(A) Subdivision lots shall be in accordance with the standards set forth in Chapter 157 of this code.
(B) The Boone County Sanitarian may require lots larger than required to adequately address septic concerns.
(1) The lot size, width, depth, shape, grade location and orientation shall be in proper relation to street and block design and to existing and proposed topographical conditions.
(2) All lots shall abut on a street.
(3) Side lines of lots shall be at approximately right angles to straight streets and on radial lines on curved streets. Some variation from this requirement is permissible, but pointed or very irregular lots should be avoided.
(4) Double frontage lots should not be platted, except that, where desired along interstates, arterials, major collectors or minor collectors, lots may face on a local street and back on the thoroughfares. In that event a bufferyard of no less than Bufferyard D of the Zoning Ordinance shall be provided along the back of each lot.
(5) Building lines shall conform to the provisions of Chapter 157 of this code.
(6) Corner lots shall be sufficiently larger than interior lots to allow maintenance of building lines on both streets. A corner lot shall include a vision clearance space between three feet and 12 feet above the established grade at the street corner which is free from any kind of obstruction to vision. The vision clearance space shall occupy the triangular space at the street corner which is above a diagonal line connecting two points measured 15 feet equidistant from the street corner along each property line.
(7) Whenever possible, unit shopping centers, based upon sound development standards, should be designed in contrast to the platting of lots for individual commercial use.
(8) Lots abutting a watercourse, drainage way, channel or stream, outside of the area designated as open space shall have additional minimum width or depth as required to provide an adequate building site and afford the minimum usable area required by Chapter 157 of this code for front, rear and side yards.
(9) The following paragraph shall be required as a provision of the restrictive covenants of all final plats to which they apply:
“No driveway on any corner lot shall enter the adjoining street at a point closer than 75 feet to the intersection of the street right-of-way lines, or in the case of a rounded property corner, from the intersection of the street right-of-way lines extended.”
(10) Lots shall not derive access exclusively from an arterial, major collector or minor collector. Where driveway access from an arterial, major collector or minor collector may be necessary for several adjoining lots, the APC may require that the lots be served by a shared driveway in order to limit possible traffic hazards on the street. Because of their limited nature, shared driveways are not required to meet public roadway requirements.
(11) In order to provide extended flexibility in design, road frontage requirements may be reduced by up to 20% on up to 20% of all lots in a subdivision.
(12) In order to preserve agricultural ground, minor subdivisions in the AG District should be laid out in a cluster design. This is best accomplished by contiguously grouping the lots in such a manner so as to consume the least amount of land possible given the constraints of the landscape. Minor subdivisions plats must locate and arrange the residential lots so as to protect, to the maximum extent possible, that portion of the tract preserved for agricultural use.
(13) Depth and width of any lot shall not exceed a 3 to 1 depth to width ratio.
(14) Adverse environmental regulations:
(a) No land shall be subdivided that is found to be unsuitable for subdividing by reason of flooding, ponding, poor drainage, adverse soil conditions, adverse geological formations, unsatisfactory topography or other conditions likely to be harmful to the public health, safety or general welfare, unless the unsuitable conditions are to the satisfaction of the county.
(b) No subdivision containing land located in a floodway or a flood hazard area shall be approved by the Area Plan Commission without the approval of IDEM. No lot shall be located so as to include land located within a floodway or flood hazard area unless the lot is the size and shape that it will contain a buildable area not within the floodway or flood hazard area, suitable for development as allowed by the zoning ordinance for zone in which the lot is located.
(15) All residential subdivisions must depict an arrangement of residential lots so as to reduce, the maximum extent feasible, any nuisance or conflict between residential and agricultural uses, both within the tract and in relation to adjoining and nearby tracts and to demonstrate compatibility of the proposed minor plat and existing agricultural uses.
(16) All lots in the Agricultural District must design the lot configuration to take into account the minimum spacing between newly constructed dwellings. The minimum spacing between residential dwellings is 140 feet. This minimum space shall provide an aesthetic reprieve from new residential development going into a rural area. Within the 140-foot buffer, no permanent structures can be built. The applicant must provide a provision in the covenants, conditions and restrictions which describes the obligation of the developer to meet the requirements of the spacing buffer.
(C) An aesthetic design reprieve shall be placed on developing minor plats in the Agricultural District. The minimum spacing buffer shall be measured from the nearest property line requiring a spacing distance between minor plats equally sharing the 300’ reprieve not less than 1/2 of the 300’ reprieve per developer. Within the minimum spacing buffer, no permanent structures can be built. The applicant must provide a provision in the future covenants, conditions, and restrictions for any developing minor plat which describes the obligation of the developer to meet the requirements of the minimum spacing buffer.
(Ord. 98-26, passed 12-21-1998; Am. Ord. 2006-07, passed 5-8-2006; Am. Ord. 2009-07, passed 10-19-2009)