18.25.040 “R1-35,” “R1-20,” “R1-12,” “R1-8” and “R1-6” Low and Medium Density Residential Zoning Districts.
(A) Purpose.
(1) “R1-35” and “R1-20” Low Density Residential Zoning Districts. The purpose of these zoning districts is to provide for low density single residence development in areas where adequate public facilities and services are available. The intent of these districts is to encourage a large lot neighborhood environment where more amenities can be provided privately on the individual lots.
(2) “R1-12,” “R1-8” and “R1-6” Medium Density Residential Zoning Districts. The purpose of these zoning districts is to provide for detached single residence development on urban sized lots in areas where adequate public facilities and services are available. The intent of these districts is to encourage a traditional neighborhood environment where amenities and open space are provided more on a neighborhood basis rather than on the smaller individual lots. Lots of less than 6,000 square feet per dwelling unit shall not be permitted from and after March 1, 2016.
(B) Permitted Uses – “R1-35,” “R1-20,” “R1-12,” “R1-8” and “R1-6” Zoning Districts.
(1) One single-dwelling unit per lot of record.
(2) New duplex unit or an attached two-unit condominium on a corner lot provided the lot and the dwelling units meet the following standards:
(a) The area of the corner lot is 8,000 square feet or larger in size; and
(b) Each dwelling unit must have its address and main entrance oriented towards a separate street frontage.
(3) Public and private parks and playgrounds.
(4) Public and private open space preserves.
(5) Public and private recreational amenities and facilities.
(6) Public and private utility installations for gas, electric, water, wastewater or communications including booster stations and lift stations.
(7) Child care, home-based. Home-based child care shall comply with the State of Arizona Department of Health Services regulations for licensing.
(8) Home occupations as prescribed in Chapter 18.70 SLCC.
(9) Assisted living facilities and group care homes for the elderly and handicapped; provided, that:
(a) No such home is located on a lot that is within 1,200 feet of another group home for the handicapped and elderly care;
(b) No such home contains more than six residents;
(c) Such home is licensed by the State of Arizona Department of Health Services; and
(d) Such home is licensed with and administratively approved by the City, as to compliance with the standards of this title.
(10) Accessory buildings and accessory uses as prescribed in Chapter 18.70 SLCC.
(C) Conditional Uses – “R1-35,” “R1-20,” “R1-12,” “R1-8” and “R1-6” Zoning Districts.
(1) One accessory dwelling unit on a residential lot provided the lot and the accessory dwelling unit meet the following standards:
(a) The area of the lot is 8,000 square feet or larger in size;
(b) The accessory dwelling unit may not exceed 50% of the gross square footage of the livable area of the primary dwelling unit;
(c) The addition of the accessory dwelling unit may not cause the lot to be split; rather, the lot remains as one lot under the same ownership as that of the primary dwelling unit;
(d) The accessory dwelling unit shall be located in the buildable area of the lot;
(e) A single common driveway shall serve both the principal residence and the accessory dwelling unit; and
(f) The accessory dwelling unit must be connected to all of the primary structure’s utilities with the exception of phone and cable services;
(g) The accessory dwelling unit may not be used for any commercial or nonresidential uses.
(2) Commercial retail use provided the lot meets the following standards:
(a) The minimum area of the lot must be 8,000 square feet or larger;
(b) The lot must be a corner lot with frontage onto a roadway that is designated in the San Luis General Plan – Transportation Element as an arterial or collector roadway;
(c) The building shall comply with all setback and development standards of the residential zoning district; and
(d) The building size and permitted uses shall be limited to those allowed in the “MU” Zoning District as outlined in SLCC 18.35.040.
(3) Public schools (K-12).
(4) Private schools, including charter schools, with a curriculum substantially the same as customarily offered in public schools.
(5) Religious institutions.
(6) Publicly owned or operated library, museum, fire station, or police station.
(7) Amateur (ham) radio towers and antennas.
(8) Wireless communication towers and antennas as approved in accordance with the requirements of Chapter 18.95 SLCC.
(D) Temporary Uses – “R1-35,” “R1-20,” “R1-12,” “R1-8” and “R1-6” Zoning Districts.
(1) Model homes or temporary sales office pertaining to the sale of homes being constructed in the immediate subdivision. In the review for a model home or sales office, the City may consider lighting, landscaping, hours of operation, signage, parking, duration, and neighborhood impact. Approval may be granted for a two-year period, or until all lots in the subdivision are sold, whichever occurs first.
(2) Temporary construction site trailer pertinent to the construction of the homes and public improvements within the immediate subdivision.
