Loudoun County Board rejects data center near archeological sites and capacity constraints

During the Loudoun County Board of Supervisors Business Meeting on July 1, 2025, significant discussions centered around the potential construction of a new electrical substation and its implications for local development, particularly concerning data centers. The meeting highlighted the pressing need for additional power infrastructure in the area, as existing substations are reportedly at capacity. This situation raises critical questions about future development, especially for data centers that require substantial power supply.

One of the key points raised was whether the Federal Aviation Administration (FAA) would need to review any new substation and transmission line if they interfered with airport traffic areas. It was clarified that if the proposed infrastructure conflicted with airspace regulations, it would need to be relocated or rerouted, emphasizing the complexities involved in planning such developments.

The discussion also touched on the possibility of "proffering out" a substation for future needs. Board members expressed concerns about the implications of denying a substation application, particularly if a data center were built without adequate power supply. Such a scenario could leave the facility unusable, highlighting the interconnectedness of infrastructure planning and economic development.

Additionally, the meeting addressed concerns regarding archaeological sites in the area. Board members sought clarity on the potential historical significance of these sites and the necessity for further archaeological evaluations if development encroached upon them. The importance of preserving historical sites while accommodating growth was underscored.

Another significant topic was the potential rezoning of land from residential to data center use. The board discussed the implications of allowing buildings up to 60 feet tall, which conflicts with existing policies that recommend a maximum height of four stories. This raised concerns about the appropriateness of data centers as a core use in the Joint Land Management Area (JLMA) 20, which is intended for limited residential development.

As the meeting concluded, the board faced a decision on whether to approve the application for the data center, with some members expressing strong opposition based on the findings that the proposal did not align with the county's general plan. The discussions highlighted the ongoing tension between economic development and community concerns, particularly regarding infrastructure capacity and historical preservation.

In summary, the Loudoun County Board of Supervisors is grappling with critical decisions that will shape the region's development landscape. The outcomes of these discussions will have lasting implications for the community, balancing the need for economic growth with the preservation of local heritage and infrastructure integrity.