In any “R” District there shall be a minimum front yard depth required as stated in the yard requirements for the particular district; provided, however:

1.   Any replat in any “R” District adjacent to an existing plat with dwellings located thereon, the front yard depth for the lots in the replat shall not be less than the smallest front yard depth of existing dwellings located within 200 feet of the replat, but in no event shall the front yard depth be less than the smallest front yard depth of existing dwelling immediately adjacent thereto which fronts on the same side of the street;

2.   No front yard depth of any existing lot without a dwelling shall be less than the smallest front yard depth of any lot with existing dwelling immediately adjacent thereto and within 200 feet fronting on the same side of the street.

Nothing in this chapter shall be interpreted as to permit a front yard depth which is less than the minimum required front yard depth for the district in which it is located.