
We specialize in building beautiful attached ADU spaces that add comfort and long term value to your property.
Our team manages every step, providing a stress free experience from initial plans to final inspection.
Attached ADU Construction

Why Choose Us?
When you choose us for your Attached ADU Construction project, you receive more than exceptional craftsmanship. You gain custom designed living space that matches your lifestyle, elevates your property value, and supports long term comfort.
Our team works closely with you throughout the process, ensuring every detail reflects your vision. From functionality to finish, we deliver results that exceed expectations.
Enjoy the benefits of a well planned attached ADU that brings convenience, value, and beauty to your home. Contact us today and let us begin building your ideal space.
20 + Years of Attached ADU Construction experience experts in Bay Area Attached ADU Construction regulations.
Specialists in Attached ADU Construction
We know local zoning laws and permit processes in Bay Area CA – ensuring faster approvals.
Local Expertise
No hidden costs. We provide a detailed fixed quote and stick to it.
Transparent Pricing
Your dedicated project manager keeps you updated every step of the way, ensuring on-time completion.
Project Management
• Increase Your Property Value and Rental Income
• Turn Key Design and Build
• Experienced Licensed Contractor
• Quality and Warranty
Key Attached ADU Construction Benefits
Room Addition
Union City, CA
Home Addition
Hayward, CA
ADU Build & Outdoor Remodeling
San Jose, CA
We transform unused areas into functional attached ADU rooms that enhance your property.
• Attached ADU Room Expansion
We convert a portion of your garage into a complete attached ADU living space with comfort and style.
• Attached ADU Garage Integration
We design and build upper level attached ADUs that blend smoothly with your existing structure.
• Attached ADU Second Level Addition
We create private attached living quarters ideal for family members or long term guests.
• Attached ADU Family Suite
We build attached ADU spaces perfect for generating reliable ongoing rental income.
• Attached ADU Rental Unit
Our Santa Clara Attached ADU Construction Services
Choosing Done Right Builders and Remodeling as your Santa Clara building contractor means choosing excellence, elegance, and dependable results. Here is a breakdown of our Attached ADU Construction possibilities for your Santa Clara home:
Our commitment to exceptional customer services goes beyond the blueprints – we’re dedicated listeners who prioritize understanding every detail in your home before tailoring your upgrade based on your needs. This personalized approach sets us apart as a go-to Santa Clara building contractor, ensuring your vision becomes a living reality.
ABOUT OUR COMPANY
Transforming Bay Area Homes, One Dream at a Time.
48
In-Progress Sites
282
Projects Completed
35
Professionals

An attached ADU is a unit that shares a wall with the main dwelling but has a separate entrance and living space. It can be an extension of the existing structure or located above a garage.
Types of ADUs Allowed
• Attached ADU
• Detached ADU
A detached ADU is a separate, standalone structure from the main dwelling. It is typically located in the backyard and has essential amenities, providing complete independence.
• Junior ADU
A Junior ADU is a smaller, self-contained unit within the main dwelling. It has its entrance, bathroom, and kitchenette but could also share facilities (like a bathroom or bedroom) with the main home.
Note: Detached ADUs are generally single-story structures. However, if you're considering adding a new second story to an attached or Junior ADU, it must undergo an architectural review process.
Santa Clara Attached ADU Construction Requirements at a Glance
While attached ADUs offer strong investment potential, they require careful planning and full compliance with Santa Clara building codes. A clear understanding of these guidelines ensures a smooth and successful construction process.
Here is a summary of what you should know about Santa Clara Attached ADU Construction projects:

We begin with a detailed consultation at your home to understand your requirements, budget, and timeline. Our team will assess the feasibility of the garage conversion and discuss any zoning or permitting requirements.
• Initial Consultation
Our experts will work closely with you to design a functional and aesthetically pleasing ADU layout. Also, we handle all the necessary architectural plans and ensure compliance with local building codes.
• Design and Planning
We handle all the paperwork and permitting processes ensuring your garage conversion meets all regulatory standards.
• Obtaining Permits
Once permits are secured, we begin the conversion process. This involves clearing out the existing garage space and preparing it for construction.
• Demolition and Preparation
Our skilled Bay Area building contractors will execute the construction phase transforming your garage space into a fully functional ADU. The construction phase includes framing electrical work plumbing insulation flooring and all other necessary installations.
• Construction Starts
We pay close attention to detail during the finishing phase. At Done Right Builders and Remodeling we use modern fixtures to ensure your interior looks stylish and meets your design preferences.
• Interior Finishing
Our Bay Area Attached ADU Construction Process
Here is a step by step process of how we complete your Attached ADU Construction project from start to finish:
All work undergoes thorough inspections to ensure compliance with building codes and safety standards.
• Inspections
We add the final touches such as paint fixtures and any additional customizations you desire. The area is thoroughly cleaned and prepared for your use.
• Final Touches and Clean-Up
Once you are satisfied with the project we will provide all necessary documentation and records related to the construction. Enjoy your newly constructed space.
• Client Walkthrough and Approval
Once you are satisfied with the project, we will provide all necessary documentation and records related to the construction. Enjoy your newly constructed space.
• Handover and Documentation
We offer ongoing support and assistance addressing any questions or concerns you may have. We make the process as seamless and stress free as possible and ensure that your Bay Area attached ADU construction increases your property value and quality of living.
• Post-Construction Support

I considered multiple contractors from which I selected Done Right. They listened well and came up with a great room addition design using their in-house designer. Throughout the project, they were very responsive and proved to be masters problem solvers. I recommend Done Right as a general contractor company.
John Allison
San Jose
Done Right Builders and Remodeling Just finished my kitchen remodeling, very happy and pleased with the professionalism of Done Right. thank you to entire work in crew well done. Oscar Kitchen Gourmet it's open. Dan and Joshua thanks a lot for your support as well!
Alicia Potter
Santa Clara
My remodeling project was initially scoped out and an accurate estimate was provided. We then worked with a design person and went through three iterations of renderings to get to the final design. What I really liked is that Done Right Builders and Remodeling is a company that has a cadre of craftsman as specialists in their craft.
Edward B. Suarez
Fremont

I considered multiple contractors from which I selected Done Right. They listened well and came up with a great room addition design using their in-house designer. Throughout the project, they were very responsive and proved to be masters problem solvers. I recommend Done Right as a general contractor company.
John Allison
San Jose
Done Right Builders and Remodeling Just finished my kitchen remodeling, very happy and pleased with the professionalism of Done Right. thank you to entire work in crew well done. Oscar Kitchen Gourmet it's open. Dan and Joshua thanks a lot for your support as well!
Alicia Potter
Santa Clara
My remodeling project was initially scoped out and an accurate estimate was provided. We then worked with a design person and went through three iterations of renderings to get to the final design. What I really liked is that Done Right Builders and Remodeling is a company that has a cadre of craftsman as specialists in their craft.
Edward B. Suarez
Fremont