Activities /

Visiting The Club

With a tradition of fellowship, Cosmos Club opens its doors to members, sponsored guests, and reciprocal club guests. We offer overnight accommodation, our premier dining experience, as well as spaces for learning and leisure.

Reciprocal Club Privileges

Cosmos Club provides a warm atmosphere for our cherished guests. Members of reciprocal clubs visiting Washington D.C. are welcome to enjoy our clubhouse and overnight accommodation.

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Dress Code

In respect of tradition, Cosmos Club requires a standard of dress for members and guests of the clubhouse. Our regular dress code is in effect from October 1 through April 30, with business casual attire acceptable during the warmer months (May 1 through September 30). Jeans, denim, t-shirts, athletic clothing and footwear, and hats and baseball caps are never acceptable.

SUMMER DRESS CODE IS IN EFFECT

REGULAR DRESS: Men are expected to wear a sport jacket, dress slacks, and a collared, long-sleeved, tucked-in shirt or turtleneck in the Clubhouse. Ties are required in the Garden Dining Room at lunch, dinner and Sunday Brunch. Ties are not required anywhere else. Women are expected to wear dresses, suits, skirts or dress slacks with jackets or tops of appropriate formality. Casual tops with slacks, but no jacket, do not constitute appropriate formality.

SUMMER DRESS: Business casual attire is permitted throughout the Clubhouse prior to 5 pm. After 5 pm, sport jackets, are required in the Garden Dining Room. “Business casual” for men includes slacks, and collared, long-sleeved, tucked-in shirts that button down the center, and for women includes dresses, or slacks or skirts with tops of appropriate formality.

Dress Code for Gentlemen

REGULAR DRESS: Men are expected to wear a sport jacket, dress slacks, and a collared, long-sleeved, tucked-in shirt or turtleneck in the Clubhouse. Ties are required in the Garden Dining Room at lunch, dinner and Sunday Brunch. Ties are not required anywhere else.

SUMMER DRESS: Business casual attire is permitted throughout the Clubhouse prior to 5 pm. “Business casual” for men includes slacks, and collared, long-sleeved, tucked-in shirts that button down the center.

Dress Code for Ladies

REGULAR DRESS: Women are expected to wear dresses, suits, skirts or dress slacks with jackets or tops of appropriate formality. Casual tops with slacks, but no jacket, do not constitute appropriate formality.

SUMMER DRESS: Business casual attire is permitted throughout the Clubhouse prior to 5 pm. “Business casual” for women includes dresses, or slacks or skirts with tops of appropriate formality.

DC Restaurants and Attractions

Visitors of the Club can use the link below to find restaurants within walking distance of the Cosmos Club and in surrounding neighborhoods as well as popular attractions in the nation’s capital.

Visitation Rules & Guidelines

Cosmos Club permits smoking in the East Garden. In accordance with District of Columbia law, smoking is prohibited within the building.  

Silent use of electronic devices is generally permitted throughout the club except during certain events. Members and Guests may not use devices larger than a cell phone in the Garden Dining Room.   

Nonintrusive cell phone conversations are permissible in the Task Center, Writer’s Room, and any third-floor meeting room not in use. Very brief cell phone calls are permissible: 

  • immediately inside the West Garden entrance; 
  • immediately inside the valet parking entrance; 
  • immediately outside the Powell Room’s interior entrance; 
  • in the Gold Room when not in use; and 
  • in the second-floor passageway between the mansion and the annex. 

Cosmos Club is a non-tipping facility.  Members and Guests are welcome to contribute to the Employee Holiday Fund.

While discussing Club or personal matters, a moderate amount of paperwork may be displayed in the Garden Dining Room during breakfast hours; the 1878 Grille during lunch hours, and at any time in the Club Room and East and West Gardens. Members and Guests intending such display during lunch should reserve seating in such areas. If more than a modest amount of paperwork will be displayed, Members and Guests should reserve a private meeting room for the discussion. No paperwork may be displayed in any portion of the Club’s dining areas during dinner hours.