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ADU permit rules in Maryland

Most cities start from the model building code (IRC) and change a number or two. An ADU is a dwelling. Every jurisdiction requires a building permit and a final inspection before anyone lives in it.

City rules below were each checked against the city’s own pages.

Cities we cover in Maryland

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Enter your address. If we haven’t verified your city yet, you’ll get the model code answer marked low confidence, plus your zoning and flood data where public maps have it.

What are you building?

All ADUs pages