“Unapproved” awnings on balconies

In 1965 our Strata Plan was registered with a note  “All balconies extend upwards to a height of 8′ from the floor of each”. The current awnings are 9′ above the floor of each and are attached to the common property walls by a bracket that is 8′ above the floor of the balconies.

The Strata Manager advises “There is no By-Law as such for the installation of the original awnings”.  Does this mean that maintenance is the responsibility of the Owners Corporation?