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Maryland ADU Guide

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Gijo John

Gijo John is the founder and research editor of Maryland ADU Guide. He independently researches Maryland accessory dwelling unit laws, ordinances, permit processes and homeowner planning issues using primary sources such as Maryland statutes, state guidance, county and municipal codes, official meeting records, permit documents and fee schedules. His work focuses on comparing statewide requirements with local implementation, documenting unresolved conflicts, and turning technical material into practical homeowner checklists, tools and decision guides. Gijo is not a Maryland contractor, architect, engineer, attorney or government official, and the site does not present him as one.

Maryland ADU Permits to Completion: A Homeowner’s Step-by-Step Guide

Updated September 27, 2026 by Gijo John

Move from ADU plans and applications through review comments, construction inspections, final approvals and handover—with local requirements clearly separated.

Categories Zoning & Regulations

North Beach ADU Rules 2026: 800-Sq-Ft Cap, Parking & HB 1466 Transition

Updated September 15, 2026 by Gijo John

North Beach has its own municipal accessory-apartment rules. See the current 5,000-sq-ft lot minimum, 800-sq-ft detached cap, parking and owner-occupancy rules, the Calvert County permit split, and the 2026 HB 1466 transition.

Categories Zoning & Regulations

Laurel ADU Rules 2026: Ordinance 2057 Adopted & City Zoning

Updated October 10, 2026 by Gijo John

Laurel is actively creating its own ADU rules through Ordinance 2057 / Text Amendment 270. See the September 15, 2026 Planning Commission hearing, current city zoning authority, permit path, and what homeowners should verify before relying on proposed rules.

Categories Uncategorized

Takoma Park ADU Rules 2026: Montgomery County Zoning, City Permits & Rental Licensing

Updated October 10, 2026 by Gijo John

Takoma Park does not have its own ADU zoning. Montgomery County controls zoning and building review, while the City adds municipality-letter, tree, stormwater, historic-district and rental-licensing requirements.

Categories Zoning & Regulations

Gaithersburg ADU Rules 2026: 49% Size Cap, Parking, Setbacks & HB 1466 Conflict

Updated September 15, 2026 by Gijo John

Gaithersburg has its own ADU zoning rules separate from Montgomery County. See the current 49% attached-unit cap, detached limits, parking, setbacks, short-term-rental ban and 2026 HB 1466 conflict.

Categories Zoning & Regulations

Rockville ADU Rules 2026: 75% Size Rule, No Parking Requirement & Owner Occupancy

Updated September 15, 2026 by Gijo John

Rockville has its own ADU rules separate from Montgomery County. See the 75% size rule, owner-occupancy requirement, no-parking rule, detached ADU standards, permits and rental licensing.

Categories Uncategorized

Allegany County ADU Rules 2026: Accessory Apartments, Zoning Split & HB 1466 Transition

Updated September 22, 2026 by Gijo John

Allegany County’s current zoning code separates residential accessory apartments from commercial/industrial accessory dwelling units. See what applies now, why HB 1466 creates a 2026 transition, and what homeowners should verify before planning an ADU.

Categories Zoning & Regulations

Kent County ADU Rules 2026: Current Rules, Owner Occupancy, Parking & Town Exceptions

Updated October 10, 2026 by Gijo John

Kent County’s current ADU framework allows one accessory dwelling in several County zoning districts. See owner-occupancy, parking, rental, permit and town-jurisdiction rules, plus the remaining HB 1466 parking question.

Categories Zoning & Regulations

Garrett County ADU Rules 2026: No Countywide Zoning, Deep Creek Rules & HB 1466 Transition

Updated September 22, 2026 by Gijo John

Garrett County is unique in Maryland because it has no countywide zoning. Learn what applies outside zoned areas, what changes in the Deep Creek Watershed and incorporated towns, and what HB 1466 means for 2026 ADU planning.

Categories Zoning & Regulations

Dorchester County ADU Rules 2026: 800-Sq-Ft Cap, Owner Occupancy, Parking & HB 1466 Conflict

Updated September 22, 2026 by Gijo John

Dorchester County still publishes a legacy accessory-apartment framework with an 800-sq-ft/one-third size cap, owner occupancy and one extra parking space. See how those rules compare with Maryland HB 1466, plus septic, floodplain and Cambridge jurisdiction checks.

Categories Zoning & Regulations
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