ADU Construction in Sunnyvale
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- ADUs Construction
- Sunnyvale
- Design custom ADUs for your Sunnyvale property.
- Turn unused spaces into comfortable living areas.
- Transform your garage into a functional rental unit.
- Get expert permit management for local regulations.
- Build a private guest cottage in your backyard.
- Our team handles complete construction seamlessly.
Why the Bay Area Chooses Gadi Construction
Our home remodeling project is finally complete (almost 2 year ordeal), but team at Gadi Construction made this navigation manageable.
First shout out to Millie Studnict(Project Manager) . If you've ever gone through a major home renovation, you'd have many questions, decisions, surprises, inspections, and frustration. Throughout the entire process, Millie was always there with an answer, a solution, or simply the patience to walk us through the next step.
What I appreciated most was that Millie genuinely cared. No matter how busy things got, she always returned calls, responded to emails, and kept us informed. There were plenty of times when we were unsure about something, and Millie never made us feel like we were asking too many questions.
The entire Gadi team was great to work with as well. The crews showed up when they said they would, treated our home with respect, and were always courteous and professional. It was clear that everyone took pride in their work.
After dealing with the stress of restoring our home following a fire, it was a huge relief to have a contractor we could trust. The project is now complete, the final inspection has passed, and we're very happy with the outcome.
Thank you, Millie and Lucie and everyone at Gadi Construction..
Our home remodeling project is finally complete (almost 2 year ordeal), but team at Gadi Construction made this navigation manageable.<br><br>First shout out to Millie Studnict(Project Manager) . If you've ever gone through a major home renovation, you'd have many questions, decisions, surprises, inspections, and frustration. Throughout the entire process, Millie was always there with an answer, a solution, or simply the patience to walk us through the next step.<br><br>What I appreciated most was that Millie genuinely cared. No matter how busy things got, she always returned calls, responded to emails, and kept us informed. There were plenty of times when we were unsure about something, and Millie never made us feel like we were asking too many questions.<br><br>The entire Gadi team was great to work with as well. The crews showed up when they said they would, treated our home with respect, and were always courteous and professional. It was clear that everyone took pride in their work.<br><br>After dealing with the stress of restoring our home following a fire, it was a huge relief to have a contractor we could trust. The project is now complete, the final inspection has passed, and we're very happy with the outcome.<br><br>Thank you, Millie, and thank you to everyone at Gadi Construction for helping us get our home back.
Our home remodeling project is finally complete (almost 2 year ordeal), but team at Gadi Construction made this navigation manageable.
First shout out to Millie Studnict(Project Manager) . If you've ever gone through a major home renovation, you'd have many questions, decisions, surprises, inspections, and frustration. Throughout the entire process, Millie was always there with an answer, a solution, or simply the patience to walk us through the next step.
What I appreciated most was that Millie genuinely cared. No matter how busy things got, she always returned calls, responded to emails, and kept us informed. There were plenty of times when we were unsure about something, and Millie never made us feel like we were asking too many questions.
The entire Gadi team was great to work with as well. The crews showed up when they said they would, treated our home with respect, and were always courteous and professional. It was clear that everyone took pride in their work.
After dealing with the stress of restoring our home following a fire, it was a huge relief to have a contractor we could trust. The project is now complete, the final inspection has passed, and we're very happy with the outcome.
Thank you, Millie, and thank you to everyone at Gadi Construction for helping us get our home back.
I just wrapped a primary bathroom remodel with GADI.
Effie was a fantastic design partner – he understood our initial vision and worked with it to come up with something even better that we love.
Nadav did an amazing job managing the project. Communication throughout was constant & immediate via text, and we got the project done quickly and with minimal fuss. His team on the ground was also great across the board.
I'm hoping to work with Nadav & Effie on another project soon, and I highly recommend GADI!
I just wrapped a primary bathroom remodel with GADI.<br><br>Effie was a fantastic design partner – he understood our initial vision and worked with it to come up with something even better that we love.<br><br>Nadav did an amazing job managing the project. Communication throughout was constant & immediate via text, and we got the project done quickly and with minimal fuss. His team on the ground was also great across the board.<br><br>I'm hoping to work with Nadav & Effie on another project soon, and I highly recommend GADI!
I requested a quote for a job I need done and I had the pleasure of meeting Itay today. He was very professional and kind. Had good energy and reassured me that he will do everything he can for the best outcome. This is more of a review on Itay and I will update if I decide to hire them. But the initial process of getting a quote done was great because of Itay.
I recently hadflood damage to my home which requires extensive remodeling. I called a number of contractors And I was most impressed with Millie from Gadi construction.
Though we haven't gotten to the point of actual construction yet , Millie has come out and given me excellent guidance for remodeling bathrooms, kitchen, living area. I've never done remodeling before so it was nice to have somebody like Millie to
' hold my hand,' and take some of the stress off of making some major decisions. She has since returned phone calls promptly and feels more like a friend helping me rather than a person I hired or may hire.
