When the moving of any building for which a permit has been granted is completed and all damage to public streets or other public property has been repaired, and the cost of repairing the damage and of performing other work as provided for in this chapter has been paid out of the deposit required by Section 1337.06 (b), such portion of the deposit then remaining unused under the provisions of this chapter shall be refunded, upon the surrender of the deposit receipt. Should the cost, however, of repairing the aforesaid damage or performing other work exceed the total amount of money deposited, the person to whom such permit was granted shall be liable for the amount of damages or other costs which are in excess of the amount deposited.