Dan Williams is a residential and a commercial real estate broker in Washington, DC, Maryland, and Northern Virginia. As an entrepreneur, he specializes in leasing executive office space in the Washington, DC, and luxury residential real estate. He works in the Fairfax Realty of Tysons, assisting buyers and sellers from throughout the nation and around the world. His technology skills, deep community knowledge, and real estate experience contribute to the continued success. He has been running the Capitol Hill Offices successfully since 1993.


Deeply integrated into the local business community, our office complex has become the first choice for members of Congress, lobbyists, nonprofits, law firms, and small private businesses. Our team provides complete and immediate office solutions: you can walk in, plug in, and start working. You can rest assured that the resources you need to give your business a competitive edge are available here at the Capitol Hill Offices.

Located on Pennsylvania Avenue next to the Library of Congress, only 1.5 blocks away from the Capitol South Metro Station, our office suites have all amenities of a large corporate office, including a handsomely appointed reception with professional reception services, common areas, a well-equipped conference room accommodating up to 35 people and a kitchen with tea, coffee and spring water. We offer a variety of different size private and fully furnished office spaces for rent and can accommodate the office needs of any size company - even virtual offices options are available.

All of our workspaces are equipped with state-of-the-art communication technologies, including high speed internet access, private phone system and voice messaging. As one of our clients, you'll appreciate the service of our friendly on-site management staff that is professionally trained to support your administrative and technical needs and is available five days a week to assist you if any issues should arise during your workday. In addition, the Capitol South Metro Station makes commuting to our office complex easy and convenient for your office staff and visiting clients.

You can lease our office space on a 6-month or 12-month rental contract and upgrade to a larger space if you outgrow the space you lease first.

If you want to create a professional appearance for your business, but you are not ready to rent an office, take a look at our virtual office option.


Meet in a spacious and comfortably appointed environment that inspires a constructive and lively group discussion.Located on the third floor, our conference room accommodates up to 35 people and is equipped with TV, VCR & DVD player, Professional Phone System, Speakerphone, Presentation Board and Refrigerator. There is a receptionist in the lobby to greet visitors. Users have access to copiers, support services and kitchen facilities during their meetings.

Awards & Recognition

In 1991 and 1992, Dan Williams worked closely with the United States Congress to advance the creation of the best possible energy policy bill. His pro bono work succeeded in getting 33 pages of energy-efficient legislation into the Energy Policy Act of 1992, which is now law. For his tireless efforts, Mr. Williams was honored with the International Special Recognition Award by the Association of Energy Engineers.

“I apprenticed for my father’s heating, air conditioning, sheet metal, roofing, and general contracting company from the time I was eight. He was the smartest man I ever knew, and he taught me the building business from the bottom up. At 16, he made me manager of his rental property. During college, I renovated a house and rented out rooms to pay my tuition, and in 1987 I brought my talent to the Washington metropolitan area and started buying, fixing, selling, and leasing real estate. Buildings and real estate are in my blood -- I love it!”

Dan Williams, CEO of Capitol Hill Offices

Affiliated Business Arrangement Disclosure Statement

  • Air Command, Inc.
  • AC, Inc. Consulting
  • AC, Inc. Home Inspections
  • AC, Inc. Home Inspectors
  • AC, Inc. Energy Audits
  • Cabinets 123
  • Kunlun Energy Company Limited
  • Washington DC Stay, LLC
  • Institute for a Sustainable Development

Dan Williams also works as an independent agent for Fairfax Realty of Tysons.
Licensee: DC, MD, and VA.

Businesses Affiliated with Fairfax Realty of Tysons:

  • Preferred Mortgage
  • Mid-Atlantic Title
  • American Home Shield
  • NRT Insurance Agency, Inc.
  • Mid-Exchange, LLC
  • Mid-Atlantic Settlement Services, LLC
  • NRT Title Services of Maryland, LLC