HomeMy WebLinkAbout8.2 - 2745 ADU Policy Discussion
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STAFF REPORT
CITY COUNCIL
DATE: July 16, 2019
TO: Honorable Mayor and City Councilmembers
FROM:
Christopher L. Foss, City Manager
SUBJECT:
Accessory Dwelling Units Policy Discussion
Prepared by: Amy Million, Principal Planner
EXECUTIVE SUMMARY:
The City Council will consider and evaluate Staff's proposals for future City policies to
encourage the production of accessory dwelling units in Dublin.
STAFF RECOMMENDATION:
Receive presentation and direct to Staff to proceed with the policy matters as outlined in
the report to encourage the production of accessory dwelling units in Dublin.
FINANCIAL IMPACT:
No financial impacts related to this discussion.
DESCRIPTION:
Background
The State Legislature has found that California fac es a severe housing crisis and
determined that second units or accessory dwelling units (ADU) are a valuable form of
housing in California which provide housing for family members, students, the elderly,
in-home health care providers, the disabled, and others, at below market prices within
existing neighborhoods. It is the intent of the Legislature that local ordinances do not
unreasonably restrict the ability of homeowners to create second units through its
regulations.
In 2017, the City Council adopted Ordinance 01-17 amending the Zoning Ordinance
regulations pertaining to second units in response to Senate Bill (SB) 1069 and
Assembly Bill (AB) 2099 requiring cities to relax certain development standards for
second units including, setbacks, parking standards and unit size.
That same year, Governor Brown signed a 15-bill “Housing Package” aimed at
addressing the state’s housing shortage and high housing costs. The Housing Package
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included the Building Homes and Jobs Act (SB 2) which provides funds available to
local governments to update planning documents in order to streamline housing
production. SB2 provides planning grants through a noncompetitive process to eligible
local governments that meet the specified requirements. The City of Dublin is eligib le for
a maximum of $310,000. Applications that propose projects in one of the State’s pre -
determined priority policy areas are automatically deemed to accelerate housing
production.
Encouraging ADUs through actions above State law such as, outreach, fee waivers,
pre-approved plans, website zoning clearance assistance, and other homeowner tools
or finance tools is one of those pre-determined priority policy areas. Staff will bring back
an item to the City Council in late summer/early fall to comply with t he requirements of
this grant, including a recommendation to focus some of these grant funds on
streamlining ADU production. Some of the policy items outlined in this staff report will
inform that discussion.
Streamline Accessory Dwelling Units
ADUs have the potential to increase housing affordability (both for homeowners and
tenants), create a wider range of housing options within the community, enable seniors
to stay near family as they age, and facilitate better use of the existing housing in
established neighborhoods. The City’s regulation of ADUs is consistent with current
State law. ADUs are allowed in the single-family residential zoning district (R-1) and
similar Planned Development zoning districts subject to certain development standards.
Currently, there are approximately 185 accessory dwelling units in the City of Dublin –
122 of these are designated as below market rate units that were created by market
rate developers as a method to satisfy their inclusionary zoning obligation.
If the City were to go forward with the proposed SB 2 grant application, Staff would
propose a work program in the grant that would further streamline the process for ADU
permitting. The program would go beyond the requirements of State law and take a
closer look at the City’s regulations, goals and policies in an effort to facilitate the
construction of additional accessory dwelling units by homeowners. Table 1 below
provides an overview of various opportunities to facilitate the production of ADUs for the
City Council’s consideration. The projects included in the table would, through a variety
of methods, encourage and streamline the development of ADUs.
Table 1. Potential ADU Streamlining Projects
PROJECT STATUS OF CITY POLICY
NEW ELIMINATION MODIFICATION
Architectural Prototypes X
Building Permit Plans X
Floor Plans for Garage Conversions X
Impact Fee Reduction X
Owner Occupancy Requirements X
Parking Standards X
Front Entry X
Deed Restriction (affordability level) X
Junior ADUs X
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These potential projects are described in further detail below.
Architectural Prototypes
Pre-approved architectural plans for detached ADUs have the potential to save the
homeowner money, expedite the permit process, and result in well -designed ADUs.
