From 270 South, take 495 south toward Virginia. Follow 495 to Cabin John Parkway, exit 40 (Glen Echo).  Continue on the Parkway to its end at Chain Bridge where it turns into Canal Road.  Go left at the next light onto Arizona Avenue and at the top of the hill go right onto MacArthur Boulevard.  When the road divides, bear left onto Reservoir Road (the "reservoir" is on the right).  Continue on Reservoir Road, past Foxhall Road and the Georgetown University Medical Center, and turn right onto 35th Street.  Turn right onto “P” Street and left onto 36th Street.

From Baltimore and north, follow 95 South to 495 (west to Silver Spring). Exit at Connecticut Avenue, turning left towards Chevy Chase.  Drive south on Connecticut Avenue into the District of Columbia at Chevy Chase Circle.  Continuing on Connecticut Avenue, turn right onto Nebraska Avenue.  Go to Wisconsin Avenue and turn left (at Tenley Circle).  Continue down Wisconsin Avenue, passing Massachusetts Avenue, Calvert Street and “W” Place, and bear right onto 35th Street.  Go straight at the traffic light at Reservoir Road.  Turn right onto “P” Street and left onto 36th Street.

From Virginia, cross Key Bridge and turn right onto “M” Street. Go left onto 33rd Street, left onto Prospect Street and right onto 35th Street. Continue on 35th Street.  Turn left onto “O” Street and left onto 36th Street.

Street parking is available but somewhat limited in the immediate vicinity.  Holy Trinity does have arrangements for parking with Georgetown Visitation, on most Sundays and weekday evenings (for parish meetings).  Visitation is located on 35th Street, N.W., across from Volta Place.  Announcements are usually placed in the bulletin when parking will be unavailable at Visitation.

Handicapped parking is located on the corner of 36th and “O” Streets, N.W.