Our experts will help you every step of the way

Serving San Jose Bay Area

Custom ADU Construction to Maximize Your Space

With over 14 years of expertise in ADU construction, we guide you through every step—from design to construction to final walkthrough. Our personalized approach means your vision becomes reality, backed by the experience and attention to detail that San Jose homeowners trust.

Discuss your ADU project with us

Licensed  •  Bonded  •  Insured  •  CA Lic #955200 (General – B & C-10 Electrical)  •  BBB A+ Rated

Why Homeowners Are Choosing Accessory Dwelling Units (ADU)

An ADU is more than just extra space, it’s an investment in your property’s future.

An Accessory Dwelling Unit is a secondary housing unit on a single-family residential lot. Also known as a granny flat, in-law unit, or backyard cottage, ADUs are complete living spaces with their own kitchen, bathroom, and sleeping areas. They provide all the comforts of home in a compact, efficient design.

Why Build an ADU in San Jose?

Generate Rental Income

Turn your backyard into a steady revenue stream. ADUs can be rented out to qualified tenants with a minimum 30-day rental term, providing passive income that helps offset your mortgage or builds long-term wealth.

Increase Property Value

Adding an ADU significantly boosts your home’s market value. With smart design and quality construction, you’re making an investment that pays dividends when it’s time to sell.

Multi-Generational Living

Keep your family close while maintaining privacy. ADUs are perfect for elderly parents who want independence or adult children establishing their lives.

Affordable Construction

San Jose makes ADUs more accessible than ever. ADUs under 750 square feet are exempt from school impact fees and parkland fees, reducing your overall construction costs.

Watch a Walkthrough of a Recent Project

See how we transform spaces with high-quality, custom ADU construction

Stylish functional ADU & entertainment hub Sunnyvale, CA.

ADU Case Study in Sunnyvale, CA

Located in Sunnyvale, CA, this project aimed to create an ADU with unique Craftsman-style design features that would enhance the client’s backyard and serve as an entertainment area for guests.

Trust Built on Credentials

We take your project seriously—here’s what our credentials mean for your peace of mind.

Licensed

We hold active California contractor licenses (General B & C-10 Electrical), meaning we’ve met strict state requirements for experience, knowledge, and legal compliance. Our license number #955200 can be verified at CSLB.ca.gov.

Bonded

Bonding protects you financially if we fail to complete your project or don’t meet contractual obligations. It’s an additional layer of security that demonstrates our commitment to fulfilling our promises.

Insured

We carry comprehensive liability and workers’ compensation insurance, protecting you from financial responsibility if accidents or property damage occur during your project. Your home and investment are safeguarded.

CA Lic #955200 (General – B & C-10 Electrical)

Our dual licensing allows us to handle both general construction and electrical work in-house. This means better coordination, faster timelines, and expert electrical installation without relying on subcontractors.

BBB A+ Rated

Our A+ rating from the Better Business Bureau reflects our track record of quality work, ethical business practices, and customer satisfaction. It’s third-party validation of our commitment to excellence and integrity.

14+ Years of Experience

We are a collective of architects, engineers, and construction veterans with 14+ years of experience in our home town of San Jose, CA. 

Why Choose IT Construction?

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Portfolio

Our Recent Projects

We work closely with clients to align with their unique goals, needs and personality.

Testimonials

A Word From Our Community Of Homeowners And Investors

IT Construction believes in the power of past clients to showcase our capability to drive success. Browse through what our current and past clients have said about our partnerships.

Our ADU Construction Process

From free consultation to final walkthrough, we guide you through every step. We assess your property, create custom designs that comply with regulations, manage all permits and inspections, deliver expert construction on time and budget, and ensure every detail is perfect before you take the keys.

Talk With Our Team — No Strings Attached

Frequently Asked Questions

Common Questions About ADUs

What is the typical timeline for building an ADU?

The timeline varies based on the project type, but most ADUs take 4 to 8 months from design to completion, depending on permits, site conditions, and construction complexity.

Yes, ADU construction requires permits from your local city or county planning department. Our team handles the entire permitting process for you.

Costs vary based on size, design, and materials. On average, an ADU can cost between $100,000 to $300,000. We provide free consultations to estimate your project’s cost.

Yes! Many homeowners use ADUs for rental income. Check your local zoning laws for specific regulations on renting ADUs.

Yes, San Jose requires the property owner to occupy either the primary residence or the ADU as their primary residence.

CONTACT

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No obligation. Free quote and expert  advice.

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IT Construction is a collective of architects, engineers, and construction veterans with over 14 years of experience. We take the stress out of building your dream home, offering you a more streamlined experience without you breaking a sweat.

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We’re driven by our passion for serving people from all walks of life and our attention to the details that make your newly built house a home.