June 26, 2026

LAND DEVELOPMENT SERVICES

Letters to Industry

Pro Rata Share Assessment Rate and Credit Changes

Effective July 1, 2026, the countywide Stormwater Pro Rata Share Assessment rate changes from $27,914.41 to $28,735.04 per increase in impervious acre; the maximum water quality credit increases from 62% to 62.1%; and the maximum water quantity credit decreases from 38% to 37.9%.

These revenues, collected during the development process and combined countywide, pay for the drainage infrastructure necessary to reduce harm to receiving waters in Fairfax County, the Potomac River, and the Chesapeake Bay. The revenue also supports ongoing maintenance of existing county stormwater systems and restoration of flood damaged infrastructure.

The county determines the Pro Rata Share assessment for each individual development project as a proportion of the total estimated cost of the drainage improvement program. The assessment is based on the stormwater impact of the project measured by its increase in impervious cover discounted by any applicable credit for on-site stormwater management facilities and best management practices provided as part of the new construction.

Once collected, the assessment fees will be allocated to the Fairfax County Department of Public Works and Environmental Services for the program. Learn more about typical community improvement projects supported by funding from the Pro Rata Assessment fee and other funding sources by visiting the Stormwater Management page.

For more information on Pro Rata Share Assessment, refer to Public Facilities Manual (PFM) § 6-0600.

If you have any questions, please contact Site Services at 703‑222-0801, TTY 711.

June 26, 2026

LAND DEVELOPMENT SERVICES

Letters to Industry

Virginia Adopts New Statewide Minimum Off-Street Parking Requirements Effective July 1, 2026

New statewide minimum off-street parking requirements take effect beginning July 1, 2026. The legislation, identified as House Bill No. 888 (HB 888) creates a new statute, §15.2‑2209.4, that establishes minimum off-street parking requirements for residential, multifamily, and mixed-use development within a designated area.

A “designated area” means “any parcel located within one-half mile of the entrance to a mass transit or public transportation station or facility.” A mass transit or public transportation station or facility is a building or enhanced structure where the public boards or disembarks from mass transit or public transportation. Within such an area, minimum off-street parking may not exceed the following:

1. One-half of one parking space per dwelling unit for multifamily or mixed-use residential development; and
2. One parking space per dwelling unit for one-family and two-family dwellings and townhouses.

In addition to establishing these statewide limits on minimum parking requirements, §15.2‑2209.4 requires localities with a population greater than 20,000 residents to adopt an administrative review process in which developers may ask to reduce minimum off-street parking requirements for residential, multifamily, and mixed-use development proposed on parcels not located within a Designated Area. This process must allow at least a 20 percent reduction in parking when the criteria and procedures established by the locality are met.

Land Development Services (LDS) and Department of Planning and Development staff are currently drafting language to incorporate the requirements of HB 888 into the Fairfax County Zoning Ordinance. Staff anticipate the scheduling of public hearings on a Zoning Ordinance amendment to address HB 888 and other recently adopted legislation in October 2026.

If you have any questions, please contact Michael Davis, Parking Policy Specialist, in the Site Development and Inspections Division, LDS, at 703-324-3065, TTY 711.

June 26, 2026

LAND DEVELOPMENT SERVICES

Letters to Industry

LDS Closed July 3

Fairfax County Government, including Land Development Services (LDS), will be closed on Friday, July 3 for Independence Day.

The Planning and Land Use System (PLUS) will remain accessible to customers, but staff will not be available to respond to questions in person or via phone or email.

June 25, 2026

LAND DEVELOPMENT SERVICES

Letters to Industry

Planning and Land Use System (PLUS) Staff Users Experiencing Operational Issues

Due to technical difficulties, Planning and Land Use System (PLUS) staff users are experiencing issues accessing the system. This impacts inspections, permitting, plan review, and payment processing. Inspectors may be delayed in providing inspections scheduled for today. We are diligently working to resolve the issues and will post an update once available.