Accessory Dwelling Unit Construction
ADU Construction in the San Francisco Bay Area
- ADU Design & Planning
Garage Conversions
Detached New Construction
Attached ADUs & Additions
Building Smart, Beautiful, and Functional ADU's in the Bay Area
An Accessory Dwelling Unit (ADU) is more than just a home addition; it's a strategic investment that can transform your property. Whether you’re looking to create a space for a family member, generate passive rental income, or design a modern home office, an ADU offers unparalleled flexibility and value. As your trusted San Francisco general contractor, EDRI Construction specializes in full-service accessory dwelling unit construction, managing your project from the initial blueprint to the final walkthrough. We understand the specific zoning regulations and requirements of the Bay Area and are committed to delivering a seamless, stress-free building experience from start to finish.
Our Comprehensive ADU Construction Process
Our full-service approach means we handle every phase of your project. As the leading ADU contractors in the Bay Area, we have a deep understanding of what it takes to get a project done efficiently and correctly, from initial consultation to final inspection. We believe in providing transparent, hands-on service and are dedicated to making the entire process as easy as possible for you.
ADU Design & Planning
Our team begins by working closely with you to understand your vision, needs, and budget. We help you choose the best type of ADU for your property and develop a comprehensive design. We also take the lead on all necessary permit applications and documentation, navigating the complexities of San Francisco regulations for you. We conduct thorough feasibility studies to identify potential site challenges early. Our architects maximize every inch of allowable space, ensuring your design is not only compliant but fully optimized for comfort and style.
Garage Conversions
We can transform an underutilized garage into a modern, fully functional living space. This is a highly popular option for homeowners who want to maximize their property's footprint without extensive new construction. We handle everything from structural changes to interior finishes to create a stunning, compliant space. This process often involves upgrading foundations and insulating walls to meet strict residential codes. We ensure your converted space is comfortable year-round, effectively turning cold storage into a cozy, high-value apartment.
Detached New Construction
We specialize in building custom, stand-alone units in your backyard. This option offers maximum privacy for occupants and provides the most design freedom. Our expert team will manage all aspects of the build, from laying the foundation to completing the final finishes. We handle all utility trenching and site preparation required for standalone structures. Whether you envision a contemporary studio or a traditional cottage, we deliver a turnkey unit that feels like a custom home.
Attached ADUs & Additions
Seamlessly integrate a new living space onto your existing home's structure. Whether you want to add a new suite for a family member or extend your living space, our expert craftsmanship ensures a flawless blend with your current home’s architecture. We carefully assess your home's existing load-bearing capacity to ensure structural safety. Our design team matches exterior siding, roofing, and trim details so the addition looks like it has always been part of the original property.
Custom Interiors & Smart Design
An ADU shouldn't feel like a compromise. We specialized in optimizing smaller footprints with intelligent layouts and luxury finishes. From full-sized chef's kitchens to spa-inspired bathrooms, we incorporate high-end materials that mirror the quality of your main residence. Our design team ensures every square foot serves a purpose, creating a space that feels spacious, modern, and inviting for any occupant.
The EDRI Difference: Quality and Craftsmanship
Our commitment to quality extends beyond the services listed. We take pride in our meticulous craftsmanship and the use of high-quality, durable materials. As a true one-stop shop, we coordinate all subcontractors and manage every detail in-house, ensuring a consistent level of quality throughout the entire project. This hands-on approach is why so many Bay Area homeowners trust us with their projects. By keeping our team in-house, we eliminate the communication gaps common with outsourced crews. This integrated model allows us to maintain strict quality control and adhere to timelines, giving you peace of mind throughout the build.
Sustainable & Energy-Efficient Building
In the Bay Area, energy efficiency is paramount. We construct ADUs with sustainability in mind, utilizing advanced insulation, energy-star rated windows, and eco-friendly building materials. Whether you are interested in solar-ready roofing or tankless water heaters, we implement green building practices that reduce your environmental impact and lower long-term utility costs for tenants or family members.
Maximizing Your Property's Potential
Building an ADU is a wise financial move, offering a powerful way to increase your property value. Whether you use it as a rental unit to generate consistent income, a dedicated office space to boost productivity, or a safe and comfortable home for a loved one, an ADU provides both immediate and long-term returns. We help you design a space that not only meets your needs today but also contributes significantly to your home’s overall worth, ensuring a smart investment for the future.
Seamless Communication & Project Management
We know that communication is the foundation of a successful project. From the initial meeting to the final walkthrough, we keep you informed every step of the way. Our dedicated project managers are always available to answer your questions, provide updates, and ensure your project stays on track and on budget. We believe that a well-managed project is a stress-free project for our clients.
Tailored Multi-Generational Living
Keep your family close while maintaining privacy with a custom "granny flat" or in-law suite. We design accessible, comfortable living spaces perfect for aging parents or returning adult children. Our team considers essential accessibility features—like wider doorways and stepless entries—ensuring the unit remains a safe, functional, and dignified home for your loved ones for years to come. Contact us to discuss your family's needs!
Ready to Start Your Project?






Ready to unlock the full potential of your property? Let EDRI Construction be your guide. We are the leading ADU contractors in the Bay Area, known for our integrity and flawless results. Schedule Your Free Consultation to discuss your vision, and let us show you why we are the right team for your next big project.
