It is conducted entirely within the dwelling and only by members of the family residing in the dwelling, and when such home occupation is incidental and secondary to the use of the dwelling for dwelling purposes.[2]

There are no signs, display or activity that will indicate from the exterior that the building is being used, in part, for any purpose other than that of a dwelling, except one sign, not more than one square foot in area.[3]

There are no commodities sold, or services rendered that require receiving or delivery of merchandise, goods, or equipment on a regular daily or semiweekly basis.

There is no more than one additional person, other than a member of the immediate family residing on the premises, employed or otherwise engaged in the home occupation.

All activity, including storage, is conducted completely within the dwelling unit, attached garage or detached garage.

There are no special structural alterations, or construction features, to the dwelling, attached garage or detached garage.

There is no perceptible noise, odor, smoke, electrical interference or vibration emanating from the structure.

There are no more than six customers or clients on the premises at the same time.

There is no activity between the hours of 11:00 p.m. and 7:00 a.m.

In order to perpetuate and encourage the reservation of substantial open land for recreation and similar activities, a procedure is hereby established to modify the bulk regulations of this chapter applicable to subdivisions and planned developments which reserve areas for such purposes. The exceptions to the bulk regulations of this chapter which are permitted shall be applied to subdivisions and planned developments in residence districts that provide permanent open space. To qualify for exemptions to bulk regulations, the subdivision or planned development must:[4]

The exception to the bulk regulations of this chapter which are permitted to be applied to subdivisions or planned developments in residence districts when permanent open space is provided are as follows:

In all residence districts, there shall be provided and perpetuated on every lot, used in whole or in part for dwelling purposes, minimum usable open space as follows:

Where any required off-street parking spaces are located in a principal building directly below the dwelling units; the square feet of floor area occupied by such interior off-street parking spaces and access aisles may be added to the square feet contained on the lot, the sum of which would represent the lot area used for determining lot area per dwelling and floor area ratio requirements.

Single-family detached dwellings.

Agriculture, on a tract of land 20 acres or more in area.

Churches, temples, or synagogues, on a lot not less than two acres in area.

Golf courses, regulation size, but not including "par 3" golf courses, commercially operated driving ranges, or miniature golf courses; and provided that no clubhouse or accessory building shall be located less than 200 feet from a lot line.

Parks, playgrounds, and recreational areas, public.

Schools, public or denominational, nonboarding, elementary, junior high, and high.

Seminaries, convents, monasteries, and similar religious institutions.

Temporary buildings for construction purposes for a period not to exceed such construction.

Accessory uses.

Group homes, subject to the following:

Cemeteries, including crematories and mausoleums, on a lot not less than 20 acres in area, and provided no building shall be located less than 300 feet from a lot line.

Home occupations.

Planned developments.

Private recreational areas or camps, when not operated for profit, on a lot not less than 20 acres in area.

Public utility and governmental service uses. Lot areas and lot width for the following uses shall be as recommended by the Plan Commission and approved by the City Council and may be lesser or greater in area or width than herein required in the district regulations:

Railroad rights-of-way and trackage, but not including classification yards, terminal facilities, or maintenance facilities.

School, parochial or private, boarding.

Group homes that are not licensed or certified by the State of Illinois, or those that are licensed and have more than six persons, subject to the following: a minimum distance of 1,300 feet is maintained between group homes and the group home conforms to all provisions outlined in the ordinances of the City of Mendota or state licensing standards, if applicable to the use. Said use shall only be permitted after following the conditional use procedure outlined in Article X, § 340-57, Conditional uses, of this chapter.

Single-family detached dwellings: not less than one acre; except when served by public or community sewer and water systems, the lot area may be reduced to 12,000 square feet.

Nonresidential uses: not less than five acres unless otherwise specified.

Single-family detached dwellings: not less than 150 feet; except a lot served by public or community sewer and water systems may be reduced to 80 feet in width.

Nonresidential uses: not less than 300 feet.

Single-family detached dwellings: not more than 2 1/2 stories or 25 feet, whichever is lower.

Nonresidential uses: not more than three stories or 35 feet, whichever is lower.

One-story dwelling: not less than 1,120 square feet.

Dwellings having more than one story:

Single-family detached dwellings: not applicable.

Nonresidential uses: not more than 0.2.

Front yard: not less than 30 feet.

Side yards: two side yards, each not less than 10 feet in width; except on corner lots, the side yard adjoining a street shall be not less than 30 feet in width.

Rear yard: not less than 50 feet.

Yards, general, nonresidential uses. For buildings more than 25 feet in height, each side yard as required above shall be increased in width or depth by two feet for each additional one foot of building height over 25 feet.

As in the R-1 District.

Single-family semidetached housing.

As in the R-1 District.

Colleges or universities and accessory uses, including housing for students, faculty, and others employed on the premises, on a lot not less than 10 acres in area.

Hospitals, on lots not less than five acres in area.

Medical service uses, for offices of a person or group licensed by the State of Illinois which includes, but is not limited to, physicians, dentists and chiropractors, provided that:

Outdoor recreation, private or public, on a lot not less than five acres in area; one or more of the following uses: conservation clubs; Girl Scout and Boy Scout lodges or clubhouses; private parks or playgrounds; archery ranges; and other outdoor recreation uses as approved by the City Council; accessory structures and uses such as off-street parking and loading facilities, administration, maintenance and clubhouse buildings, provided such accessory buildings are located at least 100 feet from any boundary line of the lot, and open off-street parking and loading facilities are at locations on the lot as approved by the City Council.

