Parking 2120 L Street Garage (through Monument Parking) Recommended for appointments at our L Street location, and the GW Surgery Center: Located on L Street between 21st and 22nd Streets. Please note that L Street NW is a one-way street. Rates: 1 hour - $13.00 Early Bird (enter by 9:10 am) - $14.00 All Day - $20.00 Overnight - $22.00 Parking Garage Hours: 6:00 AM to 7:00 PM - Monday through Friday
