| ADUs and JADUs require either a Building Permit only, or a Minor Site Development Permit and Building Permit
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| All Residential Districts (R1-R5) and Mixed Use Districts (MXD, MXD2, MXD3) Zones
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| Attached ADU or Detached ADU:
- 850 square feet for a studio or one bedroom and 1000 square feet for a two bedroom unit
Attached or Detached ADU in the “H”Hillside Combining District:
- 1200 square feet Attached ADU created on a lot with an existing primary dwelling is limited to 50% of the floor area of the existing dwelling
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- A detached ADU created on a lot with an existing or proposed single-family or multi-family dwelling unit shall not exceed 16 feet in height
- A detached ADU may be up to 18 feet in height when located on a lot with an existing or proposed single-family or multifamily unit that is located within one-half mile walking distance of a major transit stop or a high quality transit corridor
- A detached ADU may be up to two additional feet in height (for a maximum of 20 feet) if needed to accommodate a roof pitch on the ADU that is aligned with the roof pitch of the primary dwelling unit
- A detached ADU created on a lot with an existing or proposed multi-family dwelling that has more than one story above grade shall not exceed 18 feet in height
- An attached ADU cannot exceed 25 feet in height or the height limitation imposed by the standards for the underlying zoning district, whichever is less
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- 25 foot minimum front yard setback
- 4 foot rear and side setback
- No setback is required if the ADU is constructed in the same location and to the same dimensions of an existing structure
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Lot or Location Restrictions |
- No ADU may cause the total lot coverage of the lot to exceed 50%
- Detached ADUs must be built at least 5 feet from the rear wall of the primary dwelling unit
- No ADU may cause the total percentage of open space of the lot to be less than 50%
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| One off street parking space is required for each ADU unless one or more of the following conditions are met:
- The ADU is located within one half (½) mile walking distance of public transit
- The ADU is located within an architecturally and historically significant historic district
- The ADU is part of an existing primary residence or an accessory structure
- On street parking permits are required but not offered to the occupant of the ADU
- An established car share vehicle stop is located within one block of the ADU
- When then permit application to create an ADU is submitted with an application to create a new single-family or new multi-family dwelling on the same lot, provided that the ADU or the lot satisfies all other requirements for new development
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| JADU Specific Requirements:
- Must be constructed within the walls of the existing or proposed building
- No more than 500 sq ft
- Must include an efficiency kitchen (a cooking facility with appliances, and a food preparation counter with a total area of at least 15 sq ft. and food storage cabinets with a total of at least 30 sq ft of shelf space)
- Can include separate sanitation facilities or share sanitation facilities with the existing or proposed primary dwelling
Landscaping Standards:
- Evergreen Landscape screening must be planted and maintained between the ADU and adjacent parcels.
- At least one 15 gallon size plant must be planted for every 5 linear feet of exterior wall, or alternatively, at least one 24 inch box size plant must be planted for every 10 linear feet of exterior wall
- These plants must be at least 6 feet tall when installed, or as an alternative a solid fence of at least 6 feet may be installed
- All landscaping shall be drought tolerant
Architectural Design Standards:
- Materials and colors of the exterior walls, roof, and windows must match the appearance of the existing or proposed primary dwelling
- The roof slope must match that of the dominant roof slope of the primary dwelling
- An ADU or JADU must have an independent exterior entrance, separate from that of the primary dwelling. The entrance to an attached ADU or JADU must be located on a side or rear building facade, not facing the public right-of- way
- Exterior lighting is limited to down lights
- The interior horizontal dimensions of the ADU must be at least 10 feet wide in every direction, with a minimum interior wall height of 7 feet
- Windows and doors may not have a direct line of sight to a neighboring residential property, and fencing, landscaping, or privacy glass can be used to provide screening and prevent a direct line of sight
- Windows located on the second story of an ADU or JADU must be either clerestory with the bottom of the glass at least 6 feet above the finished floor, or use frosted or obscure glass to preserve privacy
- The ADU and primary dwelling must use the same driveway to access the street
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- ADUs are not subject to any owner-occupancy requirement
- JADUs shall be subject to an owner-occupancy requirement, where the property owner must live in either the primary house or the JADU
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| Must be recorded requiring compliance with any owner-occupancy regulations
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- ADUs and JADUs can not be rented for less than 30 days at a time
- With the building permit application, the applicant must provide the city with an estimate of the projected annualized rent that will be charged for the ADU or JADU
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Departments and Agencies Involved in Permitting |
- Planning Department
- Building Department
- Land Development Department
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- Building Safety Fee (Plan Review, Inspection, Miscellaneous)
- Planning Fee (Plan Review)
- Land Development Fee (Plan Review)
- Utility Connection Fee (Water, Sewer/Treatment Fee)
- New Address Request
- No impact fees are required for an ADU or JADU that is less than 750 sq ft
- Any impact fee that is required for an ADU that is 750 sq ft or larger is assessed based on the floor area of the primary house
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Sample Fees From Recently Built Projects | |
