Except as prohibited above, and subject to the requirement of obtaining site plan approval if required, a nonconforming use may be changed to another nonconforming use of the same or more restrictive classification and when so changed to a more restrictive use, it shall not again be changed to a less restrictive use. The order of the classification of restrictiveness from the most restrictive to the least restrictive shall be as follows:

Conservation Zones

Agricultural Zones

Low Density Residential Zones

Lakefront Residential Zones

Medium Density Residential Zones

High Density Residential Zones

Mobile Home Park Zones

Multiple Residence Zones

Neighborhood Commercial Zones

Lakefront Commercial Zones

Office Park Commercial Zones

Community Commercial Zones

Vehicle Fueling and Repair Commercial Zones

Light Industrial Zones

Industrial Zones