General ADU Requirements.
(a) Location. An Accessory Dwelling Unit is permitted in any zone that
allows residential units. ADUs shall be located on a property with
a primary dwelling and shall be located such that the front facade
is farther from the front Property line than the primary dwelling.
Number of ADUs. No more than one junior accessory dwelling unit and
one accessory dwelling unit are permitted on a single lot with a single
family dwelling. Lots with existing multifamily dwellings shall have
a number of internal or attached accessory dwelling units equal to
twenty-five percent of the existing multifamily dwelling units. Fractions
of units of one-half and above shall be rounded up. Accessory dwelling
units may include portions of dwelling structures that are not used
as livable space, including, but not limited to, storage rooms, boiler
rooms, passageways, attics, basements, or garages; provided, that
each unit complies with state building standards for dwellings. At
least one accessory dwelling unit shall be permitted per lot within
existing multifamily dwellings. Not more than two detached accessory
dwelling units shall be permitted on lots with existing multifamily
dwellings.
(1)
Every ADU shall contain a minimum of five hundred square feet.
(2)
The size of a detached ADU shall not exceed one thousand square
feet or one hundred percent of the primary dwelling unit size, whichever
is less. If the primary dwelling unit size is less than eight hundred
fifty square feet, the maximum size of the detached ADU shall not
exceed eight hundred fifty square feet.
(3)
Attached ADUs shall be limited to eight hundred fifty square
feet or fifty percent of the primary dwelling unit size, whichever
is less.
(4)
All ADUs are subject to Section
12-6 of Chapter 12 of the IMC.
(b) Setbacks.
(1)
Front Setback - Attached and Detached ADUs. There shall be a
front yard of not less than twenty-five percent of the depth of the
lot provided such front yard need not exceed twenty-five feet except
where lots comprising forty percent or more of the frontage on one
side of a street between intersecting streets are developed with buildings
having an average front yard with a variation of not more than six
feet, no building hereafter erected or structurally altered shall
project beyond the average front yard line so established.
(2)
Side Setback. There shall be a side yard on each side of the
main building of not less than ten percent of the width of the lot,
but such side yard shall not be less than three feet and need not
exceed five feet in width.
(3)
Rear Setback. The rear setback shall not be less than four feet.
(c) Height.
(1)
A detached ADU on a single family or multifamily lot shall not
exceed one story or sixteen feet to the top of the roof pitch.
(2)
An attached ADU to an existing primary dwelling shall not exceed
the allowed height for the primary dwelling.
(d) Design Standards.
(1)
The architectural design of the ADUs must match the existing
primary dwelling including the following:
(iii) Windows of two-story ADUs which impact the privacy
of face an adjoining residential property shall be designed to obscure
views of neighboring yards as is feasible through the use of raised
sill heights, including transom windows, opaque/obscured translucent
glass, or other methods;
(v)
Exterior finish (e.g. Stucco, siding etc.).
(Ord. 24-02, 12/12/2023)
General Junior Accessory Dwelling Unit Requirements.
(a) Location. A junior accessory dwelling unit is permitted in any zone
that allows residential units. JADUs are only allowed on lots that
have an existing SFD, subject to the following:
(1)
JADUs within an existing SFD shall be limited to one.
(2)
The JADU is constructed within the walls of an existing or proposed
single family dwelling; and
(b) JADU Development Standard. All JADUs shall contain an efficiency
kitchen pursuant to State law, i.e., to
Government Code Section 65852.22(a)(1)
and can share bathroom facilities with the primary dwelling.
(c) Size. The minimum size of a JADU is one hundred fifty square feet.
The maximum size of a JADU is five hundred square feet or fifty percent
of the existing SFD, whichever is less.
(d) Setbacks. The minimum setback for a JADU is subject to the setback
requirements of the established zone.
(e) Height. The maximum height of a JADU is subject to the maximum height
of the established zone.
(f) Design Standards.
(1)
The architectural design of the JADU must match the existing
primary dwelling(s) including the following:
(iv)
Exterior finish (i.e. Stucco, siding etc.).
(g) The single family residence in which the JADU is permitted must be
owner-occupied. The owner may reside in either the remaining portion
of the structure or the newly created JADU. Exception: The owner occupancy
requirement shall not apply if the owner is another governmental agency,
land trust, housing organization, or otherwise exempt pursuant to
state law, i.e., to
Government Code section 65852.22(a)(2).
(Ord. 24-02, 12/12/2023