How Alexandria Handles Environmental Rules: A Practical Guide

Alexandria maintains 116 local ordinances across all categories, and 4 of those deal specifically with environmental rules. Here is a breakdown of what the city actually requires, what is prohibited, and where Alexandria falls on the strict-to-permissive spectrum compared to other cities.

Stormwater Management

Every parcel in Alexandria pays an annual stormwater utility fee tied to impervious surface area under City Code Article C, billed twice a year with the real estate tax bill. Single-family homes are charged 1.0 billing unit (2,062 square feet of impervious area), rising to 1.67 units for large lots, funding drainage, flood mitigation and water-quality work citywide.

Key details: Billing unit: 2,062 sq ft of impervious area. Single-family rate: 1.0 billing unit. Large SFR rate (>2,800 sf): 1.67 billing units. Current rate: $340.30 per unit (Nov. 2025 bill). Billing: Twice yearly with real estate tax.

An unpaid stormwater utility fee becomes delinquent on the same date as the real estate tax bill and, under Sec. 5-6-237, draws the same penalty and interest the city applies to late real estate taxes, at the legal rate set by Va. Code § 6.2-301(A). Delinquent fees, penalties and interest become a lien on the property that ranks equally with unpaid tax liens and are collected the same way as delinquent real estate taxes.

Erosion Control

Alexandria requires an approved erosion and sediment control plan before anyone builds, alters a building's footprint, or clears, grades, excavates, fills or strips topsoil on land in the city. The Department of Transportation and Environmental Services administers the program under City Code Title 5, Chapter 4.

Key details: Governing sections: City Code Secs. 5-4-1.1 to 5-4-18. Small-disturbance exemption: Under 2,500 sq ft, grade under 10%. Plan validity: Expires 180 days after approval. First civil penalty: $500, then $1,000 per repeat. Penalty cap: $3,000 total per 10-day period.

Violations trigger both an administrative stop-work process and civil penalties. Under Sec. 5-4-14, the director first issues a verbal notice to the responsible contractor and follows with written notice to comply by certified mail; if no action is taken within 48 hours, the director sends a letter of intent to draw on the performance bond or cash escrow. Under Sec. 5-4-14.1, a civil penalty of $500 applies to a person's first violation and $1,000 to each subsequent violation of the same provision, with each day a separate violation, though a series of violations from the same facts cannot be penalized more than once per ten-day period and civil penalties cannot exceed $3,000 total. The city may also seek an injunction restraining the violation in circuit court under Sec. 5-4-14.1(b).

Flood Zones

Alexandria regulates the Potomac River and Cameron Run floodplain through Section 6-300 of the Zoning Ordinance, which creates a Floodway District and an AE/AH Special Flood Hazard Area based on FEMA's January 11, 2024 flood maps. Within the mapped floodway, new construction, fill, and substantial improvements are barred unless an engineer certifies zero rise in flood levels.

Key details: Governing map: FEMA FIRM/FIS dated Jan. 11, 2024. Floodway District rule: No-rise certification required for any encroachment. Manufactured homes: Prohibited in the Floodway District. Administering agency: Dept. of Transportation & Environmental Services. Legal authority: Va. Code § 15.2-2280.

Building, filling, or substantially improving property in the SFHA without meeting Section 6-300's floodway or elevation standards is a zoning violation. Alexandria's floodplain administrator, housed in the Department of Transportation and Environmental Services, can deny or revoke permits, require corrective floodproofing or removal of noncompliant work, and refer the property for civil zoning enforcement; noncompliant structures also risk losing National Flood Insurance Program eligibility for the parcel.

This is not one of those rules that cities tend to ignore. Alexandria actively enforces its flood zones requirements.

Flood Elevation Requirements

Any new home or substantial improvement in Alexandria's mapped AE or AH flood zones must have its lowest floor, including the basement, elevated to at least one foot above the base flood elevation. Section 6-307(A) sets that one-foot freeboard for residential construction, and a matching standard applies to commercial and mixed-use buildings.

Key details: Freeboard requirement: Base flood elevation + 1 foot. Applies to: New construction & substantial improvements in A/AE/AH zones. Non-residential alternative: Dry floodproofing with engineer certification. Flood Design Class 4: BFE+1ft or 0.2% chance elevation, whichever higher. Mechanical equipment: Must sit at/above BFE + 1 foot (§ 6-306(E)).

Issuing or relying on a building permit without the required base-flood-elevation-plus-one-foot freeboard violates Section 6-307. Alexandria's floodplain administrator can withhold a certificate of occupancy, require an elevation certificate before final approval, and order retrofits, additional fill, or dry-floodproofing before a noncompliant structure may be occupied; the city also maintains elevation certifications on file as a condition of the property's ongoing eligibility in the National Flood Insurance Program.

The Bottom Line

Alexandria's environmental rules rules are a mixed bag. Some areas are strict, others are relaxed, and the details matter. The best approach is to check the specific rule that applies to your situation rather than assuming Alexandria is broadly strict or permissive.

These rules come from Alexandria's publicly available municipal code. For complete penalty schedules, exemption details, and answers to common questions, see the individual ordinance pages throughout this guide.