The Department of Homeland Security (DHS) Building refers to the headquarters and major facilities of the U.S. Department of Homeland Security in Washington, DC. DHS oversees critical national security operations including immigration, border security, cybersecurity, emergency management, and more.
Many people search for the DHS headquarters address, main phone number, visitor access procedures, and information about the different campuses such as the Nebraska Avenue Complex and the St. Elizabeths Campus.
This 2026 guide provides clear, practical details to help you contact DHS, understand visitor policies, and locate the main facilities.
Department of Homeland Security Building Contact Information 2026
- Main Operator Phone: (202) 282-8000
- Comment Line: (202) 282-8495
- Mailing Address (General): U.S. Department of Homeland Security, Washington, DC 20528
- One Key Headquarters Location: 3801 Nebraska Avenue NW, Washington, DC 20016 (Nebraska Avenue Complex)
- Another Key Location: 2707 Martin Luther King Jr. Ave SE, Washington, DC 20528 (St. Elizabeths Campus)
- Hours (General Inquiries): Monday–Friday, business hours (specific office hours vary by component)
Official Website: U.S. Department of Homeland Security (dhs.gov)
Visitor Information & Access 2026
DHS facilities are secure federal government buildings. Public access is limited and typically requires advance approval, appointments, or official business. Visitors must follow strict security screening procedures. For media inquiries or official visits, contact the appropriate DHS component or use the main operator line (202) 282-8000. Emergency situations should be reported to local law enforcement by calling 9-1-1.
DHS Major Facilities & Campuses
- Nebraska Avenue Complex (NAC): 3801 Nebraska Avenue NW, Washington, DC 20016 – One of the primary headquarters locations.
- St. Elizabeths Campus: 2707 Martin Luther King Jr. Ave SE, Washington, DC 20528 – A major consolidated headquarters campus.
- Additional component offices (FEMA, TSA, CBP, ICE, etc.) are located across the National Capital Region and nationwide.
DHS facilities management and construction projects are handled internally through the Department’s Office of the Chief Administrative Officer and procurement processes. Public building permits for DHS projects follow federal procedures rather than local municipal building departments.
Frequently Asked Questions
What is the main phone number for the Department of Homeland Security building?
The main operator number is (202) 282-8000.
Where is the DHS headquarters located?
DHS has multiple locations in Washington, DC, including the Nebraska Avenue Complex at 3801 Nebraska Avenue NW and the St. Elizabeths Campus at 2707 Martin Luther King Jr. Ave SE.
Can the public visit the Department of Homeland Security building?
Access is restricted to authorized personnel and approved visitors. Advance coordination is required. For emergencies, call 9-1-1.
How do I contact DHS for general inquiries?
Call the main operator at (202) 282-8000 or visit dhs.gov/contact-us for component-specific contacts.
Does the Department of Homeland Security handle its own building permits?
Yes. As a federal agency, DHS manages facilities and construction through internal processes and federal procurement rather than local municipal building departments.
Official Resources
Updated April 2026 using only official U.S. Department of Homeland Security sources. For emergencies, always call 9-1-1. Contact the main operator at (202) 282-8000 for general inquiries.
Khushboo Bobade is a public records researcher and editorial writer specializing in government service documentation and construction permit systems.
Her research focuses on explaining building permits, inspection procedures, zoning regulations, and public permit records maintained by local government building departments across the United States.
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