(3) Temporary uses such as revivals, carnivals, circus, auctions, holidays or seasonal boutiques or tree lots in conjunction with appropriate dust control abatement.
(4) Garage sales are limited to four consecutive days conducted no more frequently than four times per year per residential location. Sales of this nature occurring beyond these limits are prohibited.
(E) Design Standards – “R1-35,” “R1-20,” “R1-12,” “R1-8” and “R1-6” Zoning Districts.
(1) All new residential developments (subdivisions) shall be subject to all requirements set forth in the San Luis Subdivision Ordinance.
(2) The residential structure should have a strong relationship to the neighborhood street. A walkway from the street to the front entry is strongly encouraged.
(3) Housing should foster a sense of neighborhood among nearby residents and a sense of community through linkage with surrounding neighborhoods.
(4) Propane tanks, water filters and similar mechanical or utility equipment shall be installed at ground level or wall mounted and shall be screened from public view and designed to appear as an integral part of the building.
(5) The residence shall have a permanent foundation and a garage or carport the design and materials of which shall be compatible with the main structure.
(6) Front porches and courtyards are strongly encouraged and should provide a pedestrian connection, other than the driveway, to the street.
(7) All residential developments, at the time of subdivision development and on a subdivision basis, within the “R1-35,” “R1-20,” “R1-12,” “R1-8” and “R1-6” Zoning Districts shall provide the minimum net acreage of open space as delineated in Table No. 2 herein. Net acres shall be defined as the total acres exclusive of the area required for arterial or collector street right-of-way dedications, any commercial or industrial lands, and school/public site reservations.
|
Zoning District |
Open Space Percentage |
|---|---|
|
“RA-10” |
0% |
|
“SR-5” |
0% |
|
“SR-2” |
0% |
|
“R1-35” |
2% |
|
“R1-20” |
2% |
|
“R1-12” |
5% |
|
“R1-8” |
5% |
|
“R1-6” |
5% |
|
Zoning District |
Minimum Lot Size (ac./sq. ft.) |
Minimum Lot Width (feet) |
Maximum Bldg. Height (feet) |
Minimum Yard Setback (feet) |
Maximum Lot Coverage |
||||
|---|---|---|---|---|---|---|---|---|---|
|
Front |
Garage Entrance |
Side |
Street Side |
Rear |
|||||
|
“RA-10” |
10 acres |
330 |
35(b) |
50 |
40 |
30 |
50 |
50 |
10% |
|
“SR-5” |
5 acres |
220 |
35(b) |
40 |
40 |
30 |
40 |
40 |
15% |
|
“SR-2” |
2 acres |
120 |
35(b) |
30 |
30 |
30 |
30 |
40 |
20% |
|
“R1-35” |
35,000 sf |
100 |
30 |
30 |
30 |
15 |
30 |
40 |
30% |
|
“R1-20” |
20,000 sf |
100 |
30 |
25 |
20 |
10(c) |
15 |
30(c) |
40% |
|
“R1-12” |
12,000 sf |
80(a) |
30 |
20 |
18 |
7(c) |
10 |
25(c) |
45% |
|
“R1-8” |
8,000 sf |
70(a) |
30 |
20 |
18 |
7(c) |
10 |
20(c) |
50% |
|
“R1-6” |
6,000 sf |
60(a) |
30 |
20(f) |
18 |
7(c) 7>X≥5(d) 5>X≥1(e) |
10 |
10(c) |
50% |
(a)Lot width on corner lots shall be increased by five feet.
(b)Accessory agricultural buildings may be permitted additional height in accordance with regulations in Chapter 18.70 SLCC.
(c)Increased setbacks for institutional uses allowed by CUP shall be increased one foot for every two feet of building height, but in no case less than 20 feet.
(d)Five-foot setbacks shall be permitted in an “R1-6” District where the construction beyond a seven-foot setback is constructed with no less than two-hour fire-resistive construction.
(e)Side yard setbacks may be reduced to one foot when proof of compliance with the International Building Code and National Fire Protection Association (NFPA 1) is provided and approved by the San Luis Building Safety Division and the Fire Department.
(f)Front setbacks may be reduced to ten feet in the “R1-6” District only for a “Driveway Shade Structure” as defined in this Code.
(Ord. 312 § 2(5.3), passed 4-11-2012; Ord. 347 § 3, passed 1-27-2016; Ord. 372 § 1, passed 11-21-2017; Ord. 440 § 2, passed 4-26-2023. Code 2012 § 152.078.)