This project would provide a range of prototypes that are pre -approved by the City,
potentially eliminating any design fees encumbered by the property owner.
The Pre-Approved Plans would be designed in a variety of sizes consistent with the
development standards and regulations as provided in Dublin Municipal Code Chapter
8.80 and include, but not limited to:
1. 499 square foot detached structure
2. 1,200 square foot detached structure with identified alternative floor plans aimed
to seamlessly reduce the size
Building Permit Plans
Similar to the architectural prototypes, this takes the concept one step further and
involves the creation of construction-level documents which can be used for obtaining a
building permit. Custom plans for an ADU can cost between $10,000 and $20,000,
which adds significant additional cost to construction of an ADU. There may be liability
issues associated with this opportunity that would be evaluated by the City Attorney’s
Office and the City’s risk manager.
Floor Plans for Garage Conversions
While there are many ways to incorporate an ADU into an existing home, some find it
desirable to convert the garage into living space since it does not disrupt the living
space of the existing home. The use of pre-approved construction documents would
eliminate the need for the City to complete a plan review prior to issuing a building
permit thus saving the project proponent time and money preparing plans and paying to
have the City review those plans. The City’s Municipal Code already address es garage
conversions and allows for them through a ministerial process so long as two full -size
unenclosed parking spaces will be available on the parcel following the conversion.
Even through this process, there is time and money associated with the crea tion of
construction plans and obtaining a building permit.
This project would provide an efficient layout for an ADU in a standard two -car garage
as well as structural review that can be applied to most homes within the City.
Parking Standards
State law generally prohibits cities from imposing parking requirements on ADUs that
are located within one-half mile of public transit. Consistent with State law, the Dublin
Zoning Ordinance requires one off-street parking space be provided for second units
located more than one-half mile from public transit, in addition to the two off -street
parking spaces required for the existing single-family home.
It is proposed to eliminate the off-street parking requirement for ADUs. In general, the
reason for a parking requirement is to address concerns that inadequate parking may
negatively impact a neighborhood. ADUs are only allowed on parcels with single -family
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detached homes. These homes are required to have a two -car garage and a
corresponding two car driveway for access. While it is possible that one of those parking
spaces may be used by the occupant(s) of the second unit, it is assumed that the
occupant of the ADU will utilize on-street parking if an additional off-street parking space
is not provided.
Impact Fees
The payment of development impact fees may constitute a barrier for the construction of
affordable housing. The City has discretion over some of the impact fees, but others
such as water, sewer and school fees are imposed by outside agencies. Those impacts
fees in which the City has direct control over are:
➢ Public Facilities Impact Fee
➢ Fire Impact Fee
➢ Eastern Dublin Traffic Impact Fee (EDTIF)
➢ Western Dublin Traffic Impact Fee (WDTIF)
➢ Dublin Crossing Transportation Fee
➢ Noise Mitigation Fee
➢ Affordable Housing In-Lieu Fee
➢ Dublin Ranch West Side Storm Drain Benefit District
➢ Dublin Ranch East Side Storm Drain Benefit District
The City Council could consider reducing impact fees for all ADUs or only for ADUs
where the owner agrees to a deed restriction creating an affordable rental unit. In
addition, the City Council could support a fee reduction for homeowner constructed
ADUs and not for those constructed through the developer.
Owner-occupied unit(s)
The Dublin Zoning Ordinance requires owner-occupancy for the primary dwelling or the
second unit. There are benefits and potential concerns with this requirement. The
requirement creates an additional constraint which may be burdensome; however, such
requirements could help preserve the residential character of the neighborhoods.
Proposed AB 68, introduced early this year, would prohibit the City from imposing owner
occupancy requirements. Given that this is difficult to enforce, and the Legislature is
continuing to move towards reducing the requirements o n ADUs, the elimination of this
requirement would certainly encourage the permitting of ADUs.
