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b.	Wherever there is an abrupt change in use -- i.e., residential to commercial it is desirable that’a buffer area of open space or protective planting be placed between them which will protect each use from the undesirable effects of the other.
c.	Parking and other public areas used at nignt shall be adequately lighted. Private areas shall be protected from such lighting or any other lighting from public areas. Public streets may also require protection from excessive glare of lighted areas.
d.	Hie Planning Commission may also attach any other reasonable special conditions as they deem necessary.
Section 402. REGULATIONS FOR CONTINUING NON-CONFORMING EXISTING USES AND STRUCTURES
A.	PURPOSE
If within the zones established by this ordinance (or ajnend-ments that may be adopted later) there exist lots, structures, and uses of land and structures which were lawful before this order was passed or amended, but which are prohibited under the terms of this order, such uses be termed non-conforming uses. Such uses are declared by this ordinance to be incompatible with permitted uses in the zones involved.
However, it is the intent of this ordinance to permit these non-conformities to continue m their present condition. It is further the intent of this ordinance that non-conformities shall not be enlarged upon, expanded, extended, nor used as grounds for adding other structures or uses prohibited elsewhere in tiie same zone.
A non-conforming use of a structure, a non-conforming use of land or a non-conforming use of a structure and land, shall not be extended or enlarged after passage of this ordinance by attachment of additional signs to a building, of the placement of additional signs or display devices on the land outside the building, or by the addition of other uses, if such additions are of a nature which would be prohibited generally in the zone involved.
To avoid 'indue hardship, nothing in this ordinance shall be deemed to require a change in the plans, construction, or designated use of any building 011 which actual construction '•.'as lawfully begun prior to the effect Lv' date of adoption or amendment of this ordinance and upon which actual building construction has been diligently carried on. Actual construction is hereby defined tG include the placing of construction materials in permanent position and fastened in a permanent
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