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August 6, 2025 <br />Centerville Planning & Zoning Commission <br />Page 3 of 8 <br />Reference: Zoning Code Issues & Definitions <br />As shown in Figure 1, a corner lot would have two ÒfrontÓ lot lines, and therefore have a front setback from <br />each. In residential areas, the minimum front setback varies between 30 feet (R-2A, R-3) and 35 feet (R-1, <br />R-2, R-4, R-5), depending on the zoning district. All residential zones have a minimum side setback of 10 <br />feet, and a minimum rear setback of 25 feet. <br /> <br />The current requirement makes it easy for staff to determine and administer, and would result in a <br />consistent built form. The downside is that a property owner of a corner lot is unable to use a large amount <br />of their lot due to the front setback requirement. One remedy to this is that the other two lot lines of a corner <br />lot are considered ÒsideÓ lot lines, as having two ÒrearÓ lot lines would result in much of the lot being within <br />either a front or rear setback. This is not explicitly mentioned in the current code but appears to have been <br />past practice; if the city keeps the front lot line definition and application staff would recommend adding <br />language stating that a corner lot has two front lines and two side lot lines. <br /> <br />Options the commissioners discussed in July included having the front lot line be the lot line having the <br />legal street address, or where the access/driveway is located be the ÒfrontÓ lot line. Both options can be <br />straightforward for square or rectangular shapes. Figure 2 shows how a corner lot would be impacted <br />differently by such a change. <br /> <br /> <br />Figure 2: Front lot line and setback based on address or access. <br />One item to consider is that part of the lot is now no longer within the setback, and could be built in; this is <br />shown in green in Figure 2. If we assign the side lot lines on a corner lot the same as an interior lot, a large <br /> <br />5 <br /> <br />