If you drive within the Congestion charge zone the daily rate is £15 between the hours of 7:00am-6:00pm Monday-Friday and 12:00pm-6:00pm Saturday-Sunday and bank holidays.
There are short stay parking bays directly outside 10 Harley Street. Parking charges are applied Monday to Saturday between 8.30am-6.30pm. There are nearby car parks such as the Q-Park Harley Street on Queen Anne Mews, which is a short walk away from 10 Harley Street.
Follow the cycle paths towards Oxford Street and then follow the walking directions from either Oxford Circus or Bond Street Station.