Property owners across San Los Angeles County often face challenges in expanding housing options for growing families, rental opportunities, or community development. Multi Dwelling Units (MDUs) offer a practical solution, but without careful planning, projects may encounter permitting delays, zoning conflicts, or inefficient designs.
At A1 ADU Contractor, we specialize in professional MDU construction and design services in San Los Angeles County. Our team assesses each property individually, crafting units that are functional, aesthetically appealing, and fully compliant with local building regulations.
Developing MDUs is more than adding multiple living spaces—it’s about optimizing property potential, enhancing community value, and ensuring long-term functionality. Our services in San Los Angeles County include:
Problem: Narrow or irregularly shaped parcels make multi-unit construction difficult. Solution: We design clever layouts that utilize vertical and horizontal space efficiently while maintaining comfort.
Problem: Local ordinances may limit building height, density, or placement. Solution: Our team ensures all MDU plans comply with San Los Angeles County zoning and permit requirements.
Problem: Connecting plumbing, electrical, and HVAC systems for multiple units can be complex. Solution: We design integrated utility plans for seamless operation without costly adjustments.
Problem: Multiple units can disrupt the aesthetic flow of a property. Solution: Our designs focus on architectural harmony and curb appeal, enhancing property value.
My garage was just wasted space before this project. The transformation into a livable ADU was done quickly and looks high quality. Every visitor thinks it’s a brand new build, not a conversion.
We are thrilled with the ADU renovation A1 ADU Contractor completed for us. Chris was incredibly knowledgeable and guided us through the whole process seamlessly. The quality of work exceeded our expectations, and we couldn't be happier with our new space!
We wanted a backyard ADU for rental income, and choosing an A1 ADU Contractor in Sherman Oaks was the best move we made. They were patient with all our questions and helped us design something that truly fit our lot. Even after some light winter rain, they kept everything moving smoothly. The craftsmanship is solid and you can tell they care about the details. The space feels modern yet comfortable. We’re beyond grateful and would recommend them without hesitation.
I hired a contractor to build an accessory dwelling unit in my backyard. From the first consultation to the final walkthrough, the team was professional and knowledgeable. They helped design the unit efficiently, handled all permits, and kept the construction site organized and clean. The quality of work exceeded my expectations, and the project was completed on time. I’m extremely happy with the result.
We replaced our roof this winter in Sherman Oaks and couldn’t be happier. The team was respectful, hardworking, and detail-oriented. Even with occasional rain, they stayed organized and careful. Our home feels safer and looks refreshed. We highly recommend them for anyone needing roofing work.
We hired an A1 ADU Contractor in Sherman Oaks to build a detached ADU in our backyard, and the whole experience honestly exceeded our expectations. Even with the cooler winter mornings and a few rainy days, the crew stayed on schedule and kept everything clean and organized. They explained every step in simple terms so we always knew what was happening. The new space feels warm, bright, and perfect for our in-laws. It’s amazing how smoothly everything went from start to finish. We’re so happy with the final result and highly recommend them to anyone thinking about building an ADU.
I recently hired A1 ADU Contractor for a remodeling project at my home in Sherman Oaks and I couldn’t be happier with the results From the initial planning to the final walkthrough the team was professional communicative and detail oriented They truly did an amazing job bringing my vision to life. If you’re looking for a reliable contractor in the Valley I highly recommend them
Team worker made the process painless. The garage door conversion turned out seamless . Thanks a lot good service
I had a stressful lockout situation late at night, but AJ Locksmith is a game-changer. I called their emergency number, and the person I spoke with was calm and courteous. The locksmith, Robert, called when he was on his way and arrived in under 20 minutes. He was extremely professional and friendly, taking one look at the situation and unlocking my door without damaging anything. The best part was that the final cost was exactly as quoted over the phone. No surprise charges or hidden here somsd. I would highly recommend this company to anyone in need of a reliable emergency locksmith.
Professional team delivering solid ADU construction, clear communication, dependable timelines, and quality workmanship.
Our MDU solutions cover every step of design and planning:
Each project is designed to maximize livability, maintain architectural consistency, and deliver long-term investment value.
We start with a detailed property assessment, understanding your objectives and identifying opportunities for MDU development.
Our team creates personalized layouts, factoring in zoning, utilities, and structural requirements. We provide 3D models and detailed construction plans for a clear vision of the final project.
