[Added 6-12-1952 by Ord. No. 298]
In R-3a Residence Districts, the following regulations shall apply.
[Amended 12-10-1992 by Ord. No. 581]
A building may be erected, altered or used and a lot or premises may be used for any of the following purposes and for no other:
A. 
Any use permitted in R-3 Residence Districts.
[Amended 12-10-1992 by Ord. No. 581]
A lot area of not less than 7,000 square feet per family shall be provided for every building hereafter erected, altered or used in whole or in part as a dwelling.
[Amended 3-8-2007 by Ord. No. 718]
The building area shall not exceed 35% of the lot area, and not more than 45% of any lot area shall be covered by impervious surfaces.
No building may be erected on a lot with a frontage of less than 70 feet.
[Amended 12-12-1996 by Ord. No. 599]
There shall be a front yard, the depth of which shall be at least 25 feet.
In the case of a single-family dwelling, there shall be two side yards, one on each side of the main building, neither of which shall be less than 15 feet wide, and together having an aggregate width of not less than 35 feet.[1]
[1]
Editor's Note: Original Section 507a, which dealt with side yards for buildings other than single-family dwellings and which immediately followed this section, was deleted 12-10-1992 by Ord. No. 581.
[Amended 12-10-1992 by Ord. No. 581; 12-12-1996 by Ord. No. 599]
There shall be a rear yard, the depth of which shall be at least 25 feet. In the case of a building over 40 feet in height, the depth shall be increased five feet for each 12 feet or portion thereof by which the building exceeds 40 feet in height.[1]
[1]
Editor's Note: Original Section 509a, which dealt with changing existing dwellings into two-family dwellings and which immediately followed this section, was deleted 12-10-1992 by Ord. No. 581.