Loudoun County, VA Environmental Rules: Erosion Control (2026)
Key Facts
- Governing chapter
- Codified Ordinances Ch. 1096 (VESMP)
- Small-project trigger
- Any disturbance under 5,000 sq ft needs a permit
- Full VESMP trigger
- One acre or more of disturbance
- Administrator
- Dept. of Building and Development Director
- First-offense penalty (≥1 acre)
- $2,500 civil penalty
- Repeat-offense penalty (≥1 acre)
- $5,000 civil penalty
- Small-lot guarantee waiver
- Under 10,000 sq ft, single-family home
Summary
Any land-disturbing activity in Loudoun County needs a Land Disturbance Permit and an approved Erosion and Sediment Control Plan before work starts, with a full VESMP stormwater permit added once disturbance reaches an acre. The Department of Building and Development administers the program and can assess civil penalties up to $5,000 per repeat offense.
Land-disturbing activity shall not be commenced unless and until the following have been met: 1. For land-disturbing activity that disturbs less than 5,000 square feet, for which a Land Disturbance Permit is required pursuant to the Loudoun County Zoning Ordinance... Approval of a Land Disturbance Permit... and Approval of an ESC Plan... 3. For land-disturbing activity that disturbs one acre or more of land... Approval of a VESMP Permit application... and Approval of a SWM Plan.
Full Breakdown
01(e)(1). 01(e)(2)(A) sets three disturbance tiers before work may begin: for activity disturbing less than 5,000 square feet requiring a Land Disturbance Permit under the Zoning Ordinance, the owner must secure Land Disturbance Permit approval and either an approved Erosion and Sediment Control (ESC) Plan or an executed Agreement in Lieu of one; the same two approvals apply between 5,000 square feet and one acre when the project isn't part of a larger common plan of development; and at one acre or more, or between 5,000 square feet and an acre if part of a larger common plan reaching an acre, the owner additionally needs an approved VESMP Permit application and an approved Stormwater Management Plan or lieu agreement.
03. c for disturbances under 10,000 square feet tied to a single-family detached home or accessory structure. 01(c)(2), must either adopt their own VESMP or enter an agreement to fall under the County's program.
Violations & Fines
Section 1096.04(D) sets tiered civil penalties: land disturbance of one acre or more (or part of a common plan reaching an acre) draws $2,500 for a first offense and $5,000 for each subsequent offense, covering failures such as starting work without an approved SWM Plan, an incomplete SWPPP, or failing required inspections. Smaller disturbances of 5,000 square feet up to an acre draw $2,000 first-offense/$4,000 repeat-offense penalties, capped at $50,000 cumulative per violation, for starting work without an approved ESC Plan or Land Disturbance Permit, disobeying a Stop Work Order, or failing to maintain erosion controls.
Frequently Asked Questions
Do I need a permit to grade my Loudoun County lot before building a house?
At what point does my project need a full stormwater permit, not just an erosion plan?
What happens if I start grading without the required permit?
Can I skip the financial guarantee for a small residential lot?
Sources & Official References
Other rules in Loudoun County
Compare Loudoun County to another location·View the Virginia environmental rules overview
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