The R-1 district is established to encourage the orderly transition of land from agricultural to low-density residential use; to provide areas well suited to meet the market demands for large lots; and to prohibit any uses which are incompatible. The principal use of land is for single-family dwellings on large lots where minimum community services may be appropriate.

(Ord. 280 § 8.01(1), 1968.)

The following uses are permitted in the R-1 district:

A.

Accessory uses, including off-street parking facilities in accordance with the provisions of Chapter 17.44;

B.

Churches, rectories, seminaries, convents, monasteries and similar religious institutions, including dormitories and other accessory uses required for operation;

C.

Home occupations;

D.

One-family detached dwellings and permitted accessory uses;

E.

Parks, forest preserves and recreational areas, when publicly owned and operated;

F.

Schools, public, denominational or private, elementary, junior high and high, including playgrounds and athletic fields auxiliary thereto;

G.

Signs, as permitted in Chapter 17.42;

H.

Stables, private; provided, that:

1.

The property to be so used lies within a one mile radius of an entrance to a major forest preserve bridle path or forest preserve horse trail,

2.

No horse shall be kept, stabled or maintained on any zoning lot with an area of less than 20,000 square feet. Three (3) horses may be allowed for the first 20,000 square feet of zoning lot area, and one additional horse may be allowed for each additional 20,000 square feet of zoning lot area,

3.

Stables or those portions of barns devoted to stable purposes shall not exceed 250 square feet of floor area per horse authorized in this section, nor shall they be less than 200 square feet in overall floor area. Stables or paddocks shall not be placed in the front yard of any zoning lot nor within 15 feet of any property line or such greater distance as is required by the yard area provisions of this title. No such stable or paddock shall be placed within 50 feet of the principal residence building on such zoning lot, and no stable shall be placed within 100 feet of any residence building on contiguous or neighboring zoning lots unless the written consent of the owners or adult occupants of such residence building has first been obtained, in which case the stable may be placed not closer than 50 feet from such residence building. Stables or paddocks shall not be placed in any locations on any zoning lots unless and until the city health officer (or such other official as the city council shall designate) has affirmatively found and certified that the use by horses of a stable or paddock on any proposed location will not contaminate any water supply used for human consumption, and that such proposed location will not allow offensive or noxious animal waste solids or liquids to leach, drain or run over the surface of any contiguous or neighboring zoning lots,

4.

Any existing use of any zoning lot for a stable as defined in Chapter 17.04, which use was lawfully in existence prior to April 8, 1969, but which does not conform to the provisions of this section, is declared to be a legal nonconforming use.

(Ord. 88-13 § 1A, 1988: Ord. 580 § 2, 1976; Ord. 280 § 8.01 (2), 1968.)

The following uses may be allowed by special use permit in accordance with the provisions of Chapter 17.54:

A.

Cemeteries, including crematories and mausoleums in conjunction therewith;

B.

Colleges and universities, including dormitories, fraternities, sororities and other accessory buildings necessary for operation, but not including business colleges or trade schools;

C.

Filling of holes, pits or lowlands with noncombustible material free from refuse and food wastes;

D.

Golf courses, including ancillary uses normally provided, such as restaurants, including the sale of alcoholic beverages, residential uses for guests, manager and other employees, but not including commercially operated driving ranges or miniature golf courses; and provided, that no clubhouse or accessory building shall be located nearer than five hundred (500) feet to any dwelling on another zoning lot;

E.

Mining, loading and hauling of sand, gravel, topsoil or other aggregate or minerals, including equipment, buildings or structures for screening, crushing, mixing, washing or storage, provided, that:

1.

Not open pit or shaft is less than two hundred (200) feet from any public road, nor less than three hundred (300) feet from an existing residence,

2.

All buildings or structures for the screening, crushing, washing, mixing or storage are located not less than five hundred (500) feet from an existing residence, and not less than three hundred (300) feet from any property line.

3.

The borders of the entire property are fenced with a solid fence or wall at least six (6) feet in height, and

4.

A plan of development for the reclamation of the land is provided as part of the application for special use. The plan of development shall be accompanied by a written agreement between the owner or his agent and the city, and a performance bond in an amount equal to the cost of the reclamation of the land as set forth in the development plan;

F.

Nursery schools, public or private;

G.

