§ 17.260.015 RESIDENTIAL ZERO SETBACK OVERLAY (-RZ).
   A.    Uses Permitted.
      1.    One dwelling unit per lot.
      2.     Accessory buildings and structures, provided no such building or structure shall be designed or used for dwelling purposes.
      3.    Public uses and buildings, including libraries, museums, parks, playgrounds, schools and community buildings owned and controlled by the City or school district, if their location is first approved by the Council.
      4.     The renting of rooms or the providing of table board to not more than 2 persons is permitted, provided said rooms shall be within the dwelling structure and not within an accessory building.
   B.   Lot Dimensions.
      1.    Area. Each lot shall have an area of not less than 5,000 square feet.
      2.    Frontage. The minimum frontage of a lot shall be 35 feet. A non-rectangular lot on a cul-de-sac turn around, knuckle, or on the outside radius of a street curve, with a radius of not more than 50 feet, shall have a street frontage of not less than 25 feet.
      3.    Width and depth. Every lot recorded after September 10, 1984, shall have a lot depth approximately twice its width, or vice versa (a 2:1 or 1:2 ratio), except lots that, in the opinion of the Commission or Council, are constrained by unusual configuration limitations resulting from steep topography, remote access, cul-de-sac turn around, or other extraordinary physical characteristics shall not be strictly held to this requirement.
      4.   Dwelling floor area. Each dwelling shall have a ground floor area of not less than 900 square feet and a total floor area of not less than 1,700 square feet. Said area requirements shall be determined as measured from exterior walls, and shall be exclusive of the garage and any porches, patios, balconies or similar architectural features not providing living space internal to the dwelling.
   C.    Dwelling Height. No dwelling structure shall exceed 2 stories or 30 feet in height, provided that roof-mounted antennae may extend a maximum of 15 feet above the highest roofline of the building upon which it is attached.
   D.    Yard Building Setbacks. Each lot shall have 1 side and a rear yard of not less than 10 feet, and a front yard of not less than 13 feet, except that:
      1.     Garages shall be located to allow a paved on-lot driveway of not less than 23 feet in length and 16 feet in width.
      2.    Street-abutting side yards shall be not less than 8 feet, and side yards abutting property not in the Residential Zero Setback Overlay (-RZ) shall not be less than 5 feet.
      3.    An average front building setback for both first and second dwelling stories of not less than 18 feet shall be provided.
      4.    An average 1 side or rear building setback for both first and second dwelling stories of not less than 15 feet shall be provided.
      5.    Notwithstanding any other provision of this Title, wholly or partially contiguous, residentially zoned lots or portions of lots, which have been improved or are proposed to be improved as a single and unified multiple-lot residential development, may be considered as a single parcel for the purpose of applying the setback requirements as provided in this Section. The Director or Commission may waive non-street-facing setback requirements for common interior lot lines within the parcel, provided all the following conditions are met:
         a.     Setback requirements established by this Section are applied to the perimeter lot lines;
         b.    The property owner executes and records a covenant, in a form approved by the City, to hold all lots or portion as 1 parcel.
         c.   The property owner dedicates a portion of the parcel, pays a fee or does both, for the purpose of providing park and recreational facilities to serve future residents of the multiple lot residential development, in accordance with § 15.10.765 of the CCMC.
   E.    Separation Between Dwellings on Adjacent Lots. There shall be an open space area on each lot of not less than 600 square feet, with no dimension less than 20 feet, except non-rectangular lots located on a cul-de-sac turn around or knuckle shall have no dimension less than 15 feet. This open space area shall be exclusive of required front and street abutting side yards and vehicular driveways, and further, shall be subject to the following:
      1.   The required open space may include side or rear yards.
      2.     Pools and paved recreational areas may be developed in the required open space.
      3.    The gradient or slope of any required open space shall not exceed 10%. The open space may be provided on a deck.
      4.    Such open space shall be fully open to the sky, except that architectural projections are permitted as set forth in § 17.300.020 (Setback Regulations and Exceptions).
      5.   An accessory building may not occupy any part of the required open space.
      6.     When adjacent to the required front yard, the required open space shall be screened from the street with a fence or wall, the design of which has been approved by the Director.
      7.    Pavement in a required front or street-abutting side yard shall not exceed 60% of the required area, except that in non-rectangular lots on a cul-de-sac turn around, knuckle, or on the outside radius of a street curb for the radius of not more than 50 feet, shall not exceed 75% of the required area.
   F.   Off-Street Parking. When provided, parking shall comply with the standards and requirements set forth in Chapter 17.320 of this Title.
   G.   Accessory Structures. Notwithstanding § 17.400.100 (Residential Uses - Accessory Residential Structures), accessory structures shall be subject to the following requirements:
      1.     No such structure shall be located within a required front or street-abutting side yard.
      2.    No such building or structure shall be located within 5 feet of a dwelling or another structure not within 2 feet of any interior property line.
      3.     No such structure shall exceed 10 feet in height without a Conditional Use Permit.
   H.   Special Conditions.
      1.   Building walls within 4 feet of and facing an interior property line shall have no openings, and shall be waterproofed as required by the Building Safety Division, except that walls within 2 feet of an interior property line shall be fully waterproofed.
      2.   All exterior ground-mounted or roof-mounted appurtenant equipment, such as but not necessarily limited to, water heaters, air conditioners, ducting, and swimming pool pumps, shall be screened from view from adjoining properties and rights-of-way in a manner consistent with City standards as determined by the Director. Said equipment shall also be sheltered, insulated or otherwise baffled as necessary to conform to the noise regulations and standards of the CCMC.
      3. The minimum site area of an -RZ overlay shall be 5 acres.
   I.   Supplementary Regulations for 4,000 square foot Residential Zero Setback Overlay (-RZ) Subdivisions. The regulations of this section shall apply to Residential Zero Setback (-RZ) lots of less than 5,000 feet. The regulations of Subsections 17.260.015 A.-G., shall apply also, except that this Subsection shall supersede in event of conflict.
      1.   Lot dimensions.
         a.    Area. Each lot shall have an area of not less than 4,000 square feet.
         b.    Width and depth. Every lot recorded after September 10, 1984, shall have a lot depth approximately twice its width, or vice versa (a 2:1 or 1:2 ratio), except that lots that, in the opinion of the Commission or Council, are constrained by unusual configuration limitations resulting from steep topography, remote access. cul-de-sac turn around, or other extraordinary physical characteristics shall not be strictly held to this requirement.
         c.   Dwelling floor area. Each dwelling shall have a total floor area of not less than 1,400 square feet.
      2.   Yard building setbacks.
         a.     Garages shall be located to provide a paved driveway of not less than 20 feet in length, as measured from the inside edge of the public sidewalk to the garage door.
          b.   Subsection 17.260.015.D.4 (Yard Building Setbacks), requiring an average 15 foot side or rear yard, shall not apply.
      3.   Open space. No dimension of the required open space shall be less than 10 feet.
(Ord. No. 2005-007 § 1 (part); Ord. No. 2022-008)