Planned developments.

Schools, boarding, elementary, junior high, or high.

Counseling

Single-family detached dwellings: not more than 2 1/2 stories or 25 feet, whichever is lower.

Nonresidential permitted uses and conditional uses: not more than 40 feet.

Single-family detached dwellings: not applicable.

Nonresidential permitted uses and conditional uses: not more than 0.2.

Front: not less than 30 feet.

Side.

Rear: not less than 40 feet.

Single-family detached dwellings.

Two-family dwellings.

Churches, temples, or synagogues.

Home occupations.

Parks, playgrounds and recreation areas, public.

Real estate sales buildings for a period of not more than two years.

Schools, public or denominational, not boarding, elementary, junior high, and high.

Temporary buildings for construction purposes for a period not to exceed such construction.

Accessory uses.

Single-family semidetached housing.

Single-family detached dwellings: not less than 6,000 square feet.

Single-family semidetached dwellings: not less than 5,000 square feet for each dwelling (10,000 square feet total).

Two-family dwellings: not less than 4,000 square feet for each dwelling.

Nonresidential uses: not less than 15,000 square feet unless otherwise specified.

Single-family detached dwellings: not less than 60 feet.

Single-family semidetached dwellings: not less than 80 feet.

Nonresidential uses: not less than 100 feet.

One-story detached dwellings: not less than 850 square feet.

Dwellings having more than one story: not less than 625 square feet for a 1 1/2 story dwelling.

Two-family dwellings: not less than 675 square feet per dwelling.

Single-family detached dwellings: not applicable.

Nonresidential uses: not more than 0.4.

Front yard: not less than 30 feet.

Side yards: two side yards having a combined width of 16 feet and of which one side yard shall be not less than six feet in width; except where a side yard adjoins a street, the minimum width shall be not less than 30 feet.

Rear yard: not less than 40 feet.

Yards, general, nonresidential uses. For buildings more than 25 feet in height, each side yard as required above shall be increased in width or depth by two feet for each additional one foot of building height over 25 feet.

As in the R-1 District.

Single-family attached and semidetached dwellings, located on a lot with one or more principal detached buildings initially under unified ownership or control, provided that there are not more than eight dwelling units attached side by side, and provided further that there are not more than 16 dwelling units contained in any structure.

Multiple-family dwellings, located on a lot with one or more principal detached buildings initially under unified ownership or control, and containing no more than 24 dwelling units in any building.

Municipal buildings. All activities shall be conducted within completely enclosed buildings, except off-street parking and loading.

As in the R-2 District.

Mobile home parks, on a lot not less than 10 acres in area. Each mobile home park shall be processed as a planned development and shall contain, as a minimum, municipal-type sanitary sewerage, storm sewers, and water systems; paved service drives; off-street parking of no less than 1 1/2 spaces for each mobile home; grading and landscaping; buildings containing laundry and office facilities. All improvements shall be constructed in accordance with development plans and specifications approved by the Plan Commission.

Radio station offices and other related, similar uses.

Single-family detached dwellings: not less than 6,000 square feet.

Single-family semidetached: not less than 3,000 square feet.

Single-family attached: not less than 2,500 square feet.

Single-family detached dwellings: not less than 60 feet.

Single-family semidetached dwellings: not less than 30 feet.

Single-family attached dwellings: not less than 20 feet.

Multiple-family dwellings: not less than 90 feet.

Single-family attached and semidetached dwellings: not more than 27 feet or two stories, whichever is lower.

Multiple-family dwellings: not more than 32 feet or three stories, whichever is lower.

Nonresidential uses: not more than 40 feet.

Single-family dwellings: not applicable.

Multiple-family dwellings and nonresidential uses: not more than 0.4.

Three-bedroom (or more) dwellings: not less than 900 square feet.

Two-bedroom (or less) dwellings: not less than 700 square feet.

Multiple-family dwellings.

Single-family detached dwellings.[3]

Single-family semidetached dwellings.

Single-family attached dwellings.

When the front wall of a building faces the front wall or rear wall of the nearest building, the distance between the two building walls shall be not less than 60 feet.

When the rear wall of a building faces the rear wall of the nearest building, the distance between the two building walls shall be not less than 50 feet.

When the side wall of a building faces the front or rear wall of the nearest building, the distance between the two building walls shall be not less than 40 feet.

When the side wall containing not more than two windows on a floor that are not from bathrooms or storage rooms faces such side wall of the nearest building, the distance between the two building walls shall be not less than 20 feet. When the facing side walls of each of such buildings contain more than two such window openings on a floor that are not bathrooms or storage rooms, or when either side wall contains a main entrance doorway, the distance between walls shall be not less than 40 feet.[5]

A wall of a detached building forming the end of a court shall be not less than 10 feet from the nearest wall of a building forming the sides of the court, and a building forming the end of the court may be attached to one or both of the buildings forming the sides of the court, provided the distance between facing walls of the buildings forming the sides of the court is not less than the applicable requirements as set forth above.

Where buildings are not parallel to each other, the required spacing shall be measured at the midpoint of the distance along which they face each other; however, the spacing between the buildings at the narrowest point shall in no event be less than 1/2 the required distance.