We Design & Build Custom ADU's

ADU Contractor in Santa Barbara & Ventura Counties

Get the most out of your home with a custom accessory dwelling unit (ADU) crafted by the seasoned professionals at Lux Custom Homes. As the leading ADU builder in the area, we bring our expertise to designing and constructing high-quality ADUs that are tailored to your unique property and lifestyle needs. Whether you’re looking to add a rental unit for supplemental income, create a beautiful guest suite or in-law quarters, or gain flexible living space – our team is well-equipped to provide you with exceptional ADU solutions that will transform your home. 


We offer a comprehensive range of ADU construction services to cater to all your needs. Our services include modular/prefabricated units for efficient construction, detached new builds separate from the main home, attached additions that seamlessly blend with your house, and conversions that transform existing, garages or other spaces. With our professional design guidance and premium craftsmanship, you can trust us to deliver an outstanding ADU that is perfectly aligned with your goals. We’ll work closely with you to maximize square footage, enhance indoor/outdoor living, and complement your home’s architecture and landscaping. 


Experience the difference of partnering with Santa Barbara and Ventura Counties top-rated ADU contractor.


Accessory Dwelling Unit (ADU)

What Is An ADU?

  • An accessory dwelling unit (ADU), also known as an in-law suite, granny flat, or guest house, is a secondary residential unit built on the same property as a primary residence. ADUs have become an increasingly popular option for homeowners looking to add extra living space and unlock a new stream of rental income.
  • These versatile dwellings can be interior units such as basement or garage conversions, or detached structures like backyard cottages or additions to the main home. ADUs typically include living, sleeping, kitchen and bathroom facilities – offering a private, self-contained living space that can be customized to meet your unique needs, while maximizing the use of your existing property.
  • In Santa Barbara and Ventura County, ADUs provide a way for homeowners to contribute to the community by creating flexible, multi-generational housing, welcoming long-term guests, or potentially generating rental revenue from a legal secondary unit.

Build the Right ADU for Your Property

We stand out by recognizing that every property and homeowner’s needs are unique. This understanding drives us to offer a comprehensive range of ADU types and construction methods, ensuring we deliver the perfect accessory dwelling unit tailored to your specific scenario. Whether you’re envisioning a detached new construction ADU in the backyard, an attached addition to your main home, or a conversion of existing space like a basement or garage – our dedicated team will be with you every step of the way. We’ll assist you in navigating zoning regulations, maximizing your square footage, and designing an ADU that harmonizes with your property’s architecture and landscaping. With our modular/prefabricated ADU options, you have the freedom to enjoy faster build times using pre-constructed components. Alternatively, you can opt for a custom-built detached or attached ADU, constructed entirely on-site. The choice is yours, based on your unique goals, timelines, and vision. No matter which ADU path you choose, our commitment is to deliver exceptional quality, professional expertise, and a seamless experience every step of the way. Try our ADU Budget Calculator

Ventura County ADU Accessory Dwelling Unit

Attached ADU

An attached ADU is built as a new addition directly connected to your main home, creating one cohesive living space while adding extra square footage.

ADU Detached

Detached ADU

Separate living spaces constructed on your property, away from the primary residence. Detached ADUs allow for maximum privacy and flexible design.

Modular ADU

Modular ADU

Modular ADUs are constructed off-site in a factory setting, then delivered and installed on your property for faster completion timelines.

Excisting Space ADU

Repurposed Existing Space ADU

This involves converting already-built areas like, garages etc into functional accessory dwelling units with living, kitchen and bathroom amenities.

ADU Design Considerations

Our experienced designers thoroughly evaluate all the following considerations and more to create an ADU perfectly suited for your specific property, lifestyle, and long-term needs. The design phase is critical to lay the groundwork for a successful ADU build.

Site Orientation

Careful placement and positioning of the ADU based on the slope of your land and direction of the sun can maximize natural lighting and ventilation.

Utilities & Parking

Properly accounting for utility hookups (electrical, plumbing) as well as off-street parking needs is crucial for functional ADU designs that meet local codes.


If aging in place or multi-generational living is a priority, incorporate accessibility features like step-free entries, wider doorways, grip bars, and easily-accessible bathroom/kitchen layouts.

