Baltimore requires grading permits for earthwork and drainage modifications under the City Code, with plans reviewed by the Department of Public Works to prevent erosion, flooding, and damage to adjacent properties.
A grading permit is required before any grading, filling, or excavation that alters the natural drainage pattern of land. The Department of Public Works reviews grading plans to ensure proper drainage, slope stability, and protection of adjacent properties. Grading must not divert water onto neighboring properties or public rights-of-way. Final grade must provide positive drainage away from structures. Retaining walls over 4 feet in height require structural engineering plans. All grading activities must comply with erosion and sediment control requirements.
Grading without a permit can result in stop-work orders, fines, and requirements to restore the site to its original condition. Property owners are liable for damage caused to adjacent properties by improper grading or drainage alterations.
Baltimore, MD
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