Maryland · MDCoverage expanding
Maryland residential & ADU permit data
Local zoning in the busy Mid-Atlantic
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Housing law
Accessory dwelling units in Maryland are regulated locally; there is no statewide ADU mandate, so rules vary by city and county.
Maryland has no statewide upzoning law; residential density is set by local zoning, with several counties pursuing their own reforms.
Local zoning (no statewide mandate)
Major permit jurisdictions
Baltimore
Why Igni for Maryland
A dense Mid-Atlantic market anchored by Baltimore and the D.C. suburbs
Local-first permit intelligence across counties and cities
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Permit data via municipal open-data portals and public records where available.
Informational only, not legal advice. Housing law changes — verify current statutes before relying on this.