§ 2.03  LOT AND BUILDING STANDARDS.
   All lots and buildings in residential zones must comply with the lot and building standards of this section, (division § 2.03.01 below), except as otherwise expressly allowed by the lot line house standards of division § 2.03.02, the attached house standards of division 2.03.03, the residential infill development standards of § 2.04, or the cluster development standards of § 2.05. See § 9.08 for other rules governing measurements and exceptions to these standards.
   2.03.01   Table of Lot and Building Standards.
 
RR-40
RS-20
RS-12.5
RS-7.5
RU-5
RU-3.5
RU-2 , 2A, 2B
RU-1
RU-0.5
Minimum lot area (square feet)
40,000
20,000
12,500
7,500
5,000
3,500
2,000[3]
2,000
2,000
Minimum lot area for multi- unit buildings (square feet)
NA
NA
NA
NA
NA
NA
6,000
6,000
6,000
Min. lot area per dwelling unit (sq ft)
40,000
20,000
12,500
7,500
5,000
3,500
2,000[2], [3]
1,000
700
Maximum density of cluster development (dwelling units/net acre)
1.1
2.2
3.5
5.8
8.7
12.4
21.8
43.6
62.2
Minimum lot width (feet)
150
100
80
60
50
35
20
20
20
Minimum setbacks (feet)
        Front
50
35
35
30
20
15 [1]
10 [1]
10 [1]
10 [1]
        Rear
50
25
25
25
25
25
25
25
25
Side (1 side/ combined total)
50/100
15/30
7/20
5/15
3/10
2/6
2/4
2/4
2/4
Maximum height (feet)
35
35
35
35
35
38
38
38
50
Minimum height (feet)
NA
NA
NA
NA
24
24
24
24
24
[1] Street-facing garages, where allowed, must be setback at least 20 feet.

[2] Within the RU-2B Zone, the minimum lot area per dwelling unit is 2,000 square feet, except that in the case of an existing building, one dwelling unit shall be permitted for each 1,000 square feet of gross floor area in the building, not including the basement.

[3] In the case of an existing building within the RU-2A Zone, the minimum lot area shall be 1,800 square feet per dwelling unit.  This provision only applies to an existing building being converted into single-family residential.
 
   2.03.02   Lot Line (Single-Family) Houses.
   (A)   All lot line houses must comply with the lot and building standards of § 2.03.01, except when those standards are expressly modified by the lot line house standards of this subsection (§ 2.03.02).
   (B)   The side setback on one side of a lot may be reduced to zero. The minimum setback on the other side of the lot must comply with the applicable side setback standards of § 2.03.01.
   (C)   Eaves and other building projections on the side of a house with a reduced setback may not project over the abutting lot line unless:
      (1)   An easement for the projection is obtained from the abutting owner and recorded with the Kenton County Clerk; and
      (2) such projections are located at least nine feet above the ground.
   (D)   When the exterior wall or eaves are set back less than two feet from the lot line, an easement must be obtained from the abutting owner and recorded with the Kenton County Clerk. The easement must ensure at least two feet of unobstructed space between the furthermost projection of the structure (including the eave) and the edge of the easement. This provision is intended to ensure the ability to conduct maintenance and upkeep activities on the lot line house.
   (E)   Windows or other openings that allow for visibility into the side yard of the adjacent lot are not allowed on lot line houses. Windows that do not allow visibility into the side yard of the adjacent lot, such as clerestory windows or translucent windows, are allowed, subject to compliance with the building code.
   2.03.03   Attached (Single-Family) Houses.
   (A)   General.
      (1)   All attached houses must comply with the general lot and building standards of § 2.03.01, except when those standards are expressly modified by the attached house standards of this subsection (§ 2.03.03).
      (2)   The common or abutting wall must be shared for at least 50% of the length of the side of the dwelling units.
      (3)   No side setback is required for common or abutting walls.
      (4)   Street-facing garage doors may comprise no more than 40% of the width of the front facade of an attached house. All street-facing garage doors must be recessed at least five feet from the front facade of an attached house. The intent of these standards is to prevent garages from being the dominant visual feature on the front of the building.
      (5)   On corner lots, either the rear setback or side setback may be reduced to zero. However, the remaining side or rear setback must comply with the general lot and building standards of § 2.03.01.
      (6)   The minimum total (combined) side setback standard of § 2.03.01 applies along the sides of the building that do not have common or abutting walls.
   (B)   RU-5 and RU-3.5 Zones.  No more than two units may be attached by a common wall. Structures containing three or more attached dwelling units are prohibited in the RU-5 and RU-3.5 zones.
   (C)   RU-2, RU-1 and RU-0.5 Zones.  The following standards apply to attached houses in the RU-2, RU-1 and RU-0.5 zones.
      (1)   Up to eight dwelling units may be attached (have common or abutting walls) in the RU-1 and RU-0.5 zones. Structures containing nine or more attached houses are prohibited.
      (2)   The roof of each attached house must be distinct from the others through separation of roof pitches or direction, or other variation in roof design.
      (3)   Common access to the rear of the lots is required for access to parking areas (individual or common) and may take the form of a public right-of-way (alley) or private easement. Private access drives must be at least 12 feet wide if designed for one-way traffic and at least 20 feet wide if designed for two-way traffic.
(Ord. O-37-06, passed 8-15-06; Am. Ord. O-56-06, passed 11-15-06; Am. Ord. O-7-10, passed 2-16-10; Am. Ord. O-24-10, passed 6-24-10; Am. Ord. O-31-13, passed 8-27-13)