Data centers in Fairfax County, Virginia

Public hearing advertised on a zoning ordinance amendment aligning with state law that took effect Jul 1, 2026 (HB 153/SB 94): data center rezoning and special exception applications must include a noise study and the anticipated megawatts; for facilities expected to need 100 MW or more, also a sound profile for homes and schools within 500 feet and a utility statement on serving substations and transmission voltage (Fairfax County agenda and Board memo). [Unverified: the hearing outcome was not confirmed.]

Board unanimously directed staff to stay engaged with the Spanberger administration on state data center rules, focusing on community benefit plans, communication with residents and energy affordability, with a report back within 120 days (FFXnow).

DEQ's list of issued air permits for data centers shows registration 74332-2 (Article 6 - mNSR) issued 2026-07-31 to Herndon Technology Partners LLC in Fairfax County. The list gives no project size or status; the entry says nothing about whether the facility is built.

DEQ's list of issued air permits for data centers shows registration 74239-2 (Article 6 - mNSR) issued 2026-07-29 to Amazon Data Services Inc - IAD-134/135/136 in Fairfax County. The list gives no project size or status; the entry says nothing about whether the facility is built.

DEQ's list of issued air permits for data centers shows registration 74336-1 (Article 6 - mNSR) issued 2026-05-22 to Word of Grace Data Center in Fairfax County. The list gives no project size or status; the entry says nothing about whether the facility is built.

DEQ's list of issued air permits for data centers shows registration 72375-9 (Article 6 - mNSR) issued 2026-03-10 to Chantilly Technology Partners, LLC/H5 VA in Fairfax County. The list gives no project size or status; the entry says nothing about whether the facility is built.

DEQ's list of issued air permits for data centers shows registration 74331-1 (Article 6 - mNSR) issued 2026-03-04 to Westfax Property Owner A LP/Westfax 4-5A in Fairfax County. The list gives no project size or status; the entry says nothing about whether the facility is built.

DEQ's list of issued air permits for data centers shows registration 74154-5 (Article 6 - mNSR) issued 2026-03-02 to Aerospace Data Facility - East in Fairfax County. The list gives no project size or status; the entry says nothing about whether the facility is built.

In September 2024 the Board adopted tighter restrictions on by-right data center development (size limits and minimum distances from residential properties) that did not apply to projects already under review (FFXnow, Oct 28, 2026). Exact day not stated; shown as the first of the month.