Grading & Drainage: Gaithersburg vs Takoma Park
How do grading & drainage rules compare between Gaithersburg, MD and Takoma Park, MD?
Gaithersburg and Takoma Park have similar restriction levels.
Gaithersburg, MD
Montgomery County
Gaithersburg requires grading permits for land-disturbing activities and enforces drainage standards to protect adjacent properties and waterways. Grading must maintain positive drainage away from structures and must not redirect stormwater onto neighboring properties. Montgomery County reviews grading plans in coordination with the city for projects meeting disturbance thresholds.
View full Gaithersburg rules →Takoma Park, MD
Montgomery County
Grading permits are required in Takoma Park through Montgomery County for earth-moving activities that alter existing drainage patterns. Projects must demonstrate that post-construction drainage does not increase runoff onto neighboring properties. Montgomery County regulates grading under Chapter 19 and requires both grading plans and stormwater management for significant earth disturbance.
View full Takoma Park rules →Key Facts Comparison
| Fact | Gaithersburg | Takoma Park |
|---|---|---|
| Grading Permit | Required for drainage changes | - |
| Foundation Slope | 6 inches in first 10 feet | - |
| Retaining Wall Permit | Over 4 feet height | - |
| Public Works | (301) 258-6370 | 301-891-7633 |
| Building Division | (301) 258-6330 | - |
| Permit Required | - | For grade-altering work |
| Plan Trigger | - | 5,000+ sq ft disturbance |
| Key Rule | - | No increased runoff to neighbors |
| WSSC | - | Manages public storm drains |
Highlighted rows indicate differences between cities.
Gaithersburg FAQ
Do I need a grading permit in Gaithersburg?
A grading permit is required for land disturbances that change drainage patterns, involve significant cut or fill, or meet the 5,000-square-foot disturbance threshold. Contact the Building Division at (301) 258-6330.
Can my neighbor's grading cause water to flow onto my property?
No. Grading must not redirect stormwater onto neighboring properties. If a neighbor's work has changed drainage patterns affecting your property, contact Public Works at (301) 258-6370 to file a complaint.
What slope is required around foundations?
Finished grade must slope at least 6 inches downward in the first 10 feet from the foundation to ensure positive drainage away from the structure.
Takoma Park FAQ
Do I need a grading permit in Takoma Park?
Yes, for any earth-disturbing activity that alters the existing grade or drainage pattern. Projects over 5,000 square feet require a formal grading plan by a licensed engineer.
Can I redirect drainage from my property?
You cannot redirect drainage in a way that increases runoff onto neighboring properties. Post-construction drainage must not adversely affect adjacent lots.
Who do I contact about a drainage problem?
Contact Takoma Park Public Works at 301-891-7633 for city infrastructure issues or Montgomery County DPS at 240-777-0311 for drainage problems caused by neighboring development.
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