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Code reviser's note: Ordinance 1504 adds these provisions as Chapter 20.84. The chapter has been editorially renumbered to prevent duplication of numbering.
The purpose of this chapter is to:
A. 
Create affordable housing units;
B. 
Allow related people to live in close proximity while maintaining separate dwelling units;
C. 
Provide homeowners with a means of companionship and security;
D. 
Provide increased choice of housing for a variety of lifestyles, including young families and retirees;
E. 
Increase density in order to better utilize existing streets, utilities, transit, and other public infrastructure; and
F. 
Ensure that accessory dwelling units (ADUs) are designed so as not to destabilize neighborhoods or lower property values.
(Ord. 1504 § 1, 2001; Ord. 1894 § 1, 2015; Ord. 2107 § 2 (Exh. A), 2025)
ADUs shall be permitted in the RS residential zones when all the ADU requirements are met.
(Ord. 1504 § 1, 2001; Ord. 1558 § 1, 2003; Ord. 1894 § 2, 2015; Ord. 2107 § 2 (Exh. A), 2025)
A complete application for an accessory dwelling unit permit shall consist of:
A. 
The name, address, phone number and email address of the applicant;
B. 
The address and legal description of the subject property;
C. 
Title report or other proof of ownership of the property;
D. 
Plans at a scale of one inch equals 10 feet, one inch equals 20 feet, or one inch equals 30 feet;
E. 
Dimension and shape of lot with adjacent street names;
F. 
Adjacent street improvements, ingress and egress;
G. 
Existing water courses, wetlands, utility lines, structures, rockeries, or other relevant manmade or natural features;
H. 
The location of required parking spaces;
I. 
Elevation plans of the existing primary dwelling unit and of the proposed new dwelling unit;
J. 
The permit fee.
(Ord. 1894 § 5, 2015; Ord. 2107 § 2 (Exh. A), 2025)
Accessory dwelling units shall meet the following standards for approval:
A. 
Be on the same lot as a larger, principal dwelling unit, whether attached to it or detached;
B. 
The size of an attached or detached ADU shall be no more than 1,000 square feet;
C. 
One off-street parking space shall be required for an ADU located on a lot less than or equal to 6,000 square feet in gross area and two parking spaces for lots greater than 6,000 square feet in gross area. These spaces shall be in addition to the spaces required for the principal dwelling unit;
D. 
Meet all building, electrical, fire, plumbing and other applicable code requirements;
E. 
Be designed to maintain the appearance of the existing single-family residence;
F. 
Be consistent with the color, roof pitch, siding and windows of the principal residence, whether the accessory dwelling unit is attached or detached;
G. 
The maximum height of an ADU shall be 25 feet.
(Ord. 1504 § 1, 2001; Ord. 1894 § 7, 2015; Ord. 2107 § 2 (Exh. A), 2025)
Utility billing and connection charges shall be based upon the number of dwelling units serviced, whether the ADU is a standalone structure or connected to the main residence.
(Ord. 1558 § 1, 2003; Ord. 2107 § 2 (Exh. A), 2025)