Front entry
The Dublin Zoning Ordinance requires that the front entry of a second unit is not visible
from the street. This requirement is particularly difficult to satisfy on corner lots or where
the second unit converts a portion of the front of the home or garage. After years of
implementing the Ordinance, it does not appear that the benefits of this requirement
outweigh any negative impacts. The best solution is to ensure that the entrance is well
integrated into the design and architecture of the home, which may be in a location that
is visible from the street. Visibility of the front entry is also an important tool in Crime
Prevention Through Environmental Design or CPTED which utilizes natural
surveillance, walkways, lighting, and landscape to clearly guide people and vehicles to
and from the proper entrances. An update to the City Ordinance reflecting the design
goals for the front entry would resolve this issue.
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Deed Restriction for Affordability
Many jurisdictions link the allowable size of the ADU to the affordability level. While it is
assumed that ADUs are “affordable by design”, the City does not restrict the affordability
level of an ADU, with the exception of developer built ADUs that are intended to satisfy
their Inclusionary Zoning requirement. For example, the Dublin Zoning Ordinance
allows up to a maximum unit size of 1,200 square feet, which is the size of many
modest homes in the Bay Area. The City could require ADUs over a specified size to be
deed restricted to low or very low-income occupants. While this provision does not
encourage the creation of an ADU itself, it does encourage the development smaller
and more affordable ADUs.
Junior ADUs
State law creates another category of ADUs known as “Junior Accessory Dwelling
Units.” Junior ADUs are small units created out of existing bedrooms. A JADU must
have cooking facilities, including a sink, but is not required to have a private bathroo m.
They bridge the gap between a roommate and a tenant by offering an interior
connection between the unit and main living area. The doors between the two spaces
can be secured from both sides, allowing them to be easily privatized or incorporated
back into the main living area. These units share central systems, require no fire
separation, and have a basic kitchen, utilizing small plug in appliances, thereby
reducing development costs.
State ADU Law is clear that cities can choose to allow Junior ADUs or not. However, if a
city elects to allow them, the standards and criteria by which they can be evaluated are
quite strict. These standards include:
➢ JADUs shall not be considered a separate or new dwelling unit for the
purposes of fees and as a result shou ld not be charged a fee for providing
water, sewer or power, including a connection fee. These requirements apply
to all providers of water, sewer and power, including non -municipal providers.
➢ Owner occupancy is required
➢ No parking can be required
➢ Maximum size of 500 square feet
➢ Must be approved through a ministerial permit process.
Other Policy Matters to Consider
In addition to the policy areas above, there are several other ways in which ADUs are
regulated; however, the current standard seems to provide enough flexibility so no
changes in policy are suggested. They are provided below for your reference and
possible discussion.
Lot Coverage
The allowable lot coverage in the R-1 Zoning district is 35% for two-story homes and
40% for single-story homes. If the property has an ADU, the allowable lot coverage is
increased. The principal residence and second unit combined shall not cover more than
60% of the lot. No change is suggested.
Required setbacks
Generally speaking, an ADU is required to conform to the setback standards of the R-1
zoning district. For an attached ADU, the setback requirements are the same as the
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primary dwelling requiring a rear setback of 20 feet and a side yard setback ranging
from 5-10 feet. A detached ADU can be 3-5 feet from the rear and side property lines
depending on the size of the lot. The distance of a detached accessory structure from
any other structure on the same lot (including the primary dwelling) is determined by the
Uniform Building Code.
If all required setbacks were to be solely based on the Uniform Building Code, the
setback requirements would be 0-5 feet from the property line and 6-10 feet from the
primary dwelling. The setback range is based on various construction factors including
the location of windows, fire sprinklers and the fire rating for exterior walls.
Given that the existing setback requirements of the Zoning Ordinance are minimal, no
change is suggested.
Conclusion
Staff is seeking direction from City Council on whether to pursue the policy matters as
outlined in Table 1. More specifically:
1. Is the City Council willing to pursue all of them at this time?
2. Or, is the City Council wishing to exclude any of the items listed in Table 1 from
future consideration?
3. Is the City Council interested in reviewing other policy matters, such as lot
coverage and required setbacks at this time?
ATTACHMENTS:
None.