(A) The regulations of this district are intended to provide for low density residential development, and to ensure that residential development not having access to public water supplies and dependent upon septic tanks for sewage disposal will occur at sufficiently low densities to provide a healthful environment.
(B) Within the R-20 Residential District, the following uses shall only be permitted:
(1) Principal uses.
(a) Single-family dwellings;
(b) Single-family modular homes;
(c) Non-commercial agricultural uses;
(d) Home occupations (see § 152.077);
(e) Bed and breakfast;
(f)
Playgrounds;
(g) Public or private parks;
(h) Public works and public utility facilities such as distribution lines, transmission lines and towers, electric substations, water tanks and towers, pumping stations, water treatment plants, sewage lagoons and plants, telephone exchanges and fire stations, provided:
1. Such facilities are essential to the service of the immediate area;
2. No vehicles or materials shall be stored in the premises and no offices shall be permitted, except in the case of fire stations, water treatment plants, sewage lagoons and plants;
3. All buildings and facilities shall be set back at least 20 feet from all property lines, and shall be designed and landscaped in such a way as to blend in with the surrounding area; in height; and
4. All dangerous apparatus shall be enclosed by a chain-link fence at least eight feet;
5. There shall be a densely planted and maintained buffer strip along the rear and side lot lines. No such buffer shall, however, extend nearer to a street right-of-way line than the established building line of the adjoining lots.
(i) Customary accessory uses and structures including private garages, carports, parking decks, swimming pools and other accessory structures (see § 152.075).
(2) Special uses. The following uses shall be permitted subject to a Board of Adjustment review and approval:
(a) A temporary structure or dwelling for emergencies or for construction purposes, provided permits for such uses shall be issued for periods not to exceed six months, but may be renewed for one additional six-month period;
(b) Athletic fields and similar outdoor facilities;
(c) Cemeteries;
(d) Commercial agricultural uses;
(e) Churches and other places of worship;
(f) Group home developments;
(g) Museums and art galleries;
(h)
Community centers, clubs and lodges, golf courses, community swimming pools, fishing lakes, family campgrounds and other similar recreation uses; and
(3) Accessory uses. Customary accessory buildings or uses, provided such shall be permitted only in a rear yard and shall be situated not less than ten feet from any property line; and further provided that in the case of corner lots such buildings or structures shall be set back at least 25 feet from any side line right-of-way line (See § 152.075).
(4) Dimensional requirements. Within an R-20 District as shown on the zoning map, the following dimensional requirements shall be complied with:
(a) Minimum required lot width: average of 100 feet;
(b) Minimum required front building setback line: 30 feet from edge of ROW;
(c) Minimum required side yard: 15 feet each. Corner lots must have an additional ten feet along the side street line from edge of ROW;
(d) Minimum required rear yard: 40 feet; and
(e) For purposes of computing the size of lots in an R-20 District, the lot area may include public road rights-of-way and private road easements; provided, said rights-of-way and easements shall not exceed 30 feet in overall width for purposes of lot area computation.
(5) Minimum lot sizes and maximum lot coverage.
(a) Lots recorded prior to October 1, 1993 to be used for single-family purposes or where the development does not require a Sedimentation/Erosion Control Plan under state law:
1. Minimum required lot area for each dwelling unit: 20,000 square feet; and
2. Maximum permissible lot coverage by principal and accessory buildings shall not exceed 50% of the total lot area.
(b) Lots recorded after October 1, 1993 to be used for single-family purposes where the development requires a Sedimentation/Erosion Control Plan under state law:
1. Minimum required lot area for each dwelling unit: 21,780 square feet (one-half acre); and
2. Maximum permissible lot coverage by principal and accessory buildings shall not exceed 50% of the lot area.
(c) Lots to be used for multi-family where the development does not require a Sedimentation/Erosion Control Plan under state law:
1. Minimum required lot area for the first dwelling unit: 20,000 square feet;
2. Minimum required lot area for each additional unit: 10,000 square feet; and
3. Maximum permissible lot coverage by principal and accessory buildings shall not exceed 50% of the lot area.
(d) Lots to be used for multi-family where the development requires a Sedimentation/ Erosion Control Plan under state law:
1. Option 1.
A. Minimum required lot area for each dwelling unit: 21,870 square feet (one- half acre); and
B. Maximum permissible lot coverage by principal and accessory buildings shall not exceed 50% of the lot area.
2. Option 2.
A. Minimum required lot area for the first dwelling unit: 20,000 square feet;
B. Minimum required lot area for each additional unit: 10,000 square feet; and
C. Maximum permissible impervious coverage as defined in this chapter shall not exceed 36% of the total lot area, or 24% of the total lot area if the lot abuts a curb and gutter street system or if the lot is located within the WS-4 Critical Area.
(Ord. passed 4-5-2010; Ord. passed 5-3-2021; Ord. 05012023-2, passed 5-1-2023)