§ 154-05.03  Residential Estate Districts (RE-12, RE-18 and RE-35).
   (A)   Purpose.  The principal purpose of these districts is to provide for, conserve and protect single-family residential development where relatively large lots are suitable and appropriate, taking into consideration topographic, soil and drainage limitations, availability of public utilities and services at reasonable public costs and over-all community needs for a variety of housing types and life styles.
('80 Code, App. A, § 70)  (Ord. 583, passed 9-16-1952; Ord. O95-040, passed 9-5-1995)
   (B)   Applicability. The allowed residential density of the Residential Estates Districts shall be in conformance with the appropriate General Plan Land Use Designation and in compliance with the Zoning Conformity Matrix.
('80 Code, App. A, § 70)  (Ord. 583, passed 9-16-1952; Ord. O95-040, passed 9-5-1995)
   (C)   Permitted principal uses.
      (1)   One single-family dwelling;
      (2)   Public and private elementary and secondary schools;
      (3)   Publicly owned and operated parks, playgrounds and recreational uses;
      (4)   Residential care facility, small (SIC 8361);
      (5)   Child day care services, small (SIC 8351); and
      (6)   Community garden.
('80 Code, App. A, § 70)  (Ord. 583, passed 9-16-1952; Ord. O95-040, passed 9-5-1995; Ord. O2015-021, passed 4-15-2015)
   (D)   Permitted accessory uses.
      (1)   Accessory uses of buildings or structures customarily incidental and subordinate to any use permitted by this subchapter such as swimming pools, servant or guest quarters without kitchen facilities, private garages; as hereinafter provided, or private work shops; provided that none shall be conducted for gain or that no accessory building shall be inhabited by anyone other than those employed by the owner or tenant of the premises;
      (2)   Home occupations;
      (3)   Wall-mounted and concealed/disguised personal wireless communication facilities, in accordance with Article 19 herein, are permitted as an accessory use for legally established nonresidential uses only. Wall strapping of a personal wireless communications facility is not permitted.
         (a)   Personal wireless communication facilities are not permitted in conjunction with legal nonconforming uses.
         (b)   The use of lattice tower structures for any personal wireless communication facility is not permitted.
      (4)   In the RE-18 and RE-35 Districts only, pergolas or semi-covered structures are allowed to encroach within the rear yard setback area 10% of the rear yard setback area. The pergola or semi-covered structure must maintain a minimum ten-foot setback including overhangs from the rear yard property line. No structure may be built within any designated public utility easement that exists along any property line.
      (5)   In the RE-12 District only, accessory buildings, uses and structures are subject to the criteria specified in § 154-15.15 of this chapter.
      (6)   Accessory dwelling units.
('80 Code, App. A, § 70)  (Ord. 583, passed 9-16-1952; Ord. O95-040, passed 9-5-1995; Ord. O2000-35, passed 6-21-2000; Ord. O2002-09, passed 2-20-2002; Ord. O2004-49, passed 8-4-2004; Ord. O2014-29, passed 10-1-2014; Ord. O2017-013, passed 5-3-2017)
   (E)   Conditional uses.
      (1)   Cemetery, crematory or mausoleum;
      (2)   Public and quasi-public utility buildings and facilities when necessary for service to the surrounding territory, provided that no public business offices and no repair or storage facilities are maintained therein. Electric substations must be enclosed within a wall or fence adequate to prohibit passage of persons and to provide screening from public view;
      (3)   Child day care services, large.  Day care for six or more children is permitted upon compliance with the following:
(Ord. O2008-33, passed 8-6-2008)
         (a)   The seven standard criteria for reviewing conditional use applications (see § 154-03.05(G)(2));
         (b)   The facility must be licensed by the State Department of Health Services;
         (c)   There shall be no swimming pool on the site, unless the pool is in compliance with the current adopted Pool Safety Codes per the Arizona Revised Statutes;
         (d)   Any outside play area shall be enclosed by a five foot high solid wall or fence with self-latching gate;
         (e)   There shall be no structural additions or equipment not customarily in a residential dwelling, excepting those modifications required under state licensing, building code or fire code regulations pertaining to this class of child day service; and
         (f)   In granting any conditional use permit, the Planning and Zoning Commission may prescribe appropriate conditions and safeguards in conformity to this chapter including, but not limited to, setback and coverage requirements, off-street parking and screening structures and materials to hold to reasonable levels the impact on surrounding uses, and hours of operation.
