Build an ADU in Oxnard, California

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Overview

Oxnard is located in Ventura County in California. Oxnard has a total population
of 197899 over a land mass of 26.89 Square Miles. When it comes to ADUs, the
city allows for 1+ ADUs on a given property, and a square footage of 850-1,000
sf

Number of ADUs Allowed

1+

Size of ADU Allowed

850-1,000 sf

Types of ADUs Allowed

Detached, Junior, Attached

Permit Cost

Coming Soon

Number of ADUs allowed

Under state law, each single-family home may now add at least one Accessory
Dwelling Unit. Owner occupied single-family lots may add one Accessory Dwelling
Unit and one Junior Accessort Dwelling Unit (JADU). Multi-family lots, per every
four existing residential units, may add one Accessory Dwelling Unit, so long as
the existing units were legally established.

Property Requirements

Residential properties will be permitted to create up to 850 sq. ft. for a one
bedroom ADU or up to 1,000 sq. ft. for a two bedroom ADU, regardless of the
underlying zoning standards of the property. A Junior Accessory Dwelling Unit is
permitted up to 500 sq. ft.. According to Califronia Residential Code, the
minimum size of any living unit is 150 sq. ft. (including Accessory Dwelling
Units and Junior Accessory Dwelling Units). ~ According To AB68

Types of ADUs Allowed

Attached ADU

An attached ADU is one that is attached to your house. Also know as Addition ADUs or “bump-out ADUs. These types of ADUs can be accessed from the primary house with a door in the connection point, but also can be independent of the main home.

Detached ADU

A detached ADU is not connected to your primary house. The dwelling needs to be within your property setbacks and allowable building size (both height and square footage).

Junior ADU

Junior Accessory Dwelling Units (JADUs) are named this way because they are small (up to 500 square feet).

In California, the recent state bills AB68 and AB 881 permits both an ADU and a Junior ADU (JADU) on the same lot with a proposed or existing single-family dwelling. This means you can have two units on your lot: ADU, and JADU.

Property Requirements

Ownership
Owner-occupancy will not be required for new Accessory Dwelling Units
(conversion and new construction) built between 2020 and 2025. ~ Updated: State
Law SB-13
Number of ADUs Allowed
Under state law, each single-family home may now add at least one Accessory
Dwelling Unit. Owner occupied single-family lots may add one Accessory Dwelling
Unit and one Junior Accessort Dwelling Unit (JADU). Multi-family lots, per every
four existing residential units, may add one Accessory Dwelling Unit, so long as
the existing units were legally established.
ADU Size
Residential properties will not be subject to any minimum lot size for Accessory
Dwelling Units by ordinance or of the underlying zoning district. ~ Updated:
State Law AB-68
Parking
Replacement parking shall not apply to parcels which convert an existing garage
to an Accessory Dwelling Unit or Junior Accessory Dwelling Unit. ~ Updated:
State Law AB-68
Height
The maximum allowed ADU height is determined by the underlying zone.
Fire Safety
Fire sprinklers are required for any accessory dwelling unit if they are
required for the primary dwelling.
Utility Connections
Separate facilities including, but not limited to, electric, sewer, water and
streets, as certified by the public works director are required for the ADU.
Aesthetic
The accessory dwelling unit shall comply with the architectural standards of
section 16-23. If the accessory dwelling unit is an addition to the primary
unit. The accessory dwelling unit shall be of material colors and in a style
which are each compatible with the primary dwelling as reasonably determined by
the director.
Set backs
Setbacks for a detached new construction Accessory Dwelling Unit (ADU) shall be
no more than 4 feet from the rear and side lot lines. No setbacks shall be
required for Accessory Dwelling Unit (ADU)s and Junior ADUs converted from
legally eastablished existing space. Attached new construction Accessory
Dwelling Unit (ADU)s and conversions from existing space to be expanded must
comply with the setbacks of the underlying zone. ~ According To AB68

Design Review

Except as otherwise provided herein, the primary dwelling and the accessory
dwelling unit shall meet current requirements for interior yard space, height,
landscaping. Setbacks and parking for the zone in which the primary dwelling and
the underlying zone. The director is directed to approve the application within
120 days of receipt of a complete application in a ministerial process, as
required by state law.

Next Steps

To get started on your ADU, here are some first steps.

Call Your City

Search Google for your city’s contact number. eg “City of {Phoenix} Residential Permits Contact Number”

You can call the main line and get directed to the permitting department.

Ask these questions...

1) Can I put a secondary home on my lot (Accessory Dwelling Unit)?
2) What are my livable setbacks, and ADU size regulations?
3) Can I put a prefabricated guest house on my property?

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