Occasional alternate space: GWU Marvin Center dance space
On the rare occasions when the parish hall is unavailable, the Sunday jam often winds up in a GWU Theater and Dance Department dance space. (We generally owe this option to the enduring support of Maida Withers, at GWU, for which we are eternally grateful!)
800 21st Street, NW
Washington, DC 20052
The studio is room 241, on the 2nd floor, down the hall to the right when you exit the elevators.
Here's a map to the Marvin center main entrance (on 21st street), showing the two-block walk from the DC Metro Foggy Bottom/GWU station (on I street between 22nd and 23rd).
Info on parking, etc: http://gwired.gwu.edu/marvincenter/info/Address/