      (4)   Religious institutions including related building and activities.
('80 Code, App. A, § 70)  (Ord. 583, passed 9-16-1952; Ord. O95-040, passed 9-5-1995)
   (F)   Property development standards.  In addition to the regulations and requirements contained in other sections of this chapter, the following minimum property development standards apply to all land and buildings in the residential estate districts as may be designated on the official zoning map.
      (1)   Lot size.  The following is the list of minimum lot sizes for each of the three residential estate districts:
         (a)   Residential Estate-35 (RE-35) District.  Thirty-five thousand square foot minimum lot size required;
         (b)   Residential Estate-18 (RE-18) District.  Eighteen thousand square foot minimum lot size required; and
         (c)   Residential Estate-12 (RE-12) District.  Twelve thousand square foot minimum lot size required.
      (2)   Lot widths.  The following is the list of minimum lot widths for each of the three residential estate districts:
         (a)   Residential Estate-35 (RE-35) District.  One hundred forty-five feet;
         (b)   Residential Estate-18 (RE-18) District.  One hundred feet; and
         (c)   Residential Estate-12 (RE-12) District.  Eighty feet.
      (3)   Lot coverage.  The following is the list of maximum lot coverage for each of the three residential estate districts:
         (a)   Residential Estate-35 (RE-35) District.  Twenty percent;
         (b)   Residential Estate-18 (RE-18) District.  Twenty-five percent;
         (c)   Residential Estate-12 (RE-12) District.  Thirty percent; and
         (d)   Exception.  The first 600 square feet of covered parking shall be permitted in addition to the maximum lot coverage percentage listed above.
      (4)   Yards.  The following is the list of minimum yard setbacks for the three residential estate districts:
         (a)   Residential Estate-35 (RE-35) District.
            1.   Minimum front yard setback.  Thirty-five feet;
            2.   Minimum side yard setback.  Twenty feet;
            3.   Minimum rear yard setback.  Thirty feet, except division (D)(4) above; and
            4.   Minimum street side yard setback.  Twenty-five feet.
         (b)   Residential Estate-18 (RE-18) District.
            1.   Minimum front yard setback.  Thirty feet;
            2.   Minimum side yard setback.  Fifteen feet;
            3.   Minimum rear yard setback.  Twenty-five feet, except division (D)(4) above; and
            4.   Minimum street side yard setback.  Twenty feet.
         (c)   Residential Estate-12 (RE-12) District.
            1.   Minimum front yard setback.  Twenty-five feet;
            2.   Minimum side yard setback.  Ten feet;
            3.   Minimum rear yard setback.  Twenty feet, except division (D)(4) above;
            4.   Minimum street side yard setback.  Fifteen feet;
            5.   Building heights.  The maximum building height in the three residential estate districts shall be 30 feet;
            6.   Landscaping and irrigation.  Landscaping and irrigation shall be provided in the manner set forth in Article 20 of this chapter; and
            7.   Off-street parking.  Off-street parking shall be provided in the manner set forth in Article 16 of this chapter.
('80 Code, App. A, § 70)  (Ord. 583, passed 9-16-1952; Ord. O95-040, passed 9-5-1995; Ord. O2004-49, passed 8-4-2004; Ord. O2006-39, passed 6-21-2006; Ord. O2010-32, passed 7-7-2010; Ord. O2010-63, passed 12-1-2010; Ord. O2010-64, passed 12-15-2010)  Penalty, see § 154-999