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Hawthorne City Zoning Code

CHAPTER 17

21 ACCESSORY DWELLING UNITS

§ 17.21.010 Purpose.

The purpose of this chapter is to establish regulations for the development of accessory dwelling units and junior accessory dwelling units as defined in this chapter and in California Government Code Sections 65852.2 and 65852.22, or any successor statute.
(Ord. 2205 § 8, 2020)

§ 17.21.020 Definitions.

"Accessory dwelling unit" or "ADU"
means an attached or detached residential dwelling unit that provides complete independent living facilities for one or more persons and located on the same lot as a proposed or existing primary residence, which may be a single or multifamily dwelling, and has a separate, exterior entrance than that of the primary residence. It includes permanent provisions for living, sleeping, eating, cooking, and sanitation. It shall have the same meaning as that term is defined in California Government Code Section 65852.2, as amended from time to time.
"Existing accessory structure"
means an accessory structure, as defined in this chapter, which was legally established and existing prior to the submittal of an ADU or JADU application.
"Junior accessory dwelling unit" or "JADU"
means a unit that is no more than five hundred square feet in size and contained within the living area of a single-family residence, and has independent exterior access. A junior accessory dwelling unit may include separate sanitation facilities, or may share sanitation facilities with the existing structure, but shall include an efficiency kitchen that provides for a cooking facility with appliances and a food preparation counter and storage cabinets that are of reasonable size in relation to the size of the junior accessory dwelling unit.
"Living area"
means the interior habitable area of a dwelling unit, including basements and attics, but does not include a garage or any accessory structure.
"Mixed-use"
for purposes of ADU development, means a development that combines residential land use with one or more additional land uses where uses are physically and functionally integrated (horizontally or vertically), and developed pursuant to City of Hawthorne Municipal Code Chapter 17.87.
"Multifamily dwelling"
pursuant to for purposes of ADU development means a building, other than a hotel or motel, with two or more attached dwelling units used to house two or more families, living independently of each other.
"Public transit"
means a location, including, but not limited to, a bus stop or a train station, where the public may access buses, trains, subways and other forms of transportation that charge set fares, run on fixed routes, and are available to the public.
"Single-family residence"
means a residential building containing one or more habitable rooms with only one kitchen, designed for occupancy by one independent household unit with common access to, and common use of all living, kitchen, and bathroom areas.
"Tandem parking"
means that two or more automobiles are parked on a driveway or in any other location on a lot, lined up behind one another.
(Ord. 2205 § 8, 2020)

§ 17.21.030 Permit requirement.

A. 
Accessory Dwelling Unit Permit. An accessory dwelling unit permit is required for construction of an accessory dwelling unit or junior accessory dwelling unit or the modification of exterior features, size, or height of an existing accessory dwelling unit or junior accessory dwelling unit.
B. 
Building Permit. A building permit shall be required for construction or modification of an accessory dwelling unit or junior accessory dwelling unit as set forth in the California Residential Code and other building standards adopted by the city.
(Ord. 2205 § 8, 2020)

§ 17.21.040 Permit application and review procedures.

A. 
The director of planning and community development, or designee, shall review and approve or deny ministerial permits for ADUs and JADUs upon determining whether the application submitted is complete, the proposed unit conforms to all requirements of this code, and a non-refundable application review fee in the amount established by the city council, amended from time to time, has been paid. Applications deemed incomplete or not in full conformance with the requirements of this code will be rejected. The director will review the application without notice or public hearing. The time period for review may be tolled at the request of the applicant.
B. 
Decision. The director shall render a decision in writing and shall state the reasons for approval or denial. The decision of the director shall be final.
(Ord. 2205 § 8, 2020)

§ 17.21.050 Zoning and applicability.

