The Loudoun County Transportation and Land Use Committee convened on July 28, 2025, to discuss several pressing issues related to data centers, noise regulations, and emissions in the region. The meeting focused on the evolving landscape of data center development and its implications for local communities.

The session began with a discussion on a new ownership model for data centers, where developers can sell three-dimensional space within buildings, akin to condominium ownership. This model has prompted staff to research its implications further, as it represents a shift in how data centers may operate within the county.

A significant portion of the meeting was dedicated to addressing noise concerns associated with data centers. Committee members expressed the need to update existing noise standards, particularly regarding tonal noise, which has been a recurring issue raised by residents. Staff indicated that they would explore the possibility of creating specific regulations for data centers, as current ordinances do not adequately address the unique noise challenges posed by these facilities.

Emissions from data centers were another critical topic. Recent analyses revealed that Loudoun County has experienced a substantial increase in emissions, particularly from data centers, which have more than doubled from 2020 to 2023. The committee emphasized the importance of understanding the sources of these emissions, especially from diesel generators, and discussed the need for a comprehensive approach to air quality and emissions regulation.

The committee also considered the potential requirement for data centers of a certain size to have on-site substations to mitigate the impact of increased energy demands. This proposal aims to reduce the need for additional transmission lines and ensure that energy infrastructure is adequately supported.

In terms of setbacks from residential areas, there was a proposal to increase the required distance from 200 feet to 500 feet for new data centers. This change aims to address community concerns about noise and emissions, although questions remain about how existing data centers would be affected by such a regulation.

The meeting concluded with a commitment from staff to further investigate these issues and report back to the committee with recommendations. The discussions highlighted the ongoing challenges and considerations surrounding data center development in Loudoun County, particularly as the region seeks to balance economic growth with community well-being and environmental sustainability.