Public service uses, including filtration plant, pumping station and water reservoir; sewage treatment plant; sanitary landfill; police and fire stations, telephone exchanges, electric substations and other similar public service uses;

H.

Planned developments, under single ownership or control, in which incidental business or recreational facilities for the convenience of the occupants may be furnished, provided the property proposed for development has a gross area of at least ten (10) acres. For such developments, the city council may vary the regulations in this section, provided such variation are consistent with the general purpose and intent of this title and will result in better site planning and thus be of greater benefit both to the occupants of the development and to the community;

I.

Stables, public, subject to the provisions of subdivisions 1, 3 and 4 of subsection H of Section 17.08.020 applicable to private stables, as amended from time to time, and provided that the zoning lot to be used has a minimum area of 5 acres and provided that the number of horses on the premises and the conditions of operating, advertising, and use of such public stable shall be such as to not substantially affect adversely the neighboring properties nor the general neighborhood area in which the stable is to be located, and provided further that no business activities may be conducted on the premises other than the housing, boarding, grooming, exercising, and caring for horses;

J.

Swimming club, private;

K.

Swimming pool, private (not-for-profit);

L.

Swimming pool, public.

(Ord. 88-13 § 1B, 1988: Ord. 88-4 § 2, 1988; Ord. 580 § 3, 1976; Ord. 280 § 8.01(3), 1968.)

Automobile parking facilities shall be provided as required or permitted in Chapter 17.44.

(Ord. 280 § 8.01(4), 1968.)

A.

Every one-family detached dwelling hereafter erected shall be located on a lot having an area of not less than twenty thousand (20,000) square feet, and a width at the established building line of not less than one hundred (100) feet.

B.

All nonresidential principal uses of buildings as permitted in this chapter shall be located on a tract of land having an area of not less than twenty thousand (20,000) square feet with a minimum width of one hundred (100) feet at the building line.

C.

Minimum lot sizes for special uses shall be prescribed and conditions stipulated at the time a special use permit is authorized, but in no case shall any lot not have an area of less than twenty thousand (20,000) square feet and a width at the established building line of one hundred (100) feet.

(Ord. 88-13 § 1C, 1988: Ord. 391 § 1(G), 1972; Ord. 280 § 8.01(5), 1968.)

No building shall be erected or enlarged unless the following yards are provided and maintained:

A.

Front Yard. A front yard of not less than thirty-seven (37) feet;

B.

Side Yards. Each lot shall have two side yards, the combined width of which shall be not less than 40 percent of the width of the lot; provided, however, that neither side yard shall have a width of less than 17 percent of the width of the lot, or seventeen (17) feet, whichever is greater.

1.

On corner lots the side yard adjacent to the street shall have a width of not less than 37 percent of the width of the lot, but need not exceed forty (40) feet, and in the case of a reversed corner lot there shall be maintained a setback from the side street of not less than 60 percent of the front yard required on the lots in the rear of such corner lots. No accessory building on said reversed corner lot shall project beyond the required front yard on the adjacent lot to the rear, nor be located nearer than four (4) feet to the side lot line of said adjacent lot,

2.

On lots on which a nonresidential use is erected or enlarged, there shall be a side yard of not less than twenty (20) feet on each side of the main structure and a combined total of side yards of not less than fifty (50) feet;

C.

Rear Yard. A rear yard of not less than forty-two (42) feet.

(Ord. 88-13 § 1D, 1988: Ord. 962 § 2, 1987; Ord. 280 § 8.01(6), 1968.)

Not more than 25 percent of the lot area may be occupied by buildings and structures, including accessory buildings.

(Ord. 280 § 8.01(7), 1968.)

The R-1 zoning classification should have a minimum foundation area coverage of 1,700 square feet.

(Ord. 832 (part), 1984.)

The maximum floor area ratio for permitted uses, special uses, including accessory uses, shall be as follows:

A.

Permitted Uses.

1.

One-family detached dwellings and permitted accessory uses, 0.25,

2.

Schools, 0.5,

3.

Churches, rectories, seminaries, convents, monasteries, 0.5;

B.

Special Uses.

1.

Colleges and universities, etc., 0.5,

2.

Golf courses, as specified by the city council,

3.

Nursery schools, 0.3,

4.

Planned developments, as provided in Chapter 17.56,

5.

Public service uses, as specified by the city council.

(Ord. 280 § 8.01(8), 1968.)