1155.07 SETBACK AND FLOOR AREA REQUIREMENTS.
   (a)   Setback Requirements. Every permitted use of land and all buildings and structures shall be located on a lot in a manner that maintains the required setback from a right-of-way as forth in Schedule 1155.07 , except as otherwise regulated in Chapter 1183 , Conditional Use Regulations, for conditional uses. The area within any setbacks shall remain unobstructed by structures except as otherwise permitted in this Code.
 
   (b)   Building Setback from Project Boundary. The setback of a dwelling or a principal building from any project boundary shall be not less than the distance set forth in Schedule 1155.07 . The project boundary shall include all lot lines that divide the tract of land developed from adjacent lots not included in the development.
 
   (c)   Front Setback on Built-up Block Faces. The minimum front setback depth for new building may be the average depth, plus or minus five (5) feet, of the front setbacks of existing dwellings or buildings located within 100 feet on either side of a given lot, provided however, the depth of the front setback resulting there from shall not be less than one-half the distance set forth in Schedule 1155.07. The Planning Commission shall approve this alteration when such alteration conforms to the desired character of the district as found in the City's Master Plan or the proposed setback creates or reinforces the desired character. When evaluating the proposed placement of such street wall the following shall be considered:
      (1)   Building Orientation
      (2)   Building Placement
      (3)   Sloping Conditions
      (4)   Materials
      (5)   Entrances
      (6)   Roof Lines
 
   (d)   Building Spacing. The minimum distance separating buildings shall be not less than the distance set forth in Schedule 1155.07.
 
   (e)   Schedule 1155.07 Minimum Building Setbacks.
Schedule 1155.07
Minimum Building Setbacks and Spacing
 
R-3
Single-family Attached District
(1) Minimum Setback from Street Right-of- Way
25 feet (a)
(2) Minimum Building Setback from:
A. Project boundary lines abutting an R-1, R-2
District
20 feet
B. Project boundary line abutting all other districts
10 feet
(3) Minimum Building Separation
A. Main wall to main wall
40 feet (b)
B. Main wall to end wall
25 feet
C. End wall to end wall
15 feet
(a) Except as provided for in sub-section 1155.07 (c) Front Setback on Built-up Block Faces
(b) The Planning Commission may permit a reduction in this spacing requirement to a minimum separation of 25 feet when it determines that adequate privacy is provided through the use of landscaping, architectural features, or other similar means of insuring privacy.
 
   (f)   Definitions. The following definitions shall apply to terms used in this Section:
      (1)   Main Wall. The outside wall of a building that contains the primary windows of any living, family or dining room.
      (2)   End Wall. The outside walls other than a main wall of a building, which may be blank or contain windows not considered to be primary windows.
   (g)   Gross Floor Area of Dwelling Units. The gross floor area for each Single-family attached dwelling shall not be less than 1,400 square feet.