To see if you live in one of the
unincorporated communities where our
fee waiver program
and pre-approved plans may be used, please
|You may want to
consider taking advantage of the change in State law which
made it easier to add a second house, called an Accessory
Dwelling Unit (ADU), to your residential zoned property.
| || |
What is an ADU?
ADU is an additional dwelling unit that could provide
affordable housing options for family members, friends,
students, the elderly, in-home health care providers, the
disabled, and others.
Where is an ADU allowed?
An ADU can be located on residentially zoned property
that has an existing single-family residence. For a complete
list of ADU requirements, please click
| ||Is a building permit required
for an ADU?
Yes, you will be required to obtain a Building Permit
to ensure that the new house meets all the zoning, building,
health & safety codes.
What size ADU is allowed? How big?
An ADU is intended to be secondary in size to the
single-family residence. An ADU attached to a primary
dwelling may be up to 50% of the size of the single-family
residence, up to a maximum of 1,200 square feet. An ADU
detached from the single-family residence may be up to 1,200
square feet, regardless of the size of the residence.
Examples for allowable ADU sizes are provided
|Square Footage of
Existing single-family residence (SFD) ||Maximum Allowed Square
Footage for Detached ADU ||Maximum Allowed Square
Footage for Attached ADU (up to 50% of
|1,450 sq. ft. ||1,200 sq. ft. ||725 sq. ft. |
|1,800 sq. ft. ||1,200 sq. ft. ||900 sq. ft. |
|2,000 sq. ft. ||1,200 sq. ft. ||1000 sq. ft. |
|3,000 sq. ft. ||1,200 sq. ft. ||1,200 sq. ft. |
|4,500 sq. ft. ||1,200 sq. ft. ||1,200 sq. ft.
reviewing the information provided on ADU’s, if you
still have any questions please contact us:
Phone Number: (858) 495-5382
To find out how your property is zoned
(please enter your APN # on the upcoming screen)
Complete List of ADU Zoning
Instructions for Obtaining a Building