Aikido martial arts classes are held in the main building of the Severna Park Community Center, located at 623 Baltimore Annapolis Blvd, Severna Park, MD 21146. Check with the center's amazing front desk staff if you've got questions when you arrive.
Budgeting additional time for travel and parking is always recommended, and Google Maps GPS and/or the Waze App for traffic alerts are both quite useful for spotting traffic issues. If you can't find parking in the main lot, there's plenty of parking in several immediately adjacent lots!
If you're running late though, no worries. Come on in and train!