By car

From BWI:

• Interstate I-195 West
• Follow I-195 West for approximately 4.5
• Take exit 4B to merge on to I-95 South
• Follow I-95 South for approximately 11 miles
• Take ext 35B MD-216 West
• At the traffic circle, take the second exit staying on MD-216 West
• At the next traffic circle, take the first exit on to Maple Lawn Boulevard
• 8161 Maple Lawn Boulevard will be on your right

From Dulles:

• Go west on Saarinen Circle toward Copilot Way
• Slight left t continue on Saarinen Circle (sign for ARRIVALS)
• Continue on Dulles Airport Access Road, approximately 12 miles
• Take exit towards Richmond/exit 18-19/I-495/Baltimore/VA-123
• Merge on to VA-267 (Toll road)
• Take exit 18 to merge on to I-495 North, Capital Beltway, towards Baltimore.  Follow for 18½ miles
• Take exit 27 to merge on to I-95 North towards Baltimore
• Take ext 35B MD-216 West
• At the traffic circle, take the second exit staying on MD-216 West
• At the next traffic circle, take the first exit on to Maple Lawn Boulevard
• 8161 Maple Lawn Boulevard will be on your right