Carports in Anne Arundel County require a building permit and are subject to Article 18 accessory-structure setbacks. Detached carports must typically be set back 5 feet from side/rear lines; attached carports follow the primary dwelling setbacks.
Under Article 18 of the Anne Arundel County Code, a carport is an accessory structure requiring a building permit regardless of whether it is prefabricated or site-built. Detached carports on typical residential lots must observe a minimum 5-foot side and rear setback (larger in agricultural zones) and may not encroach on required front-yard setbacks. Attached carports follow the primary dwelling setbacks. Height is generally capped at 15 feet in R1/R5 zones. Maximum lot coverage by all accessory structures is typically 25% of the rear yard. Structures must be designed for the county's 115-mph ultimate design wind speed and 30 psf ground snow load, with anchoring per IRC. Metal prefab carports on concrete must be anchored with engineered wedge anchors, not just gravity weight. In the 1,000-foot Chesapeake Bay Critical Area, a carport adds impervious cover and may require mitigation. HOAs (Piney Orchard, Two Rivers, Crofton) often prohibit fabric carports.
Unpermitted carport: stop-work order, retroactive permit at double fee, and fines up to $1,000. Zoning setback violation: removal or variance. Critical Area impervious violation: 3:1 mitigation planting + penalty.
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Side-by-side rule comparisons with other cities in Anne Arundel County.
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