Chapter 18.15 — R-1 ZONE RESIDENTIAL SINGLE-FAMILY

Norco Municipal Code · 2026-07 edition · updated 2026-09-27 · Norco

§ 18.15.02. Intent and Purpose.¶

It is hereby found and declared that the City of Norco lies in a natural setting of rural, scenic and historical beauty; that this rural environment generates a strong characteristic for development of Norco as a new equestrian focal point in southern California; that this unique rural environment and historically significant location contributes a material economic advantage to the citizens, businesses, and industries within the City and particularly to the property owners who reside therein; and that development in an orderly manner with compatible uses and appearances of structures within and between zones and with the natural rural environment is necessary to maintain such historic and economic advantage, to stabilize, protect, and maintain property values, and to encourage permanence of desirable residential areas.

This zone is intended to provide for the development of single-family residential areas and to designate appropriately located areas for family living at designated population densities. The provisions of this zone are intended to ensure that the residential character of such areas will be stabilized and maintained. They are further intended to provide a basis for planning of related amenities such as parks, schools, public utilities, streets and highways, and other community facilities.

(Ord. 1019 Sec. 1, 2017)

§ 18.15.04. Sub-Zones of the R-1 Zone.¶

This zone shall be separated into sub-zones to delineate required minimum lot size. The sub-zone shall be identified by a numerical suffix after the "R-1" designation on the zoning map; and each and every area zoned R-1 in the City of Norco shall have a numerical suffix appended thereto. Said numerical suffixes shall designate the required minimum lot size in thousands of feet. For example:

R-1-10 = 10,000 square feet minimum lot size;

R-1-15 = 15,000 square feet minimum lot size;

R-1-20 = 20,000 square feet minimum lot size; etc.

§ 18.15.06. Permitted Uses.¶

The following uses are permitted and land shall be used and buildings and structures shall hereafter be erected, altered, enlarged or otherwise modified for the following uses only:

(1) Single-family detached dwellings. No more than one such dwelling shall be permitted on any lot.
(2) Public parks and playgrounds.
(3) Accessory Buildings and Uses.
- (a) Accessory buildings as regulated by Chapter 18.68 subject to the lot development standards of this zone.
- (b) Agricultural and horticultural, flower and vegetable gardening, tree crops, nurseries,

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City of Norco, CA § 18.15.06

NORCO CODE

§ 18.15.08

and greenhouses used only for the purposes of propagation and culture, including the sale thereof from the premises and the use of one sign pertaining to the sale of said products. The sign shall not exceed two square feet in area.

(c) Home occupation, as defined in Section 18.02.04(31) and subject to conformance to the criteria for home occupations provided in Chapter 18.32 and all the provisions thereof.
(4a) Small family day care homes, large family day care homes under certain conditions, residential care facilities for the elderly serving six or fewer persons, residential facilities as defined by Cal. Health and Safety Code § 1502(a)(1), serving six or fewer persons and homes for mentally or physically handicapped persons or dependent and neglected children serving six or fewer persons.
(5) Other similar uses permitted by Commission determination, in accordance with Chapter 18.42 (Similar Uses).
(6) Shoeing horses, if said use is not being conducted at a fixed place of business, which is being operated wholly or partially for farrier purposes.
(7) Farrier at a fixed place of business which is being operated wholly or partially for farrier purposes.
(8) Mobile homes, no more than one such dwelling shall be permitted on any lot, subject to all provisions of the R-l zone.
(9) Supportive housing as defined in Chapter 18.02.
(10) Transitional housing as defined in Chapter 18.02.
(11) Single-resident occupancy as defined in Chapter 18.02 and regulated by Section 18.66.06.
(12) Animal-keeping in terms of animal units as defined in Chapter 18.13 (A-1 Zone), subject to the same setback requirements of that zone but does not include commercial boarding operations, aviaries or apiaries. The minimum lot standards to allow animal-keeping on lots in the R-1 zone are:
- (a) Minimum lot size of 10,000 square feet;
- (b) Adjacency to a street that contains a public horse trail.
(13) Noncommercial animal-keeping of small animals, not otherwise defined as an animal unit, including mink, chinchilla, and other small farm animals of a similar nature.
(14) Noncommercial keeping of chickens, turkeys, or other fowl (not including roosters).
(15) Notwithstanding anything to the contrary contained herein, not more than one swine shall be allowed for each 10,000 square feet of property or any multiple thereof; and not more than one miniature pig shall be allowed for each 5,000 square feet of property or any multiple thereof.
(Ord. 277 Sec. 2, 1974; Ord. 306 Sec. 6, 1974; Ord. 471 Sec. 7, 1982; Ord. 497 Sec. 8, 1983; Ord. 818, 2004; Ord. 836 Sec. 17, 2005; Ord. 969 Sec. 1, 2014; Ord. 993 Sec. 1, 2015; Ord. 1019 Sec. 1, 2017)

