After the number and location of fire escapes which are necessary or proper for protecting life or property are deter mined by the city fire marshal, he shall immediately cause written notice to be served upon the owner, agent, manager, lessee or other person having control of a building who fails to conform to the requirements of this chapter by leaving a copy of the notice at the residence or place of business of such person and by posting a copy of the notice on the building. The notice shall require the construction or repair of fire escapes on the building within thirty days from service of the notice.