All licenses to move a building shall be for the period of one year, and no such license shall be granted until the party applying therefor shall have given a bond in the sum of $5,000 to the city, subject to the approval of the director of public service and safety, conditioned, among other things, that the party will pay any and all damages which may happen to any tree, pavement, street, sidewalk, or any public building or structure, and all damages resulting to all persons whomsoever, which may be caused by the carelessness or negligence of the person so licensed, or by his agent, employees, or workmen while engaged in moving any building in the streets, alleys, or public ways, and conditioned also that the party so licensed will save, indemnify, and keep harmless the city against all liabilities, judgments, damages, costs, and expenses which may in anyway accrue against the city in consequence of the granting of such license or any permit issued to the licensee as hereinafter provided, and will, in all things, strictly comply with the conditions of his license and any and all permits granted to the licensee as hereinafter provided.
('59 Code, § 1305.02)