Water Use Rules in Loudoun County, VA (2026)
2 rules for unincorporated Loudoun County, Virginia.
Verified from official government sources
Turf Replacement Rebates
When a development inside Loudoun County's Limestone Overlay District triggers mitigation under Zoning Ordinance § 5.05.L, the County can require builders to shrink lawn area and switch to xeriscape. Section 5.05.L.2.c lets the County order reductions in landscaped lawns and impervious coverage plus use of native, lower-water plant materials to protect karst groundwater.
Loudoun County Limestone District Turf Reduction Rule
Some RestrictionsLoudoun County, VA, Zoning Ordinance § 5.05.L.2.c (Mitigation Measures for the LOD — Landscaping and Reductions in Impervious Surface Coverage)
Landscaping and Reductions in Impervious Surface Coverage. The County may require: 1. Reductions in the maximum impervious surface coverage allowed; 2. Reductions in the area devoted to landscaped lawns; and 3. Use of xeriscape (i.e., use of native plant materials and landscape materials that have lower water and nutrient requirements).
Recycled Water Rules
In unincorporated Loudoun County, a Vehicle Wholesale Auction site must wash any vehicles on-site with recycled water rather than potable water, one of eight Site Development Criteria in Zoning Ordinance Section 4.04.22. The use also requires a 20-acre minimum lot, public sewer service, and operating hours limited to 8 a.m. to 6 p.m. on weekdays only.
Loudoun Vehicle Auction Recycled Water Rule
Some RestrictionsLoudoun County, VA, Zoning Ordinance § 4.04.22.C.3
Car washing associated with the use must use recycled water.
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