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Data Centres: Boom and Backlash
24SEP

Loudoun drafts a pause on data centres

1 min read
13:52UTC

Loudoun County's Board of Supervisors voted 7-1-1 to draft a 12-month halt on new data-centre rezonings, 18 months after it rejected a moratorium.

IndustryAssessed
Key takeaway

Loudoun's draft pause stops new rezonings, not the data centres the county has already approved.

Loudoun County's Board of Supervisors voted 7-1-1 on 16 September to direct staff to draft a 12-month pause on new rezoning and special-exception applications for data centres and substations⁠1. Rezoning changes what a piece of land may be used for; a special exception is a permit granted only after a public hearing. The pause is only a draft, and the Board votes on adopting it in October.

Loudoun, in Northern Virginia, holds 233 data centres, the densest cluster anywhere. The draft would run from 15 September and leaves already-permitted work, grid-reliability substations and applications close to their statutory deadlines outside it. About 35.7m sq ft of approved but unbuilt data-centre space is unaffected.

The county rejected a moratorium in March 2025 and kept approving rezonings case by case. Board Chair Phyllis Randall framed this pause as a bridge to the county's Phase 2 standards, due for adoption in December. On the draft's terms, the approved backlog keeps building through the year, so the halt governs which new sites join it rather than the construction already under way.

Deep Analysis

In plain English

Loudoun County, Virginia, is home to 233 data centres, the world's densest cluster. Its Board of Supervisors voted 7 to 1, with one abstention, to have staff draft a rule that would pause new data-centre and substation rezoning applications for 12 months. This is not yet law. The Board still has to vote again, in October, to actually adopt the pause. Until then, the county keeps approving projects under its existing rules.

Deep Analysis
Root Causes

Loudoun's board reached for a drafted pause rather than an outright moratorium partly because Virginia's Dillon Rule limits county power to what the state legislature has expressly granted, and an outright ban invites the kind of $100 million takings lawsuit RCM Hill filed against Hill County, Texas, which ended only after the county dropped its ban and the developer dismissed the case; a time-limited pause, voted on separately for adoption, builds a slower administrative record that is harder to strike down.

The county's own history compounds the caution: Loudoun rejected a moratorium in March 2025 and kept approving projects through its special-exception process, so this vote marks a reversal driven less by new legal room than by the accumulated volume of applications since.

First Reported In

Update #15 · Texas freezes data-centre permits

Energy News Beat· 24 Sept 2026
Read original
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