A. 
An ADU or JADU is permitted in any residential or mixed-use zone that allows residential units.
B. 
Sites developed or proposed to be developed with a single-family residence shall not be permitted more than one ADU.
C. 
Sites developed with a multifamily building may convert existing non-habitable square footage within the building to a minimum one ADU and a maximum that shall not exceed twenty-five percent of the number of units on the site. Sites developed with a multifamily building are also permitted to construct two ADUs or to convert detached accessory buildings, garages, carports, or covered parking structures to a maximum of two ADUs.
D. 
A maximum of one JADU shall be permitted on a site developed or proposed to be developed with a single-family residence, unless the subject site proposes or contains an attached ADU. In such cases, a JADU shall not be permitted.
(Ord. 2205 § 8, 2020)

§ 17.21.060 ADU and JADU development standards.

The development standards in Table 17.21.060 shall be applicable to all accessory dwelling units and junior accessory dwelling units. Additional provisions related to accessory dwelling units are referenced in the "Additional Provisions" column of the table. Such provisions may include references to other applicable code sections or limitations.
Table 17.21.060 ADU and JADU Development Standards
Specific Regulations
ADU
JADU
Additional Provisions
Attached
Detached
Minimum Size
220 sf
220 sf
220 sf
 
Maximum Size
1,000 sf
1,000 sf
500 sf
(1) (2) (3) (4)
Maximum Height
16 ft and 1 story
16 ft and 1 story
Same as primary building
 
Minimum Side Yard Setback
4 ft
4 ft
Same as primary building
(5)
Minimum Rear Yard Setback
4 ft
4 ft
Same as primary building
(5)
Maximum Lot Coverage/Use Intensity
Same as zoning district
Same as zoning district
Same as zoning district
(6)
Open Space
500 sf
500 sf
-
(7)
Separation from Accessory Buildings
6 ft
6 ft
-
(8)
Separation from Primary Buildings
-
6 ft
-
(8)
Minimum parking
1 space
1 space
-
(9)(10)(11)
Tandem Parking
Permitted
Permitted
Permitted
 
Notes:
(1)
An attached accessory dwelling unit may be 50% of the habitable space of the primary dwelling unit on the site, not to exceed 1,000 square feet in size or two bedrooms, except where a restriction to 50% of existing living area would result in a maximum size of less than 800 square feet, an attached accessory dwelling unit of no more than 800 square feet shall be permitted.
(2)
ADUs may not exceed 800 square feet in size in cases where both an ADU and JADU are developed or proposed on a site.
(3)
Existing accessory structures may be converted into an ADU and may be expanded by up to 150 square feet of the existing footprint to accommodate ingress and egress only.
(4)
A junior accessory dwelling unit shall be constructed within the existing space of the proposed or existing single-family dwelling or accessory structure, however, an expansion of not more than 150 square feet beyond the same physical dimensions of the existing space of a single-family dwelling shall be permitted for purposes of accommodating ingress and egress.
(5)
No setback is required to construct an accessory dwelling unit within an existing structure that is converted to an accessory dwelling unit or a new structure constructed in the same location and the same dimension as an existing structure.
(6)
Lot coverage and use intensity maximum established in zoning district may be exceeded to permit an ADU up to 800 square feet in size. This provision shall not apply to conversions of existing buildings.
(7)
Required open space may be reduced to permit an ADU up to 800 square feet in size. Open space requirement shall only apply to properties developed or proposed to be developed with a single-family residence. This provision shall not apply to conversions of existing buildings.
(8)
Separation requirement may be reduced to permit an ADU up to eight hundred square feet in size. Separation shall be measured from the nearest points between the structures. This provision shall not apply to conversions of existing buildings.
(9)
No parking for the ADU is required if one or more of the following applies:
  
a.
The ADU is located within ½ mile walking distance of public transit.
 
b.
The ADU is located within an architecturally and historically significant historic district.
c.
The ADU is part of the proposed or existing primary residence or an accessory structure.
  
d.
When on-street parking permits are required but not offered to the occupant of the ADU.
 
e.
When there is a car share vehicle located within one block of the ADU.
(10)
When a garage, carport, or covered parking structure is demolished in conjunction with the construction of an accessory dwelling unit or converted to an accessory dwelling unit, the city shall not require the replacement of off-street parking spaces.
(11)
The driveway leading up to the garage may serve as replacement parking, provided vehicles can safely navigate for purposes of ingress and egress, or as otherwise required by applicable provisions of this chapter.
(Ord. 2205 § 8, 2020)

§ 17.21.070 Additional ADU and JADU requirements.