Whether we use you or not in the end thank you Millie for helping me during this difficult time and I hope others see this review and can take advantage of your nice , kind personality and expertise.
Great experience with Gadi on my bathroom remodel. He hired experienced sub-contractors and made sure they showed up on time. Pricing is fair for the work done.
GADI had helped me in demolishing a big mirror wall and remodeling it into a dinning room. I couldn't be happier with the result. Esther and her crew were just amazing and made my dream came true. Great job!
Sunnyvale homeowners near landmarks like the iconic Sunnyvale Water Tower and the vibrant Murphy Avenue are finding new ways to make the most of their space, and building an ADU is one of the smartest choices. At Gadi Construction, we design and build Accessory Dwelling Units that are both beautiful and functional, turning underused areas into comfortable, livable spaces. Whether you need extra space for family, want to create a rental unit, or simply add value to your property, we make the process seamless and rewarding.
Each ADU we construct in Sunnyvale reflects the city’s innovative, modern character. With clean designs, quality craftsmanship, and energy-efficient materials, we help you expand your living space without compromising on style or comfort.
Our Kitchen Remodeling Process
We follow a seamless, structured process to ensure your kitchen remodel is smooth and stress-free from start to finish.
1
We begin by understanding your ideas, style preferences, and project goals to create a plan that aligns with your lifestyle.
2
Our experts design your kitchen in 3D so you can see exactly how the final space will look before construction begins.
3
We guide you in selecting high-quality materials from cabinets and lighting to flooring and countertops that complement Alameda’s architectural charm.
4
Our skilled craftsmen execute each stage with precision, care, and respect for your home.
5
Every detail is carefully inspected to ensure perfection, durability, and your complete satisfaction.
Custom ADUs Designed for Sunnyvale Homes
Sunnyvale’s blend of contemporary homes and family-friendly neighborhoods inspires creative ADU designs that are efficient, elegant, and built to last. At Gadi Construction, we tailor each ADU to your lifestyle combining practical layouts, stylish finishes, and lasting quality. Whether your goal is more space, income potential, or flexibility for the future, we bring your vision to life with precision and care.
Here are six popular ADU styles among Sunnyvale homeowners
A private, self-contained living space perfect for visiting family, guests, or tenants. Designed with comfort in mind, it includes all the essentials of a modern small home.
Maximize your property’s potential by transforming your existing garage into a sleek, functional living area. It’s a cost-effective way to expand without building new structures.
Ideal for families who want independence while staying connected. This design provides privacy, comfort, and accessibility perfect for multi-generational living.
Convert your unused basement into a warm, livable space. With high-quality insulation, modern lighting, and smart layout design, it becomes an ideal rental unit or private retreat.
For homeowners who prefer simplicity and low maintenance, this minimalist ADU offers efficient use of space, natural light, and an open design perfect for one or two people.
Create your dream office or creative studio in your backyard. Designed for productivity, it includes ample light, built-in storage, and a peaceful environment away from distractions.
Full-Service ADU Construction in Sunnyvale
At Gadi Construction, we handle everything from planning and permits to finishing touches. Our team ensures your ADU project is stress-free, on time, and built to local building standards. We use durable materials and smart design practices to ensure lasting comfort and performance.
Our services include:
- ADU Design & Space Planning
- Permit & Zoning Management
- Framing, Electrical & Plumbing Work
- Kitchenette and Bathroom Installation
- Interior Finishing & Flooring
- Energy-Efficient Upgrades
Want to get in touch?
We’d love to hear from you.
Here’s how you can reach us…
Tell us about your project and get a personalized, no-obligation quote.
We specialize in remodeling and construction – from kitchens to full home makeovers.
Let’s bring your vision to life with expert planning and transparent pricing.
OR CALL TODAY FOR A FREE ESTIMATE:
480-314-8016
Our Services
Home Remodel
Bring new life to your home with expert remodeling that combines style, comfort, and functionality. Upgrade your home from floor to ceiling with a custom remodel tailored to your needs and lifestyle.
Common Area Remodel
Kitchens are the centerpieces of your home; they’ve become the center of most modern homes, a place where family comes together to share tastes, love, and stories.
Kitchen Remodel
Kitchens are the centerpieces of your home; they’ve become the center of most modern homes, a place where family comes together to share tastes, love, and stories.
Bathroom Remodel
One of the most common remodeling projects for homeowners is to remodel the bathrooms in the house. After all, this is probably the first place you visit in the morning and the last place you visit at the end of the day.
Additions
Anyone can use an extra room in their home. It could be a space for business, like an Airbnb unit, daycare (yes, we’ve seen that happen) if you would like it or need an additional guest room or bedroom.
ADUs
Maximize your property’s potential with a custom-built ADU. Whether it’s for rental income, a home office, or additional living space, our team designs and builds functional, stylish units that blend seamlessly with your property.
