Destruction or demolition of nonconforming use

If a lawful nonconforming use is destroyed by accident or by an act of God to the extent of 75% of its fair market value, or it is demolished in any lawful manner, it shall not be rebuilt unless it conforms to the provisions of this chapter. If such use is damaged to an extent less than 75% of its fair market value, it may be restored provided the location and the total floor area are not increased or altered. Nothing shall prevent the performance of normal maintenance work on a lawful nonconforming use.