In a condominium, the responsibility for approving changes to the building exterior usually lies with the condominium association's board of directors. This board is typically made up of condo owners who are elected by the other owners to make decisions on behalf of the association as a whole. These decisions may include approving or denying requests for changes to the building exterior, such as modifications to balconies, windows, or paint color. The approval process usually involves reviewing proposed changes against established guidelines or architectural standards laid out in the condominium's governing documents.