Car/Taxi

The best way to get to campus is to arrive at 3700 O Street NW, Washington, D.C. 20007. This is the front gates of the university.
http://maps.georgetown.edu/copleyhall/

Copley Hall - Dormitory
Named for Fr. Thomas Copley S.J., this neo-gothic residence hall opened in 1932. During the 1930s, informal dances were often held in the newly constructed building. Adjacent to the Healy Building, Copley emulates its gothic façade with a gray stone structure and arched doorways. Copley Lawn, located directly in front of the building, is a common site for student activity events such as barbecues, fairs, and concerts. It also serves as a popular site to study, throw a frisbee, or just relax during sunny days.

For parking at the university, information can be found at http://otm.georgetown.edu/index.cfm?fuse=parking. Nights and weekends are free.
A limited number of daily parking spaces are available in the Southwest Garage and can be reached by entering campus from Canal Road. A map of Georgetown University Main Campus can be found on this website: http://maps.georgetown.edu/. 

Street Parking

Street parking around campus is severely limited and strictly enforced by the DC police (MPD) and the DC Department of Public Works (DPW). Most streets require a Zone 2 residential permit issued by the District of Columbia for parking for longer than two hours. A limited number of metered spaces are available on Reservoir Road, 37th Street and Prospect Street. 

For parking in the surrounding Georgetown area, check out http://dc.about.com/od/transportation/a/GeorgetownPkg.htm

For buses, your best bet is with the G2 or D6: http://wmata.com/pdfs/bus/DC.pdf