Brewer Promoted to Head of Building and Development

Alan Brewer will be the new director of the Loudoun County Department of Building and Development, County Administrator Tim Hemstreet has announced.

Brewer’s appointment is effective Sept. 18. He will replace Mike Seigfried, who is retiring after more than 30 years of service with Loudoun County.

Brewer has more than 30 years of experience in the public and private sectors—the past 19 years in Loudoun County. He currently serves as assistant director for public works and environmental services in the Loudoun County Department of General Services.

His previous positions with the county include managing water, energy and environmental programs. Brewer also served as a policy administrator for Loudoun County and environmental health manager for the Virginia Department of Health in Loudoun. Prior to joining Loudoun County, Brewer worked for the Virginia Department of Health in Clarke County, and began his career as a private land and soil consultant.

“Mr. Brewer stood out among an outstanding pool of applicants for this position,” Hemstreet stated. “His extensive regulatory experience in Virginia, knowledge of environmental policy, and strong history as a leader in Loudoun County have prepared him for this role and I am confident he will continue Building and Development’s success.”

Brewer will oversee approximately 200 employees and a $22 million budget.

As director of the Department of Building & Development, Brewer will be responsible for enforcing construction-related codified ordinances. The department also enforces best engineering practices, statewide building codes during design and construction, approves plans, conducts a broad range of inspections, and issues building, zoning, and grading permits. The department is also responsible for managing construction sites through the Erosion and Sediment Control Enforcement Program and managing public improvements through bonding, proffers and water resources programs.

Brewer holds a bachelor’s degree in science from Pennsylvania State University, a master’s degree in environmental biology from Hood College, and a graduate certificate in local government management from Virginia Tech.

More information about the Department of Building and Development is online at

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