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City of Norco, CA § 18.15.08

ZONING

§ 18.15.12

§ 18.15.08. Uses Which May Be Permitted by Conditional Use Permit.¶

The following uses may be permitted, subject to the approval of a conditional use permit as provided in Chapter 18.45:

(1) Public schools.
(2) Private schools providing education as required under the California State Education Code.
(3) Day nurseries or nursery schools.
(4) Public golf courses, tennis clubs, swimming clubs, and other similar recreational facilities.
(5) Churches, temples, or other places used exclusively for religious worship.
(6) Public utility uses, both publicly and privately owned.
(7) Planned residential developments may be approved if a PD overlay zone has been applied for pursuant to Chapter 18.27.
(8) "Miniaturized" pigs, as defined in Section 18.02.04(50.2), subject, but not limited, to the following:
- (a) Only one "miniaturized" pig allowed for each developed residential lot;
- (b) No breeding of "miniaturized" pigs shall be allowed;
- (c) Proof shall be provided from a licensed veterinarian that the miniaturized pig has been neutered or spayed;
- (d) Provisions of adequate fencing to maintain "miniaturized" pig.
- (e) "Miniaturized" pigs when off the owner's property, must be under the control of a competent person and on a leash. Pigs will be considered loose livestock when running at large and cited as such.
- (f) The conditional use permit shall be reviewed annually, with an inspection fee paid by the applicant. The property approved for the "miniaturized" pig shall be subject to inspection by Animal Control.
(Ord. 691, 1995)

§ 18.15.10. Lot Area.¶

All lots in this zone shall contain a minimum lot area as prescribed by the suffix applicable thereto; provided, that there shall be at least 10,000 square feet in all lots hereafter created, and no lot in this zone shall be reduced below this minimum.

§ 18.15.12. Lot Dimensions.¶

All lots shall maintain the following minimum standards and no lot shall be created which does not satisfy these standards:

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City of Norco, CA

NORCO CODE

§ 18.15.12

§ 18.15.28

(1) Width and Frontage: Minimum of 80 feet. (2) Cul-de-sac Lots: Minimum average width of 80 feet and minimum frontage of not less than 50 feet.

(3) Depth: Minimum depth of 100 feet.

(2) Side yard:
- (a) Interior:
  - (i) All lots of 10,000 square feet or less; a minimum of five feet.
  - (ii) All lots over 10,000 square feet shall have the width of one side yard no less than five feet and the width of the other side yard shall have such a dimension that the sum of the widths of the two yards shall be no less than 20 feet; provided, however, the width of the other yard shall not be less than 12 feet.
- (b) Corner Side: A side yard on the street side of 20 percent of the lot width but not more than 15 feet need be provided.
(3) Rear Yard: Minimum of 15 feet.
(Ord. 264 Sec. 2, 1973; Ord. 286 Sec. 2, 1975; Ord 364 Sec. 1(c), 1976; Ord. 604 Sec. 1, 1990)

§ 18.15.18. Permitted Heights.¶

The maximum height of any main building shall be two and one-half stories or 35 feet, whichever is less. The maximum height of an accessory building shall be per the regulations of Chapter 18.68.

(Ord. 1019 Sec. 1, 2017)

§ 18.15.20. Permitted Coverage.¶

The maximum lot coverage of all structures shall be not more than 50 percent of the total lot area. All in-ground pools and spas along with a five-foot coping around the perimeter of said structures shall be included in the building coverage calculations.

(Ord. 499, Sec. 6, 1983; Ord. 741, Sec. 4, 1999; Ord. 1019 Sec. 1, 2017)

§ 18.15.22. Distance Between Buildings.¶

The minimum space between separate buildings on the same lot shall be 10 feet.

§ 18.15.24. Walls, Fences, and Structures in the Setback Areas.¶

The provisions of Section 18.31.08 (Walls, Fences, and Structures in the Setback Areas) shall apply.

§ 18.15.26. Off-Street Parking.¶

The provisions of Chapter 18.38 (Off-Street Parking) shall apply. No required front or corner side yard shall be used for parking.

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City of Norco, CA § 18.15.28

ZONING

§ 18.15.32

§ 18.15.28. Size of Dwellings.¶

Every single-family dwelling having two bedrooms or less shall have a floor area of not less than 1,100 square feet, exclusive of porches and garages. All other single-family dwellings shall have a minimum floor area of not less than 1,300 square feet, exclusive of porches and garages. The architecture and general appearance of such building shall be in keeping with the character of the neighborhood and such as not to be detrimental to the general welfare of the community in which it is located.

§ 18.15.32. Signs.¶

The provisions of Chapter 18.37 (Signs) shall apply.

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City of Norco, CA

ZONING

§ 18.16.10

§ 18.16.50

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