FEMA flood zone rules in Vienna, VA — also called floodplain regulations or special flood hazard area (SFHA) rules — determine flood insurance requirements and elevation standards for new construction.
Vienna regulates development in Special Flood Hazard Areas under Town Code Chapter 18.1 (Floodplain Ordinance), administered through Public Works in compliance with FEMA's National Flood Insurance Program.
Chapter 18.1 of the Vienna Town Code is the Floodplain Ordinance, adopted to maintain NFIP eligibility and regulate construction in zones along Accotink Creek and the Difficult Run watershed. The ordinance applies to areas mapped as Special Flood Hazard Areas (SFHA) on FEMA Flood Insurance Rate Maps for Fairfax County. Development in the SFHA requires a floodplain development permit, structures must be elevated to or above the Base Flood Elevation, and substantial improvements (work exceeding 50% of market value) trigger full code compliance for the entire structure. Floodway encroachments that cause any rise in flood elevations are prohibited. Vienna's authority is grounded in Va. Code §15.2-2280 (zoning) and §10.1-603.2 (flood prevention).
Unpermitted development in the SFHA, fill in the floodway, or non-compliant construction violates Chapter 18.1 and may result in stop-work orders, civil penalties, mandatory removal, and loss of NFIP flood insurance eligibility.
Vienna, VA
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Vienna, VA
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Side-by-side rule comparisons with other cities in Fairfax County.
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See how Vienna's flood zones rules stack up against other locations.
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