A.   Scope: This zone shall only include federal, state, city, county, Indian and other publicly owned lands. It is intended that these lands remain as a reserve until such time they are released to the private sector, more intensive development is appropriate and the Tucson water basin has been balanced.

(Ord. 1985-187 § 1 (part), 1985)

   A.   Uses permitted:

      1.   Single detached dwelling;

      2.   Manufactured or mobile home or trailer;

      3.   Farm labor housing;

      4.   Guest dwelling: In accordance with Section 18.09.020(G) (General Residential and Rural Zoning Provisions) [proposed];

      5.   Accessory structures;

      6.   Crop production, used only for the purpose of propagation and cultivation and not for retail sales, including field crops, truck gardening, berry or bush crops, tree crops, flower gardening, nurseries, orchards, and aviaries;

      7.   Reserved;

      8.   The raising or grazing of livestock and ratites;

      9.   The raising of hogs, provided:

         a.   There are no more than five hogs over six months of age,

         b.   There is compliance with all county health department regulations;

      10.   The raising of poultry and other small animals;

      11.   Hog raising projects, which exceed the permitted number of hogs, sponsored by the 4-H Club, Future Farmers of America or other similar nonprofit organization, provided that a letter of authorization from the sponsoring organization is submitted to the department of planning and development services acknowledging that the project is in fact sponsored by the organization, describing the project and stating its length of time;

      12.   Private stable;

      13.   Commercial stable or riding school, provided all buildings be set back a minimum of one hundred feet from any property line;

      14.   Community stable: In accordance with Section 18.13.020(A)(13) (RH Rural Homestead Zone);

      15.   Farm products stand, provided:

         a.   The stand does not exceed three thousand square feet in area,

         b.   There is a minimum twenty-foot setback from any property line,

         c.   There is a minimum one hundred fifty-foot setback from any intersection,

         d.   A designated parking area to be provided that is set back a minimum of forty-five feet from the property line,

         e.   A designated driveway, no wider than thirty feet, be provided, and

         f.   The parking and driveway areas shall be maintained to minimize the generation of dust;

      16.   Animal hospital or commercial kennel, provided no structure, shelter, animal run or fenced area be within one hundred feet of any abutting property in a rural or residential zone;

      17.   Nature reserve or wildlife refuge;

      18.   Governmental uses;

      19.   Public park;

      20.   Public school;

      21.   Church;

      22.   Health clinic, provided:

         a.   There is a minimum one hundred-foot setback from any property line, and

         b.   Access is from a paved public road with "collector" classification or higher;

      23.   Temporary real estate office: In accordance with Section 18.17.010(A)(12) (SR Suburban Ranch Zone);

      24.   Home occupation;

      25.   Private airport or airstrip: Provided all requirements of Chapter 18.57 (AF Aviation Facilities and Environs Zones) are met.

(Ord. 2017-36 § 9, 2017; Ord. 1999-34 § 2, 1999; Ord. 1997-20 § 2, 1997; Ord. 1994-146 § 1, 1994; Ord. 1986-150 (part), 1986; Ord. 1985-187 § 1 (part), 1985)

   A.   Procedures: In accordance with Chapter 18.97 (Conditional Use Permits).

   B.   Uses conditionally permitted:

      1.   Agricultural processing facility, including wineries;

         a.   Type II procedure,

         b.   Minimum setback: Three hundred feet from any property line,

         c.   Notification area: Six hundred feet;

      2.   Commercial feedlot;

         a.   Type III procedure,

         b.   Minimum setback: Five hundred feet from any property line,

         c.   Notification area: One thousand feet;

      3.   Hog ranch:

         a.   Type III procedure,

         b.   Hogs be penned a minimum of five hundred feet from any property line,

         c.   Notification area: One thousand feet;

      4.   Livestock auction yard:

         a.   Type I procedure,

         b.   All structures, holding pens and areas, and show areas are set back a minimum of three hundred feet from any property line,

         c.   Provisions area made to minimize the generation of dust, and

         d.   No outdoor audio amplification shall create a nuisance to adjacent properties;

      5.   Feed store:

         a.   Type II procedure,

         b.   Access to the store be from a paved public road with "collector" classification or higher;

      6.   Racetrack for the racing of animals:

         a.   Type II procedure,

         b.   Minimum setback: Two hundred feet from any property line,

         c.   Notification area: One thousand feet;

      7.   Minor resort:

         a.   Type I procedure,

         b.   In accordance with Chapter 18.07 (General Regulations and Exceptions);

      8.   Reserved.

      9.   Fairgrounds or carnival:

         a.   Type II procedure,

         b.   Minimum setback: Two hundred feet from any property line,

         c.   Notification area: One thousand feet;

      10.   Airport facilities: In accordance with Chapter 18.57;

      11.   Skeet, trap, rifle or pistol range:

         a.   Type II procedure,

         b.   Minimum front site setback: One hundred feet, which may be used for parking or recreational facilities,

         c.   Review procedures: Type II procedure, with recommendations to the hearing administrator by the target range committee (refer to Section 18.99.040, Review Committees),

         d.   Release from liabilities: The owners or operators of a target range shall, by written agreement, indemnify and hold Pima County harmless from any liability arising from the existence, use or operation of the range. The owners or operators shall provide to the board of supervisors evidence of a valid policy of liability insurance in an amount to be determined by the county. The policy shall name Pima County, its agents, officers and employees as insureds thereunder,

         e.   Notification area: One thousand feet;

