Chapter 20.166
Dimensional standards
Uses
Extracted standards
20 individual requirements pulled out of this section’s prose, each with the sentence it came from.
Height
- ADUAccessory dwelling unit (ADU)A second, smaller home on a lot that already has one — a garage flat, basement flat or backyard cottage. heightMaximum heightThe tallest a building may be, given in feet, in storeys, or both — whichever binds first.
Per the zoning district standard for the primary dwelling.
Other
- ADUs exempt from development standards
The types of accessory dwelling units provided for in this section shall not be required to comply with the development standards included in sections 20.166.030 and 20.166.035 and shall only be rented for a term longer than thirty (30) days. Prior to obtaining a building permit for an accessory dwelling unit pursuant to this section, a deed restriction, approved by the County, shall be recorded with the County Recorder's office, which shall include a restriction that the accessory dwelling unit only be rented for a term longer than thirty (30) days, which shall run with the land, and be binding upon any future owners, heirs, or assigns.
- Fire sprinklers not required
Accessory dwelling units shall not be required to provide fire sprinklers if they are not required for the primary residence. The construction of an accessory dwelling unit shall not trigger a requirement for fire sprinklers to be installed in the existing primary dwelling.
- JADU deed restriction required
Prior to obtaining a building permit for a Junior Accessory Dwelling Unit, a deed restriction, approved by the County, shall be recorded with the County Recorder's office, which shall include the pertinent restrictions and limitations of a junior accessory dwelling unit, which shall run with the land, and be binding upon any future owners, heirs, or assigns.
- JADU efficiency kitchen required
Each junior accessory dwelling unit shall include an efficiency kitchen.
- No separate utility connection for JADU
No new or separate utility connection between the junior accessory dwelling unit and the utility shall be required, although the property owner may voluntarily install a submeter for the junior accessory dwelling unit.
- JADU owner-occupancy required
The owner of the lot must reside on-site. Owner-occupancy shall not be required if the owner is another governmental agency, land trust, or housing organization.
- JADU separate entrance required
A junior accessory dwelling unit shall have direct exterior access separate from the main entrance to the primary dwelling.
Setbacks shall be the same as the existing structure or per the zoning district for the primary structure, whichever is less.
- Maximum number of ADUs per lot
One (1) attached or detached accessory dwelling unit shall be allowed on a parcel, provided that no Second Residential Unit exists. In addition, one (1) junior accessory dwelling unit shall be allowed.
- Maximum attached ADUAccessory dwelling unit (ADU)A second, smaller home on a lot that already has one — a garage flat, basement flat or backyard cottage. size as percentage of primary dwelling50 pct
The total floor area of an attached accessory dwelling unit shall not exceed fifty (50) percent of the existing or proposed primary dwelling unit.
- Maximum detached ADUAccessory dwelling unit (ADU)A second, smaller home on a lot that already has one — a garage flat, basement flat or backyard cottage. size1,200 sqftsq ftSquare feet. An acre is 43,560 sq ft; a typical suburban lot is 7,000–10,000.
A detached accessory dwelling unit shall not exceed twelve hundred (1,200) square feet in size.
- Maximum JADU size500 sqftsq ftSquare feet. An acre is 43,560 sq ft; a typical suburban lot is 7,000–10,000.
Maximum of five hundred (500) square feet of living area.
- Adequate sewage disposal system required
An adequate sewage disposal system as approved by the Division of Environmental Health is available to serve the accessory dwelling unit.
- Adequate water system required
An adequate water system as approved by the Division of Environmental Health is available to serve the accessory dwelling unit.
Parking
- ADUAccessory dwelling unit (ADU)A second, smaller home on a lot that already has one — a garage flat, basement flat or backyard cottage. parking exceptions
No off-street parking space is required if any of the following apply: within one-half mile of public transit, on-street parking permits not offered, part of primary residence, conversion of accessory structure, car share within one block, submitted with new dwelling, located in historic district.
- ADUAccessory dwelling unit (ADU)A second, smaller home on a lot that already has one — a garage flat, basement flat or backyard cottage. parking location
Required off-street parking for an accessory dwelling unit space may be located in setback areas or provided as tandem parking, including on a driveway.
- ADUAccessory dwelling unit (ADU)A second, smaller home on a lot that already has one — a garage flat, basement flat or backyard cottage. parking requirement1 space
One (1) off-street parking space, covered or uncovered, is required for each attached and detached accessory dwelling unit.
- JADU parking requirement0 space
No off-street parking is required for a junior accessory dwelling unit.
- Lost parking replacement
Parking lost when a garage, carport, or covered parking structure is demolished to allow for the construction of an accessory dwelling unit or for the conversion of a structure to an accessory dwelling unit shall not be required to be replaced.
From the ordinance
Accessory dwelling units and junior accessory dwelling units are permitted by right in any zoning district which permits single-family or multi-family homes and do not exceed allowable density for the lot upon which it is located.
Parking requirements
{
"JADU": "0 spaces",
"attached ADU": "1 space",
"detached ADU": "1 space"
}