We deliver complete, permit-ready documentation, guiding your MDU project from concept to construction while minimizing delays and ensuring compliance with county regulations.
Consider consulting our team if you experience:
A1 ADU Contractor blends professional experience with innovative solutions to deliver MDUs that are functional, compliant, and visually cohesive.
We’ve supported property owners in building duplexes, triplexes, and larger multi-unit complexes. Each project begins with a thorough property evaluation and concludes with functional, attractive units customized to the client’s vision.
We proudly provide MDU construction services across San Los Angeles County, including communities such as Pasadena, Glendale, Burbank, and La Cañada Flintridge. Our designs ensure properties are optimized, code-compliant, and ready for construction.
San Los Angeles County residents praise A1 ADU Contractor for:
Our positive reviews reflect our dedication to delivering functional, compliant, and visually appealing MDU solutions.
Don’t wait to maximize your property’s potential with professionally designed MDUs. Contact A1 ADU Contractor today for permit-ready plans, personalized solutions, and expert guidance for your multi-unit construction project.
Call now or submit our contact form to get started!
The $40,000 grant in California typically refers to the CalHFA ADU Grant Program, which offers forgivable loans of up to $40,000 to assist homeowners with pre-development and non-recurring closing costs associated with building an Accessory Dwelling Unit (ADU) or Junior ADU (JADU). This program is designed to increase the state's affordable housing stock. Funds can be used for expenses like planning, design, permits, impact fees, and site preparation. The loan is forgiven if the homeowner maintains the property as a rental for an affordable rate to a low-income household for a minimum of five years. For a detailed breakdown of eligibility and the application process for Sherman Oaks residents, we recommend our internal article, Unlocking The $40,000 CalHFA ADU Grant For Your Sherman Oaks Property.
In Los Angeles County, the number of Accessory Dwelling Units (ADUs) allowed on a single-family residential property is generally governed by state law. A property can typically have one ADU and one Junior ADU (JADU). However, on properties with an existing or proposed multi-family building, up to two detached ADUs may be permitted, and multiple attached ADUs (up to 25% of the existing units) can be created through the conversion of non-livable space. Local zoning and specific lot conditions, such as size and utility capacity, can affect these allowances. For a detailed look at a popular configuration, including considerations for building above existing structures, see our resource on ADU Above Garage in Los Angeles County. Always consult with the local planning department for your specific parcel.
The cost comparison between building an ADU and buying a prefab unit is nuanced. Generally, a prefabricated ADU can be cheaper upfront due to controlled factory construction, which reduces material waste and labor time. However, site-built ADUs offer greater customization and may have lower per-square-foot costs for larger projects, though they face more variables like weather delays and contractor availability. Key factors include site preparation costs (foundation, utilities, permits), which are significant for both. A prefab might have a faster timeline, reducing financing costs. Ultimately, a detailed quote for each option on your specific property is essential, as local permit fees, utility hookups, and site conditions can dramatically sway the total cost.
Yes, under California state law, you can generally build two Accessory Dwelling Units (ADUs) on a single-family residential property. This typically includes one traditional ADU (either attached or detached) and one Junior ADU (JADU) within the walls of the primary residence. For multi-family properties, up to two detached ADUs are usually permitted. However, specific local zoning ordinances, lot size, and setback requirements from your city or county can impose additional restrictions or allowances. It is crucial to consult with your local planning department and a professional ADU builder to understand the exact parameters for your parcel. For creative conversion ideas that maximize your property's potential, see our internal article Transform Your Garage into an In-Law Suite | A1 ADU Contractor Los Angeles.
Our service areas include: Glendale, Burbank, Van Nuys, North Hollywood, Reseda, Bel Air, Mission Hills, Sylmar, Pacoima, Sun Valley, Sherman Oaks, Encino, Studio City, Panorama City, Canoga Park, Tarzana, Valley Village, Toluca Lake, San Fernando, Valley Glen, Lake Balboa, Granada Hills, Winnetka, North Hills, the San Fernando Valley, and throughout Los Angeles County.
13701 Riverside Dr #200, Sherman Oaks, CA 91423
Based in Sherman Oaks, CA, we are your trusted partner ADU building and transforming garages into functional and beautiful spaces. Serving the San Fernando Valley and Los Angeles County.
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Sat: Closed
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