Basement Remodel
Transform your basement into a beautiful, functional living space, a cozy retreat, home office, or guest suite with expert remodeling your family will love.
Start Your Sunnyvale ADU Project Today
Turn your unused space into a valuable addition to your home with Gadi Construction. Our experienced designers and builders make every step simple, efficient, and rewarding. Contact us today for a free consultation, and let’s design an ADU that fits your needs, enhances your property, and complements your Sunnyvale lifestyle.
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People Also Ask
The $40,000 grant you are referring to is the California ADU Grant Program, which provides funding to homeowners to help cover the costs of pre-construction work for an Accessory Dwelling Unit. This grant is specifically for expenses like architectural designs, soil tests, and permit fees, not for the actual construction. To qualify, the property must be your primary residence, and you must start the process before breaking ground. In the Santa Clara CA and San Jose CA area, this grant can be a valuable first step. Gadi Construction recommends reviewing the program details carefully, as funds are limited and distributed on a first-come, first-served basis through your local city or county building department.
The cost to build a 1200 sq ft ADU in California varies widely, typically ranging from $250,000 to $450,000 or more, depending on design, materials, and site conditions. In the Santa Clara and San Jose area, factors like local permit fees, utility connection costs, and labor rates can push prices higher. For a project of this size, custom construction often costs $300 to $400 per square foot, while prefab options may be more budget-friendly. To understand the financial trade-offs, we recommend reviewing our internal article titled 'Prefab Vs. Custom ADUs: Santa Clara Cost Analysis' at Prefab Vs. Custom ADUs: Santa Clara Cost Analysis. Gadi Construction advises clients to budget for unexpected expenses, such as soil testing or utility upgrades, which are common in this region. Always secure multiple bids and consult a local expert to get an accurate estimate for your specific lot.
The cost to build an Accessory Dwelling Unit (ADU) in Santa Clara County varies significantly based on size, design, and site conditions. For a standard 500 to 800 square foot detached unit, you can typically expect a range from $150,000 to $300,000 or more. This estimate generally covers foundation, framing, roofing, basic finishes, and essential systems. However, factors like site preparation, utility connections, and permit fees can add substantial costs. It is wise to budget for soft costs such as architectural plans and engineering, which are essential for compliance with local codes. For a comprehensive understanding of how to approach your project efficiently, we recommend reviewing our internal article titled 'Next Stage Design + Build Alternative in Santa Clara: GADI Construction Delivers Premium Renovations Without the Premium Price' Next Stage Design + Build Alternative in Santa Clara: GADI Construction Delivers Premium Renovations Without the Premium Price. Professional guidance is key to navigating these financial variables.
For accurate cost data, it is essential to focus on the Santa Clara and San Jose area, as the broader Bay Area has highly variable pricing. In this specific region, a prefab Accessory Dwelling Unit typically ranges from $150,000 to $300,000 for a standard one-bedroom unit, not including site preparation, permits, and foundation work. Total project costs, including installation, often land between $250,000 and $400,000. These figures are highly dependent on local labor rates and city-specific fees. For a detailed breakdown comparing prefab versus custom builds in your local market, we recommend reviewing our internal article titled 'Prefab Vs. Custom ADUs: Santa Clara Cost Analysis' at Prefab Vs. Custom ADUs: Santa Clara Cost Analysis. Gadi Construction advises that a thorough site evaluation is critical to get a binding quote for your specific property.
For homeowners in Sunnyvale, the cost of an Accessory Dwelling Unit (ADU) typically ranges from $200,000 to over $500,000, depending on size and complexity. A standard 500-square-foot detached unit generally costs between $250,000 and $350,000, while attached conversions or larger two-bedroom units can exceed $450,000. Key factors influencing your budget include foundation type, utility connections, and design finishes. It is critical to account for permit fees and impact fees, which in Sunnyvale can add $15,000 to $30,000 to your project. To ensure your project remains compliant with local zoning rules, we strongly recommend reviewing our internal article titled Santa Clara County ADU Planning Permission: The Complete 2026 Guide to Permits, Costs, and Regulations. This resource provides a detailed breakdown of current fees and regulatory steps specific to the Santa Clara County area.
For homeowners in Sunnyvale, understanding the local Accessory Dwelling Unit (ADU) code is essential for a successful project. The city has specific zoning regulations that differ from state mandates, particularly regarding lot size, setbacks, and parking requirements. For example, Sunnyvale typically requires a minimum lot size for detached ADUs and enforces strict height limits to maintain neighborhood character. Gadi Construction recommends reviewing the city's specific ordinance to ensure your design complies with local fire and safety codes. For the most current and detailed breakdown of these regulations, please refer to our internal article titled 'Santa Clara County ADU Planning Permission: The Complete 2026 Guide to Permits, Costs, and Regulations' at Santa Clara County ADU Planning Permission: The Complete 2026 Guide to Permits, Costs, and Regulations. This guide covers all the nuances of Sunnyvale's code to help you plan effectively.
