Zoning Code Text Amendment (MCA-22-036)
Accessory Dwelling Units (ADUs)
Presented by:
Brad Wungluck, Deputy Director
ATTACHMENT 3
Background
• The City of Manteca adopted Chapter 17.82 Second Dwelling Units in 2011 via Ordinance 1501.
• When adopted, Chapter 17.82 was intended to:
• Establish procedures for reviewing the placement of second dwelling units in residential zoning districts consistent with state law • Implement the General Plan policies encouraging more affordable rental housing while also maintaining the quality of existing residential neighborhoods.
ATTACHMENT 3
Background
• Since Ordinance 1501 adoption in 2011:
• Effective January 1, 2020, Senate Bill 13, Assembly Bill 68, Assembly Bill 587, Assembly Bill 670, Assembly Bill 671 and Assembly Bill amended state regulations to encourage the development and limit standards cities may impose on accessory dwelling units (“ADUs”) and junior accessory dwelling units (“JADUs”)
• Effective January 1, 2021, Senate Bill 1030, Assembly Bill 3182 and Assembly Bill 345 amended state regulations to further encourage the development and limit standards cities may impose on accessory dwelling units and junior accessory dwelling units
ATTACHMENT 3
Summary of Proposed Regulations – Attached ADU
(Addition to Existing Residence)
Max. Unit
Size Front Setback Side Setback
Rear
Setback Separation Max.
Height Site Coverage Off-Street Parking
Max
ADUs/Lot Access Density
No more
than 50% of
existing
living area,
or 850 sq.
ft., or 1,000
sq. ft. for a 1
bedroom, or
1,200 for
accessible
unit
Subject to Front Yard
Setbacks applicable to
Primary Dwelling,
unless such a
requirement would
preclude the
construction of a
Statewide Exemption
Accessory Dwelling
Unit
4-feet 4-feet
Per
California
Building
Code and
Fire Code
16 feet
ADU structure
is not included
in the
calculation of
site coverage
allowed by the
applicable
zoning district
None
required
for ADU
One (1) ADU
per lot, two
(2) when
parcel has
existing
multifamily
building
Independent
exterior
entrance to
the ADU is
required
ADU shall not
be included in
the
calculation or
determination
of lot density
ATTACHMENT 3
Summary of Proposed Regulations – Detached ADU
(Separate from Existing Residence Space)
Max. Unit
Size Front Setback Side Setback
Rear
Setback Separation Max. Height Site Coverage Off-Street Parking Max
ADUs/Lot Access Density
Max. floor
area of 850
sq. ft., or
1,000 sq. ft.
for a 1
bedroom, or
1,200 for
accessible
unit
Subject to Front Yard
Setbacks applicable to
Primary Dwelling,
unless such a
requirement would
preclude the
construction of a
Statewide Exemption
Accessory Dwelling
Unit
4-feet 4-feet
Per
California
Building
Code and
Fire Code
16 feet
ADU structure
is not included
in the
calculation of
site coverage
allowed by the
applicable
zoning district
None
required
for ADU
One (1) ADU
per lot, two
(2) when
parcel has
existing
multifamily
building
Independent
exterior
entrance to
the ADU is
required
ADU shall not
be included in
the
calculation or
determination
of lot density
ATTACHMENT 3
Summary of Proposed Regulations – Internal ADU
(Conversion of Existing Residence Space)
Max. Unit
Size Front Setback Side Setback
Rear
Setback Separation Max.
Height
Site
Coverage
Off-Street
Parking
Max
ADUs/Lot Access Density
Max. floor
area of 850
sq. ft., or
1,000 sq. ft.
for a 1
bedroom, or
1,200 for
accessible
unit
Subject to Front
Yard Setbacks
applicable to
Primary Dwelling,
unless such a
requirement would
preclude the
construction of a
Statewide
Exemption
Accessory Dwelling
Unit
4-feet 4-feet
N/A—
Existing
Structure
N/A—
Existing
Structure
N/A—
Existing
Structure
None
required for
ADU and no
replacement
parking with
garage
conversion
One (1) ADU
per lot, two
(2) when
parcel has
existing
multifamily
building
Independent
exterior
entrance to
the ADU is
required
ADU shall not
be included in
the calculation
or
determination
of lot density
ATTACHMENT 3
Accessory Dwelling Unit Guidebook
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Accessory Dwelling Unit Preapproved Plans
Studio Option
Studio | 1-Bath | 435 SF
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Accessory Dwelling Unit Preapproved Plans
1-Bedroom Option
1-Bedroom | 1-Bath | 625 SF
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Accessory Dwelling Unit Preapproved Plans
2-Bedroom Option
2-Bedroom | 1-Bath | 745 SF
ATTACHMENT 3
Recommendation
Staff Recommends that the City Council:
1. Open the Public Hearing; and
2. After receiving any testimony, Close Public Hearing; and
3. Waive the first reading by substitution of the title and introduce an Ordinance repealing Manteca Municipal Code, Chapter 17.82 Second Dwelling Units, and adding Chapter 17.82, Accessory Dwelling Units.
ATTACHMENT 3
Zoning Code Text Amendment (MCA-22-036)
Accessory Dwelling Units (ADUs)
Presented by:
Brad Wungluck, Deputy Director
ATTACHMENT 3