Architectural Style

To blend seamlessly with your property, the ADU design should complement your primary home’s architectural style, colors, materials and overall aesthetic. Consistent elements create a cohesive look.

Indoor-Outdoor Flow

Access to private outdoor space like patios or yards enhances ADU livability. Design elements like large windows/doors can create a indoor-outdoor living experience.

Flexibility for the Future

Versatile, open ADU floor plans allow for adapting uses over time as needs change (e.g. office, rental, in-law suite). Also consider potential expansion capabilities.

Our Process

At LUX Custom Homes, we pride ourselves on providing a seamless, full-service experience for all your ADU needs. Here’s how our process works:

Custom ADU's


Consultation & Feasibility Study

We start with an in-depth consultation to understand your ADU goals, space requirements, budget, and overall vision. Our team then conducts a comprehensive site evaluation and feasibility study for your specific property


ADU Design & Planning

With your needs mapped out, our talented designers get to work crafting beautiful, functional ADU plans that maximize your space and budget. We guide you through choosing finishes, layouts, and styles that complement your main home.


ADU Permitting & Approvals

Our experts handle all the complexities of permitting, zoning approvals, architectural reviews, and any other requirements. We ensure your ADU plans check every box.


Construction Phase

Our team initiates the full construction process from site prep and foundation pouring to framing, electrical, plumbing, interior build-outs, and all finish work.


Hand Over Keys To Your ADU

We ensure your ADU meets all codes and quality standards through every necessary inspection phase. Then you’ll receive a comprehensive final walkthrough before moving in.

ADU Building Contractor in Ventura & Santa Barbara County

If you’re considering adding an Accessory Dwelling Unit (ADU) to your property, our top-tier ADU building services in Ventura and Santa Barbara County are here to help you every step of the way. Our experienced team specializes in designing and constructing ADUs that perfectly match your vision and needs, ensuring a seamless and stress-free process from start to finish.

Why Choose Us To Build An ADU?

  1. Expertise and Experience: With years of experience in the construction industry, our skilled professionals have the knowledge and expertise to handle every aspect of ADU construction, from initial design to final touches.

  2. Custom Designs: We understand that every homeowner has unique requirements. Our custom design services ensure your ADU is tailored to your specific needs, whether you’re looking for a small, cozy unit or a larger, more spacious living area.

  3. Quality Materials and Craftsmanship: We use only the highest quality materials and employ meticulous craftsmanship to ensure your ADU is built to last. Our attention to detail guarantees a beautiful, durable, and functional space.

  4. Competitive Pricing: We offer competitive pricing without compromising on quality. Our transparent pricing structure means no hidden costs, providing you with peace of mind throughout the project.

  5. Comprehensive Services: From obtaining permits to final inspections, we handle it all. Our comprehensive services ensure a hassle-free experience, allowing you to focus on enjoying your new ADU.

Ventura County ADU Accessory Dwelling Unit

Where We Build ADU's

Our ADU building services are available in all cities across Ventura and Santa Barbara County, including but not limited to:

Ventura County:

  • Ventura. Oxnard, Thousand Oaks, Simi Valley, Camarillo, Moorpark, Santa Paula, Fillmore, Port Hueneme, Ojai

Santa Barbara County:

  • Santa Barbara, Goleta, Carpinteria, Lompoc, Solvang, Buellton, San Ynez And Surrounding Areas.

Quality ADU Construction

ADU Cost Calculator

Unlock Your ADU Potential with Our Comprehensive ADU Cost Calculator

Discover the financial outline of your ADU project before breaking ground. Our detailed cost calculator helps you anticipate expenses, manage your budget effectively, and move forward with your plans assuredly, knowing every cost aspect is accounted for. 

How Much To Build An ADU

ADU's Built Better

Whether you desire a modern, contemporary look or a timeless, traditional style, LUX Custom Homes has the expertise to bring your ADU to life. Contact us today to schedule a consultation and start your journey towards a stunning, custom Additional Dwelling Unit you can be proud of. 

LUX Custom Homes

Custom ADU

Are You Ready For A Great ADU Building Experience?

We’re here to make your dream home a reality. With our dedication to quality, innovation, and client satisfaction, we ensure a seamless and enjoyable experience from start to finish. Let’s build your perfect home together – get in touch with us today!