I recently received Hoard of the Dragon queen as the hard book copy. I want to run it for some friends over roll 20 and was wondering if I have access to the pre-made module maps? Or am I required to also purchase them through roll20 to gain access?
You'd need to purchase the Module to have access to the Maps from the Module. If you have maps that you've drawn or received elsewhere, you can create your own pages with them and still run Hoard of the Dragon Queen without buying the preconfigured Roll20 Module for it.