If you need ARCHICAD to do a little more, we recommend the following (in no particular order):
Parking Lot Maker (original) by Mark Beauman
Straßenzug (Street Maker) by Hemo Mooslechner
ARCHICAD Goodies by Graphisoft
Grasshopper – ARCHICAD Live Connection by Graphisoft
Infinite Openings by CADSWIFT
AWS Windows (requires registration)