Accessory Dwelling Unit California
Custom-Built ADUs Designed for Comfort, Flexibility, and Long-Term Value
Custom-Built ADUs Designed
An Accessory Dwelling Unit (ADU) is a second housing unit on a residential lot that contains a home. This can be separate or attached to the primary dwelling but is completely self-sufficient with a bathroom, living area, and fully operational kitchen, and can accommodate one or more people living inside.
In California, ADUs are supported as a key part of the solution to the housing crisis. Whether it’s a rental unit, a guest house or a family member seeking extended family living, ADUs provide a legal and practical way to add livable areas to your existing home without having to acquire more property.
TESTIMONIALS
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“Creation 7 was absolutely fantastic to work with for our addition and remodel project. They were not only our builders or the project, but they also did our design. Eyal and his team had an incredible eye for the architecture design of the build as well an impeccable attention to detail.”
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“We hired Creation 7 to build our home office + gym. They were right on time. Job was done while environment always clean and neat. Didn't feel anyone even working around the house. Project was completed within the agreed budget and timeline”
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“Eyal, Avi and the entire Creation 7 team is a joy to work with. They are true professionals and do the highest quality through work. It is such a relief to have found a company that is trustworthy, on time, efficient, approachable and kind like Creation 7. ”
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Contact us for your free consultation
Our Customer Service team is happy to help. Call 925-326-5689 Or fill out the form to schedule an appointment.
Common Types of ADUs:
- Detached Units– Standalone structures separated from the main house.
- Attached Units– Built as an extension of the primary residence.
- Garage Conversions– Transforming an existing garage into a livable space.
- Above-Garage or Basement Units– Utilizing vertical space creatively.
- Junior ADUs (JADUs)– Compact units within the existing footprint of your home, typically under 500 sq. ft.
California state law now has fewer barriers in place, decreasing the complexity in constructing an ADU, making this the perfect opportunity to have an ADU built on your property.
Why Build an ADU in California?
The advantages of building an ADU are both immediate and long-term. Homeowners across California are choosing to invest in ADUs for the following reasons:
Rental Income Potential
Renting out an ADU can generate steady monthly income. With rising housing demand across California, ADUs are attractive to tenants seeking affordable living options in desirable neighborhoods.
Support for Multigenerational Families
ADUs provide a perfect solution for families with aging parents, young adults returning home, or long-term guests. These spaces offer privacy and independence while keeping loved ones close.
Increased Property Value
Studies have shown that homes with legal, well-designed ADUs can sell for significantly more than comparable properties without them. ADUs improve a property’s functionality and future resale potential.
Flexible Use Cases
Accessory Dwelling Units (ADUs) can function as home offices, short-term rentals, art studios, or space for a caregiver. They can change with your needs over time.
Favorable State Laws
California laws such as SB 9, AB 2221, and SB 897 want to mitigate the waiting times for ADU approvals by making the zoning restrictions more flexible, eliminating required minimum lot sizes, and permitting applications to be reviewed faster.
Our ADU Construction Services
Creation7 is your full-service partner in planning and building an ADU. Whether you are just beginning to think about the project or are ready to break ground, our system and experience of years of residential building and permit control in Northern California will make the process seamless.
Here are the ways we assist:
- Site Evaluation & Feasibility Analysis
We begin with a comprehensive site assessment to evaluate zoning compliance, site constraints, access to utilities, and buildable area. This will give you a budget-conscious project that is compliant right from the start. - Architectural Design & Space Planning
Our in-house architects work with you to design your own custom ADU per your property layout and programmed functional space requirements. We’ll make sure every square foot is validated for livability, accessibility, and harmony with your primary house. - Permitting & Regulatory Compliance
We manage all submissions to your local planning and building department, navigate any reviews or adjustments, and ensure full adherence to California ADU laws and city-specific codes. Our team minimizes delays by anticipating permit challenges early in the process. - Construction Management & Build Execution
As a licensed general contractor, we manage the entire build — from site prep and foundations, to framing, plumbing, electrical, and finishing. Our job site supervisors are onsite every day to ensure progress, QA, and communication. - Final Inspection & Handover
We conduct final inspections and deliver a move-in-ready ADU with a certificate of occupancy. Post-project support is also available for any maintenance, upgrades, or additions you may need in the future.
Types of ADUs We Build
We offer tailored solutions based on your lot size, budget, and goals. The most common ADU types we build include:
- Detached ADUs: Ideal for full independence; perfect for rental units or guest homes.
- Attached ADUs: Share a wall with the main home but function as a standalone unit.
- Above-Garage ADUs: Great for maximizing vertical space in urban settings.
- Garage Conversions: Cost-effective and fast to build, ideal for existing detached garages.
- Basement Conversions: Utilize underused space for private, comfortable living.
- Junior ADUs (JADUs): Built within the home, perfect for compact, budget-friendly housing.
Why Choose Creation7 for Your ADU Project?
At Creation7, we’ve earned the trust of homeowners across Northern California for delivering exceptional residential construction with personalized service. Here’s why we’re the right choice for your ADU project:
- Fully Licensed & Insured (License #1022826)
Our general contractor license ensures your project is built to state standards with complete liability coverage. - Turnkey Services
We handle everything — design, engineering, permitting, and construction — under one roof, giving you a streamlined experience. - Proven Experience with Local Cities
We’ve successfully completed projects in Walnut Creek, San Ramon, Napa, Pleasanton, and surrounding cities — and understand each city’s permitting requirements and building codes. - Transparent Pricing & Budget Control
We provide detailed estimates, realistic timelines, and proactive cost management to avoid surprises. - Client-First Approach
Our dedicated teams communicate with you at every step to ensure your vision is fully realized, on time and on budget.
Ready to Build Your ADU? Let's Talk.
No matter if you need an in-law suite, rental income, or a flexible live-work space, Creation7 can assist you in creating an ADU. Our ADU experts will assist you from your initial consultation to your final inspection to make sure your ADU project meets all requirements and is adding lasting value to your property, while still adhering to the state of California requirements.
- Phone: 925-326-5689
- Email: [email protected]
- Address: 33 Quail Court, Suite 300, Walnut Creek, California 94596
- License #: 1022826