Is a garage door common property in a condominium townhouse with a built-in drive under garage?

Read your governing documents to determine who owns the door, who is responsible for maintaining it and how maintenance and access are defined.

In this case, your garage, its door, overhead lights and fan, attic space, cement pad and so forth may be defined as 'limited common area' that is owned by the association in common with all other owners, but dedicated to fewer than all the owners.

In this case, as well, since you are the only owner who 'uses' the garage door, the association may repair or replace it and charge your account.