Spring Valley Technology Park Data Center Evergreen Mills Leesburg VA 3.5M sqft

Status: Proposed / Rezoning Application Active (Planning Commission Recommended Denial)   |   Location: 22532 Evergreen Mills Road, Leesburg, VA 20175, USA

Project Overview

The Spring Valley Technology Park Data Center, submitted under Loudoun County Application Reference LEGI-2024-0074, is a proposed mega-hyperscale data center campus planned on an approximately 325- to 362-acre site centered around 22532 Evergreen Mills Road, Leesburg, Virginia 20175, USA. Developed by Active Infrastructure, the project seeks a Zoning Map Amendment (ZMA) within Loudoun County's Transition Policy Area (TPA) to enable the development of up to approximately 3.5 million square feet of high-density data center space. The scale of the proposal would make it a significant addition to the Northern Virginia data center market, one of the world's largest concentrations of digital infrastructure. The development has been designed with an alternative power strategy intended to address regional transmission and grid-capacity constraints that can limit the delivery of electricity to large new data center campuses. A central element of the proposal is an on-site microgrid incorporating low-emissions, combustion-free natural gas-powered hydrogen fuel cells, which would provide dedicated electricity generation without relying exclusively on conventional regional transmission infrastructure. The planned campus also incorporates extensive land preservation and environmental buffers, with approximately 60% of the overall site proposed to remain as open space. For facility cooling, the project is designed around a 100% air-cooled dry system, avoiding the substantial water consumption associated with evaporative cooling systems. Despite these design measures, the proposal has generated significant community and political opposition, particularly because of its proximity to the Goose Creek watershed and concerns surrounding environmental impacts, infrastructure, land-use changes, and the broader effects of large-scale data center development in the area. The controversy has affected the project's planning process, with the Loudoun County Planning Commission recommending denial of the application. If approved, the Spring Valley Technology Park would represent a major expansion of Loudoun County's hyperscale data center pipeline, while its proposed microgrid and large open-space component would make it a notable example of developers attempting to address power availability and environmental considerations within a constrained data center market.

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