Simi Valley & Ventura County

ADU Builder in Calabasas

Safeway Construction is a licensed ADU builder serving Calabasas homeowners who want to add living space, rental income, or multigenerational housing to their property. Based in Simi Valley with quick access to Calabasas via the 101 freeway (Las Virgenes/Calabasas exit), we handle every phase of ADU construction from design and permits through move-in day.

Modern ADU construction in Calabasas by Safeway Construction
Cottage-style ADU in Calabasas by Safeway Construction

Calabasas’s ADU Construction Experts

Accessory dwelling units are one of the smartest investments Calabasas homeowners can make. Whether you want to generate rental income, provide housing for a family member, or add flexible living space, an ADU on your Calabasas property can deliver significant value. California law makes it easier than ever to build ADUs, and Safeway Construction is here to guide you through every step.

We build all types of ADUs for Calabasas homeowners: detached units up to 1,200 square feet, garage conversions, attached additions, and junior ADUs within your existing home. Every ADU we build includes quality finishes, energy-efficient systems, and a thoughtful layout designed to maximize livable space. We handle architectural design, engineering, permits with the City of Calabasas Building Division, and all construction.

A 25-minute drive from our Simi Valley headquarters via the 101 freeway. With 20+ years of construction experience and a 5.0-star Google rating, Calabasas homeowners trust Safeway Construction to build ADUs that are done right, on time, and within budget.

ADU Construction Services in Calabasas

Detached ADU Construction

Build a standalone accessory dwelling unit in your Calabasas backyard. Our detached ADUs range from 400 to 1,200 square feet and include full kitchens, bathrooms, living areas, and private entrances. Popular with homeowners in The Oaks, Mulholland Heights, Calabasas Park looking to add rental income or multigenerational living space.

Garage Conversion ADU

Convert your existing garage into a fully permitted ADU at a fraction of the cost of new construction. We handle structural upgrades, insulation, plumbing, electrical, and interior finishing to transform your Calabasas garage into a comfortable living space.

Attached ADU Addition

Add an ADU that connects to your existing home in Calabasas. Attached ADUs share a wall with the main house and can include a separate entrance, kitchen, bathroom, and living area. This option works well when backyard space is limited.

Junior ADU (JADU)

Create a JADU of up to 500 square feet within your existing Calabasas home. Junior ADUs convert existing bedrooms or interior space, require minimal construction, and are permitted under California law for most single-family properties.

ADU Design & Permitting

We manage the complete ADU permitting process with the City of Calabasas Building Division. From initial site assessment and architectural plans through plan check and final inspection, we handle every step so you can focus on the end result.

ADU Interior Finishing

Every Safeway ADU includes quality interior finishing: modern kitchens with quartz countertops, tiled bathrooms, LVP or hardwood flooring, energy-efficient HVAC, and thoughtful layouts that maximize livable space in your Calabasas ADU.

Why Calabasas Homeowners Choose Safeway for ADU Construction

Licensed ADU Specialists

ADU construction involves unique challenges: site assessment, utility connections, separate metering, and navigating California's evolving ADU legislation. Our team has built ADUs across the region and understands the specific requirements for Calabasas properties.

Just Minutes from Calabasas

A 25-minute drive from our Simi Valley headquarters via the 101 freeway. You get the responsiveness of a local contractor with the experience of a firm that has been serving the area for over 20 years.

Always Free Estimates

Every Safeway estimate is free — whether you use our instant online tool at SafewayQuickQuote.com or schedule a no-obligation in-home consultation. ADU projects are a major investment, and you deserve to know your costs upfront without paying a consultation fee. We provide detailed, honest estimates at no cost.

Full-Service ADU Builder

We handle everything from architectural design and city permits through construction and final inspection. No subcontractor juggling for you. One team, one contract, one point of contact for your entire Calabasas ADU project.

Calabasas ADU Construction Cost Ranges

ADU Construction costs in Calabasas vary by scope and materials. Here are typical price ranges for projects in the Calabasas area. Get a personalized estimate at SafewayQuickQuote.com.

Garage Conversion

$80,000 - $140,000

Junior ADU (JADU)

$60,000 - $100,000

Small Detached (400 sq ft)

$170,000 - $230,000

Medium Detached (600 sq ft)

$220,000 - $300,000

Large Detached (900+ sq ft)

$300,000 - $400,000+

Attached ADU Addition

$190,000 - $300,000

ADU Construction FAQs for Calabasas Homeowners

How much does an ADU cost in Calabasas?

ADU construction costs in Calabasas typically range from $80,000 to $230,000 depending on the type and size. Garage conversions generally cost $80,000 - $140,000, making them the most affordable option. Detached ADUs ranging from 400 to 1,200 square feet typically cost $300,000 - $400,000+. Attached ADU additions fall between $190,000 - $300,000. For reference, Ventura County ADU builders generally quote $90,000 to $400,000 depending on size and type, and our pricing is competitive within those ranges. Get a free estimate — online at SafewayQuickQuote.com or by calling (805) 222-6544.

How long does it take to build an ADU in Calabasas?

Building an ADU in Calabasas typically takes 6 to 12 months from design through final inspection. The design and permitting phase takes 2 to 4 months depending on complexity and review times with the City of Calabasas Building Division. Construction of a detached ADU takes 4 to 6 months, while garage conversions can be completed in 2 to 3 months. Calabasas homeowners building ADUs should be aware of hillside development standards and fire zone requirements that may affect design and materials. The Building Division works closely with homeowners to navigate these requirements. Safeway Construction manages every phase of your ADU project from initial design through move-in day.

What types of ADUs can I build in Calabasas?

California law allows several types of ADUs in Calabasas: detached ADUs (standalone structures up to 1,200 sq ft), attached ADUs (additions to your existing home), garage conversion ADUs, and Junior ADUs (JADUs up to 500 sq ft within existing space). Under AB 68 and SB 9, most single-family properties can build at least one ADU. Calabasas homeowners building ADUs should be aware of hillside development standards and fire zone requirements that may affect design and materials. The Building Division works closely with homeowners to navigate these requirements. Safeway Construction helps Calabasas homeowners determine the best ADU type for their property and handles all permitting with the City of Calabasas Building Division.

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