Santa Clara, CA Kitchen, Bath and Home Renovation Gadi Construction

ADU Construction in Sunnyvale

Sunnyvale homeowners 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

Personal Consultation

 We begin by understanding your ideas, style preferences, and project goals to create a plan that aligns with your lifestyle.

2

3D Design & Visualization

 Our experts design your kitchen in 3D so you can see exactly how the final space will look before construction begins.

3

Material Selection

We guide you in selecting high-quality materials from cabinets and lighting to flooring and countertops that complement Alameda’s architectural charm.

4

Construction Excellence

Our skilled craftsmen execute each stage with precision, care, and respect for your home.

5

Final Review & Quality Check

 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

1. Backyard Guest Cottage

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.

2. Garage Conversion ADU

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.

3. Attached ADU with Separate Entrance

 Ideal for families who want independence while staying connected. This design provides privacy, comfort, and accessibility perfect for multi-generational living.

4. Basement ADU Makeover

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.

5. Compact Studio Unit

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.

6. Work-from-Home Studio

 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.

Bathroom and Windows Remodel

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

Why the Bay Area Chooses Gadi Construction

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:
SAN JOSE AREA – 404-889-1000
SAN FRANCISCO AREA – (925) 639-3177

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 in California typically refers to the California Housing Finance Agency (CalHFA) ADU Grant Program. This initiative provides forgivable loans of up to $40,000 to qualified homeowners to cover pre-construction costs associated with building an Accessory Dwelling Unit (ADU) or Junior ADU (JADU). Eligible costs include expenses for planning, design, permitting, soil tests, and impact fees. The grant is designed to lower the financial barrier for creating new affordable housing. To qualify, applicants must meet income limits, intend to rent the ADU, and the property must be their primary residence. The program aims to increase the state's housing supply and promote affordability.

The cost comparison between building an Accessory Dwelling Unit (ADU) on-site versus buying a prefabricated one depends heavily on project specifics. Generally, prefab ADUs can be cheaper and faster due to controlled factory construction, which reduces labor time and material waste. However, site-built ADUs offer greater customization to match an existing home's architecture and navigate unique lot constraints, though they often incur higher labor costs and longer timelines. Key factors influencing cost include local permitting fees, foundation work, utility connections, and finish selections. A prefab unit might have a lower base price, but total installed cost with site work can narrow the gap. Thoroughly evaluating quotes for both options against your specific needs and local regulations is essential for an accurate budget.

The cost to build a 1000 sq ft Accessory Dwelling Unit (ADU) in California varies significantly based on location, design, and finishes. On average, you can expect a range from $200,000 to $400,000 or more. This translates to a typical cost per square foot of $200 to $400. Key factors influencing the final price include site preparation, foundation type, permitting fees in your specific city, material choices, and whether you opt for a prefabricated or custom-built unit. High-end finishes and complex designs will push costs toward the higher end. For a detailed breakdown of ADU costs and the value they add to your property, refer to our internal article Bay Area Kitchen, Bathroom, Home Remodeling, Additions & ADU | Gadi Construction. Professional planning and obtaining multiple contractor bids are essential for an accurate budget.

The cost comparison between adding an addition to your main house versus building a separate Accessory Dwelling Unit (ADU) depends heavily on specific project conditions. Generally, a well-planned ADU can be more cost-effective per square foot for creating a fully independent living space, as it often involves simpler foundations and may avoid complex integrations with existing home systems. However, a basic bump-out addition might have a lower absolute cost if it's small and doesn't require a new kitchen or bathroom. Key factors include local permit fees for ADUs, site accessibility, utility connections, and the finishes chosen. A major advantage of an ADU is its potential to generate rental income, which can significantly offset the investment compared to an addition that merely expands primary living space. Consulting with a contractor for site-specific estimates is crucial.

Sunnyvale's pre-approved ADU (Accessory Dwelling Unit) program streamlines the process for homeowners by offering pre-designed plans that comply with local zoning and building codes. This initiative reduces both the time and cost associated with custom design and plan review. To proceed, homeowners must select a pre-approved design from the city's catalog, ensure their property meets basic requirements like lot size and setbacks, and then submit for a building permit. This approach is ideal for adding rental income or housing for family members. It's crucial to verify current program details directly with the City of Sunnyvale's Planning Division, as specific guidelines and available designs can be updated. Engaging a licensed contractor familiar with local ADU rules is highly recommended for successful project execution.

Building an Accessory Dwelling Unit (ADU) in Sunnyvale is an excellent way to add value and functional space to your property. The city has streamlined its permitting process to encourage ADU development, aligning with state laws. Key considerations include adhering to Sunnyvale's specific zoning requirements for setbacks, height limits, and lot coverage, as well as utility connections and parking regulations. A successful project requires careful planning for design, budget, and construction management to create a comfortable, code-compliant living space. For a deeper dive into the process and benefits, we detail everything in our internal article, Bay Area Kitchen, Bathroom, Home Remodeling, Additions & ADU | Gadi Construction. Partnering with an experienced local builder ensures your ADU meets all regulations and maximizes your investment.

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