Permits required. No building or structure, or part thereof, shall be hereafter erected, altered, moved or repaired unless a building permit shall have been first issued for such work. As used in this subsection, the terms "altered" and "repaired" shall include any changes in structural parts, stairways, type of construction, type, class or kind of occupancy, light or ventilation, means of egress and ingress, or other changes affected or regulated by the City building code, housing law or this chapter, except for minor repairs or changes not involving any of such features.