Limited living space for growing families
Our ADU construction services provide additional living space, allowing families to stay together comfortably.
ADU & JADU Construction in the Bay Area is a specialized service that helps homeowners maximize their property's potential through additional living spaces. Our California ADU construction services provide affordable solutions tailored to your needs, ensuring compliance with local regulations and enhancing your property value.

ADU & JADU Construction in the Bay Area involves building additional dwelling units (ADUs) and junior accessory dwelling units (JADUs) on residential properties. These structures provide extra living space, whether for family members, guests, or rental income. Our team uses quality materials and adheres to California's building codes, ensuring a seamless construction process.
Homeowners in California often need ADUs and JADUs to accommodate growing families, create rental opportunities, or increase property value. Our California JADU construction experts understand local zoning laws and can guide you through the permitting process, ensuring your project meets all necessary regulations.
Our ADU & JADU construction services cover everything from initial design to final inspections, ensuring a comprehensive approach to your project.
We conduct a thorough site assessment to evaluate zoning regulations and ensure feasibility for your ADU or JADU.
Our team creates custom design plans tailored to your specifications and local regulations, ensuring a perfect fit for your property.
We oversee the entire construction process, coordinating with subcontractors and ensuring quality standards are met.
Our services include handling final inspections and obtaining necessary approvals to ensure your ADU or JADU is ready for use.
We start with a thorough consultation to understand your needs, budget, and vision for your ADU or JADU.
Our design team creates plans that comply with local regulations and fit your aesthetic preferences, ensuring a perfect match for your property.
We handle all necessary permits and inspections required for ADU & JADU construction in California, simplifying the process for you.
Our skilled team uses quality materials, including drywall and insulation, to construct your ADU or JADU efficiently and to code.
Once construction is complete, we conduct a final walkthrough to ensure your satisfaction and address any last-minute details.
Purpose-built equipment, used by trained crews — so the job is done accurately the first time.
Used for precise cutting of framing materials during construction.
Essential for accurate measurements to ensure compliance with building codes.
Utilized for drilling and fastening components securely.
Ensures that structures are built level, preventing future issues.
The homeowner had an underutilized backyard with an old shed that was not functional.
Now, the space features a fully equipped ADU with a kitchenette and bathroom, adding 500 sq. ft. of livable space.
The garage was cluttered and rarely used, taking up valuable space.
Post-renovation, it now serves as a stylish JADU with a separate entrance and modern amenities.
The property had limited space for family and guests, impacting comfort.
With the new ADU, the homeowner can host guests or rent it out, generating additional income.
ADU & JADU construction addresses common challenges homeowners face, providing practical solutions for modern living.
Ask a pro →Our ADU construction services provide additional living space, allowing families to stay together comfortably.
Building an ADU can create rental income, helping homeowners offset costs and provide affordable housing options.
Our team is well-versed in California's zoning laws, ensuring a smooth permitting process for your ADU or JADU.
Every project is priced individually: cost depends on size, materials, design and permits. We provide a free, written, itemized estimate after an on-site consultation.
The cost of building an ADU or JADU in California can vary widely based on size, design, and materials. Factors such as site preparation, material choices, and labor costs can influence the final price. Our affordable ADU construction California services aim to provide value without compromising quality. Every project is priced individually: cost depends on size, materials, design and permits. We provide a free, written, itemized estimate after an on-site consultation.
Investing in an ADU or JADU not only enhances your property but also provides long-term financial benefits.
Larger ADUs require more materials and labor, increasing overall costs.
Custom designs may involve additional planning and architectural fees.
If significant grading or landscaping is needed, this can add to the project cost.
“Flume Construction transformed my backyard into a beautiful ADU. The team was professional, and the results exceeded my expectations. I highly recommend their services!”
John D.Homeowner, San Mateo
“I had a fantastic experience with Flume Construction. They guided me through the entire JADU construction process, and now I have a lovely space for my guests.”
Sarah L.Homeowner, Cupertino
“Flume Construction delivered on time and within budget. My new ADU has significantly increased my property's value, and I'm thrilled with the outcome.”
Mike T.Investor, Belmont
Real photos from our own job sites — finished rooms and work in progress.
An ADU is an additional dwelling unit built on a residential property. Construction typically involves obtaining permits, designing a suitable layout, and adhering to California building codes.
California ADU construction services must comply with state and local zoning laws, including size, height, and setback requirements. Our team ensures all regulations are met.
Every project is priced individually: cost depends on size, materials, design and permits. We provide a free, written, itemized estimate after an on-site consultation.
The ADU construction process can take anywhere from 3 to 6 months, depending on the complexity of the project and permitting timelines.
Our ADU & JADU construction services are available throughout the Bay Area, including major cities and their surrounding areas. We adapt our approach to meet local regulations and community needs, ensuring a seamless experience for our clients.
Ready to transform your property? Contact us today for a free consultation and see how our services can enhance your living space.
Request a Quote 669-243-1497 →We invite you to reach out to Flume Construction & Remodeling for any inquiries or to schedule an estimate. Our team is available Monday through Friday and typically responds within 24 hours.