A. 
Subdivision. No subdivision of land is authorized that would result in an accessory dwelling unit being located on a separate parcel, unless each parcel meets all of the zoning requirements for the zoning district in which it is located.
B. 
Architectural Compatibility. Accessory dwelling units shall be located to the rear of the primary residence, and not viewable from the public right-of-way. When visible from the public right-of-way (including from a public alley), the architectural design of an attached or detached ADU shall be visually compatible with the primary dwelling unit and with the neighborhood character.
C. 
Fire Sprinklers. Fire sprinklers are required in an ADU if sprinklers are required in the primary residence.
D. 
Landscaping. An accessory dwelling unit eight hundred square feet in floor area or less, shall have no minimum landscape area. Minimum landscape area for an accessory dwelling unit greater than eight hundred square feet in floor area shall be that of the underlying zoning district.
E. 
Certificate of Occupancy. The building official shall not issue a certificate of occupancy for an accessory dwelling unit before issuance of a certificate of occupancy for the primary dwelling.
F. 
Nonconforming Zoning Conditions. The city shall not require as a condition for approval of a permit application for the creation of an accessory dwelling unit or a junior accessory dwelling unit the correction of nonconforming zoning conditions.
G. 
Utility Connections. For accessory dwelling units described in Government Code Section 65852.2(1)(A), the accessory dwelling unit or junior accessory dwelling unit shall not be required to install a new or separate utility connection directly between the accessory dwelling unit or junior accessory dwelling unit and the utility, and the accessory dwelling unit or junior accessory dwelling unit shall not be subject to a related connection fee or capacity charge, unless the accessory dwelling unit is constructed.
H. 
Rental Term. ADUs and JADUs may be rented but shall not be used for rentals for term less than thirty consecutive days.
I. 
No Separate Conveyance. An ADU or JADU may be rented, but no ADU or JADU may be sold or otherwise conveyed separately from the lot and the primary dwelling (in the case of a single-family lot) or from the lot and all of the dwellings (in the case of a multifamily lot).
J. 
Owner Occupancy. Owner-occupancy shall not be required if the owner is a government agency, land trust, or housing organization.
K. 
Historic Properties. ADUs and JADUs shall conform to the United States Secretary of Interior's Official Standards for the Treatment of Historic Properties.
(Ord. 2205 § 8, 2020)

§ 17.21.080 Deed restriction.

Prior to the issuance of a building permit for a JADU, a deed restriction must be recorded against the title of the property in the county recorder's office and a copy filed with the director of planning and community development. The deed restriction shall run with the land and bind all future owners. The form of the deed restriction will be provided by the city and must provide that:
A. 
The JADU shall not be sold separately from the primary dwelling.
B. 
The unit is restricted to the approved size and attributes of this chapter.
C. 
The covenant restrictions run with the land and may be enforced against future purchasers.
D. 
The covenant restrictions may be removed if the owner eliminates the JADU, as evidenced by, for example, removal of the kitchen facilities. To remove the deed restriction, an owner may make a written request of the director of planning and community development, providing evidence that the JADU has in fact been eliminated. Any building permits required in the removal must be approved prior to the director's determination. The director may then determine whether the evidence supports the claim that the JADU has been eliminated. Appeal may be taken from the director's determination consistent with other provisions of this code. If the JADU is not entirely physically removed but is only eliminated by virtue of having a necessary component of a JADU removed, the remaining structure and improvements must otherwise comply with applicable provisions of this code.
E. 
The deed restriction is enforceable by the director of planning and community development or designee for the benefit of the city. Failure of the property owner to comply with the deed restriction may result in legal action against the property owner, and the city is authorized to obtain any remedy available to it at law or equity, including, but not limited to, obtaining an injunction enjoining the use of the JADU in violation of the recorded restrictions or abatement of the illegal unit.
(Ord. 2205 § 8, 2020)