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(805) 864-5399 ext: 751
Schedule ADU Consultation (805) 864-5399 ext: 751

Simi Valley ADUs

Everything about building Accessory Dwelling Units in Simi Valley, CA

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The city government of Simi Valley has updated its local zoning codes to comply with the State ADU mandate.
The California Building Code (CBC) 2019 is adopted.

Last Updated 01/26/21




Number of ADUs allowed:

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

Types of ADUs allowed:

Detached ADU, Attached ADU, Junior ADU are permitted. Accessory Dwelling Unit (ADU)s may be new construction or converted from existing space. Junior Accessory Dwelling Units must be converted from existing space.

Lot size:

Accessory Dwelling Unit projects on single family or multi-family residential lots will not be subject to the minimum lot size of the underlying local zoning code or by special ordinance. ~ According To AB68

ADU size:

Single-family and multi-family Properties will be approved to add up to 850 sqft for a one bedroom ADU or up to 1,000 sqft for a two bedroom ADU, regardless of the underlying zoning standards of the property. A Junior Accessort Dwelling Unit (JADU) up to 500 sqft is approved. The minimum size of any living unit (including Accessory Dwelling Unit (ADU)s and Junior Accessort Dwelling Unit (JADU)s) is 150 sqft according to California Residential Code. ~ AB68 & AB881 Update

Setbacks:

Setbacks for a detached new construction Accessory Dwelling Unit shall be no more than 4 ft from the rear and side lot lines. No setbacks shall be required for Accessory Dwelling Units and Junior Accessory Dwelling Units converted from legally eastablished existing space. Attached new construction Accessory Dwelling Units and conversions from existing space to be expanded must comply with the setbacks of the underlying zone. ~ Updated: State Law AB-68

Parking:

Replacement parking shall not apply to properties which convert an existing garage to an Accessory Dwelling Unit or Junior Accessort Dwelling Unit (JADU). ~ Updated: State Law AB-68

Fire Safety:

Accessory dwelling units shall not be required to provide fire sprinklers if they are not required for the primary dwelling unless otherwise required by the Fire Code.

Shape, materials and style:

The accessory dwelling unit shall resemble the square feet are in design, materials and color.

Height:

Height ADUs and JADUs must be one-story {maximum feet in height, 1 except where state law allows construction above a garage). The maximum height of any accessory structure shall not exceed the maximum height permitted for a primary structure.

Design review:

State Standards don't require any additional design review.

Number of Bedrooms:

Not specified by State Standards.

Ownership:

Owner-occupancy will not be required for new Accessory Dwelling Units (conversion and new construction) built between 2020 and 2025. ~ SB-13

Utility connections:

A junior accessory dwelling unit may include separate sanitation facilities or may share sanitation facilities with the existing structure, must include one existing bedroom of the existing single-family dwelling, and have an internal connection to the existing single-family dwelling.

Entry:

Passageway. A pathway that is unobstructed clear to the sky and extends from a street to one entrance of the accessory dwelling unit.

Allowed Zones:

*** Beginning in 2020, according to state law, all residential zoning districts, including single-family and multi-family, are allowed to build Accessory Dwelling Units. ***

An existing single-family dwelling and zone OS, RE, RVL, RL, RM, [/Rmod/], RH, and RVH

Residential Building Code:

The California Building Code (CBC) 2019 is adopted.

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ADU Design Library

Browse hundreds of models to find the right fit for your property.

ADU Model 760 sqft

W 35 ft L 12 ft

ADU Model 700 sqft

W 39 ft L 26 ft

ADU Model 400 sqft

W 20 ft L 20 ft


Customer Reviews


"Housable has been a great resource regarding my ADU project. I purchased both the Property and Design Reports. In both cases, they delivered as promised and on time."

Ed in Corona, CA

"The property report was great! Made me feel like my project is feasible."

Alexandria in Santa Ana, CA

"My experience with Housable was exceptional. The team was extremely helpful and responsive. I am very satisfied and happy to have used these services. As a home owner I do not know the construction lingo or process but the Housable team very kind and helpful and patient with me. My expectations were exceeded. Thank you for everything."

Monica H. in Oakland, CA



Complete 5-Step Process

Design
Browse hundreds of permit-ready ADU designs and order one to customize to your needs.
Marketplace
Connect with local contractors to get site visits and cost estimates for your project.
Customization
Mark up changes to your plans and provide critical info needed to permit your project.
Permits
Finalize your project blueprints to submit for building permits.
Construction
Select your contractor and build your project.


What our customers say:



Customer Reviews


"My permits were APPROVED, thank you for all your hard work. I am in the process of meeting with contractors. "

Mary S. in San Jose, CA

"I just wanted to let you know that the permit process has been completed and we are currently in the construction phase. The work you guys did was great and I will definitely be using this service again in the future. I will keep you guys updated on anything important. Thanks!"

Patrick L. in Orange County, CA

Detached ADU - Completed in 2020
1,003 sq. ft., 3 bed, 2 bath

Estimate Your ADU Potential
Financing
Costs / ROI

SELECT ADU SIZE & TYPE

APPRECIATION ESTIMATE

* upon completion of ADU

CONSTRUCTION COST ESTIMATE

* based on local average price per sqft

RENTAL ESTIMATE

* estimated by location

MORTGAGE ESTIMATE

* 30 years / 5% interest rate / 20% down payment

SELECT ADU SIZE & TYPE

Size: 500 sqft

BASED ON LOCAL AVERAGE PROPERTY DATA & VALUE

Appreciation Estimate = (Base Value: $) / (Home's Living Space: sqft) * (ADU's Living Space: sqft)

Rental Estimate = (Rent Per Sqft: $3.47) * (ADU's Living Space: sqft)

Check your property's zoning, browse designs & get contractor estimates for your ADU project:

Everything you need to get accurate estimates from contractors for your ADU project. Get help with ADU feasibility, design, permitting and sourcing contractors for your project in one place.

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Housable is providing information about specific properties that is furnished to users as a good-faith estimate of the development potential of a property. You should not in any way base your development, investments, or other financial decisions on this information. We strongly advise you to consult with an industry professional, such as a lender, realtor, contractor, or architect, who is sufficiently licensed and insured in their field, and who can work with you individually to confirm all requirements before moving forward with any real estate development or investment.