(1)Where it appears to the Chief Officer of a Municipality that may block of buildings in the municipal area, is in an unhealthy condition by reason of the manner in which the buildings are crowded together, or of the narrowness, closeness or faulty arrangement of streets, or of the want of proper drainage and ventilation, or of the impracticability of cleansing the buildings or other similar cause, he shall cause the block to be inspected by the Municipal Health Officer and the Municipal Engineer, who shall make a report in writing to the Chief Officer regarding the sanitary condition of the block.