      12.   Sand and gravel operation, including asphalt and cement plants:

         a.   Type III procedure,

         b.   Minimum setback: Three hundred feet from any property line,

         c.   Controls be used to minimize the generation of dust,

         d.   Notification area: One thousand feet;

      13.   Museum:

         a.   Type II procedures,

         b.   Minimum setback: One hundred feet from any property line,

         c.   Notification area: Six hundred feet;

      14.   Zoo and other animal exhibits:

         a.   Type II procedures,

         b.   Minimum setback: One hundred feet from any property line,

         c.   Notification area: Six hundred feet;

      15.   Contractor's yard:

         a.   Type II procedure,

         b.   Minimum setback: One hundred feet from any property line,

         c.   Yard to be completely enclosed by screening a minimum of six feet in height,

         d.   Access be onto a paved public road with "collector" classification or higher,

         e.   The parking and driveway areas be maintained to minimize the generation of dust;

      16.   Real estate office:

         a.   Type I procedure,

         b.   Maximum floor area: Two thousand square feet;

      17.   Telephone or telegraph distribution installation or electrical receiving or distribution station (with or without a building):

         a.   Type II procedure,

         b.   In accordance with Section 18.07.040(B) (General Regulations and Exceptions);

      18.   Outside amplification for livestock or equestrian events: Type I procedure;

      19.   Artists or artisans workshop or studio:

         a.   Type I procedure,

         b.   Maximum floor area: Two thousand square feet;

      20.   Animal Rescue and Sanctuary Facility:

         a.   Type I procedure.

         b.   Subject to Section 18.09.020(N).

      21.   Other conditional uses: All uses which are similar in type, scale and intensity to other uses which are specifically listed as requiring either Type 1, Type 2 or Type 3 conditional use procedures and which are, in the opinion of the zoning inspector, not otherwise unlawful, injurious to the general health or welfare, or specifically excluded.

(Ord. 2009-59 § 2 (part), 2009; Ord. 2007-81 § 3, 2007; Ord. 1998-36 § 3, 1998; Ord. 1997-40 § 3, 1997; Ord. 1986-188 § 1 (part), 1986; Ord. 1986-150 (part), 1986; Ord. 1985-187 § 1 (part), 1985)

   A.   Minimum site area: Thirty-six acres (one million five hundred sixty-eight thousand one hundred sixty square feet).

   B.   Minimum site area per dwelling unit: Thirty-six acres (one million five hundred sixty-eight thousand one hundred sixty square feet).

   C.   Minimum setback requirements:

      1.   Front: Fifty feet;

      2.   Side: Fifty feet;

      3.   Rear: Fifty feet.

   D.   Height limitations:

      1.   Maximum height: Thirty-four feet;

      2.   Maximum stories: Two.

   E.   Minimum distance between main buildings: Twenty feet.

   F.   Maintenance of stock-tight fences: A stock-tight fence and necessary cattle guards shall be erected along the boundaries of any property in which livestock is pastured, herded or cared for and which abuts either a public-maintained road of abuts the boundary of any zone other than IR. This provision shall not apply to open range as determined under Arizona Revised Statutes.

(Ord. 1987-67 § 1 (part), 1987; Ord. 1985-187 § 1 (part), 1985)

   A.   Permitted coverage: Fifteen hundred square feet, or seventy percent of the area of the largest main building on the site, whichever is greater.

   B.   Height limitations: Twenty-four feet.

   C.   Minimum distance standards:

      1.   From front property line: Fifty feet;

      2.   From side and rear property lines:

         a.   Nonanimal uses: Ten feet,

         b.   Animal uses except corrals: Fifty feet,

         c.   Corrals: Ten feet.

(Ord. 2004-59 § 5, 2004; Ord. 1987-67 § 1 (part), 1987; Ord. 1985-187 § 1 (part), 1985)

   A.   Rezoning—Release of Land to Private Sector. Upon written notification by the appropriate public land management agency to the planning and development services department director that certain lands have formally been released to the private sector and a finding that the Tucson water basin is in balance, Pima County will initiate a rezoning from institutional reserve (IR) zone to rural homestead (RH) zone in accordance with the provisions of Chapter 18.91, excluding Section 18.91.030(E), plan submittals. The authorized representative of the public land management agency shall also submit any appropriate supplemental documentation and boundary maps as may be required.

   B.   Nonconforming Parcels. Parcels of less than thirty-six acres, recorded prior to the adoption of this chapter (November 5, 1985) which conformed to Pima County minimum lot size requirements at the date of recording, shall be treated as if they contained an area of thirty-six acres. However, any parcel or use created under Section 18.12.060(B) must adhere to all the requirements of Chapter 18.13 (RH Rural Homestead Zone).

   C.   Nonconforming Uses and Buildings: In accordance with Section 18.01.030(D) (General Provisions).

(Ord. 2011-2 § 5, 2011; Ord. 1988-61 § 1, 1988; Ord. 1985-187 § 1 (part), 1985)

   Reserved.