Request to erect an Awning

An owner has asked the SC if an awning can be affixed to their balcony. Would this set a precedent for other owners? What if other owners subsequently want to erect a different type of awning/shading ? How does the SC protect other owners from subsequent costs such as maintenance of the awning or for maintenance/repair of common property or for consequent damage in the event of an accident [we live in a location subject to high winds]? How does the SC maintain some control over the appearance of the strata in the event of deterioration of the awning etc?