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For Reciprocal Club Members

Located in the heart of Washington, DC, the Cosmos Club is a haven of refined elegance and impeccable service, where guests experience old fashioned warmth and tradition along with modern technology and amenities.

Reciprocal Club members can enjoy overnight accommodations in our luxurious, unique guest rooms of the Mansion, the newly renovated Hillyer House, or the Annex. Each overnight stay includes a full breakfast for two. Overnight parking is also available on the property.

A quick taxi or Metro ride, located just steps from the Club’s front door, connects visitors with the world-class attractions of our nation’s capital.

Dining options at the club include The Garden Dining Room for breakfast, lunch, dinner and Sunday Brunch, and The Garden Bar, which offers a light menu, afternoon tea and evening cocktails. A variety of private rooms are also available for dinners, parties, weddings, receptions, and similar events.

Please take a minute to learn about all of the amenities available by looking through our website. To inquire about reservations, rates, and availability, please contact us by phone at 202-387-7783 or send an e-mail to

Our service motto at the Cosmos Club is “excellence through commitment.” We strive to provide all of our members and guests with service above the standard of quality at other distinguished private clubs. All of the Club’s employees are part of a select group of individuals who have the ability, character and knowledge to work in one of the world’s most exclusive private clubs. Our courteous and qualified staff is waiting to serve you.

Dress Code Policy: Please click here to view the Club’s Dress Code.