First-time builders often miss this one, so plan for it early.
Before you buy property with development plans, check the zoning designation through PAI’s Zoning Review Bureau. Residential, commercial, manufacturing, and mixed-use zones each carry different restrictions on building height, lot coverage, setbacks, and permitted activities.
Property Maintenance Under Article 35
Article 35 sets minimum maintenance standards for existing buildings. Owners are responsible for exterior conditions including roofing, siding, windows, porches, and foundations. The standards generally align with the International Property Maintenance Code: exterior surfaces must be kept weatherproof, free from holes and rot, and properly coated to prevent decay.
The rules also cover basic sanitation. Properties must be kept free from conditions that attract rodents or create health hazards, and overgrown vegetation that could harbor pests or pose fire risks must be addressed. The county can order remediation when a property falls below these standards.
If You Get a Code Violation Notice
Enforcement usually starts when an inspector identifies a violation, often in response to a complaint. The first step is typically a correction notice describing the problem and setting a compliance date. How much time you get depends on the specific code provision involved; the county does not use a single uniform deadline across all violation types.
If you miss the compliance date, the county can escalate to a formal civil citation. Penalties accrue per day, and the daily rate depends on which part of the code was violated. Violations of Article 17, Title 4, for example, carry a civil penalty of $500 per day. Other provisions may carry lower daily rates. In some cases the county will do the necessary work itself and bill the property owner.
You can contest a citation at a quasi-judicial hearing before an Administrative Law Judge. Hearings can sometimes be scheduled immediately at the site of the violation by the inspector. If the judge finds a violation occurred, the judge issues an order for payment of fines.
If you disagree with the outcome, you can appeal to the county Board of Appeals, established under Article VI of the Baltimore County Charter. Appeals must be filed in writing within 30 days of the final action being challenged. The Board operates under its own rules of practice and procedure, and its jurisdiction is limited to matters where it has statutory authority to hear appeals.
Federal Rules That Sit on Top of the Code
Complying with the county code is not always the end of the story. Two federal regimes commonly overlap with local requirements.
Title II of the Americans with Disabilities Act requires state and local government facilities and programs to be accessible to individuals with disabilities. Newly designed, constructed, or altered county facilities must meet enforceable accessibility standards consistent with guidelines from the Architectural and Transportation Barriers Compliance Board. For existing facilities, the county must ensure “program accessibility,” meaning people with disabilities can participate in county services even if every building is not fully retrofitted.
Rental properties participating in the Housing Choice Voucher (Section 8) program must pass inspections under federal Housing Quality Standards. Inspectors check for functional smoke detectors, adequate electrical systems, working plumbing, kitchen appliances including a stove and refrigerator, and structural soundness of foundations, stairs, and roofs. All painted surfaces must be free of deteriorated paint, a lead-based paint safety measure. These federal standards often overlap with Article 35, but a property can comply with one and fail the other, so landlords accepting vouchers need to meet both.