ADU Contractor · San Jose, CA

San Jose ADU Solutions: Maximize Your Property

Unlock your San Jose property's full potential with a custom Accessory Dwelling Unit, designed and built for local living.

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San Jose ADU Solutions
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Licensed & Insured
For Your Protection
Local San Jose Focus
Deep Community Roots
Free Site Consultations
Get Started Today
Permit Navigation
We Handle The Paperwork
ADU Contractor Professionals

Your Local ADU Partner in San Jose

Building an Accessory Dwelling Unit in San Jose requires a deep understanding of local ordinances, from the city's specific zoning laws to the distinct soil conditions found across neighborhoods like Willow Glen or Almaden Valley. We've navigated countless projects through the San Jose planning department, ensuring every ADU meets structural integrity requirements and local aesthetic preferences. Our approach starts with listening to your vision, then translating it into a practical, beautiful design that complements your existing home and the San Jose climate. We handle everything from initial design and permitting to final construction, ensuring a smooth process. You get a fully functional, high-quality ADU that adds value and utility to your property, built by people who know San Jose.

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Our ADU Contractor Services

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Attached ADU
01

Attached ADU

An attached ADU integrates directly with your existing San Jose home, providing additional living space by converting or expanding a portion of the main structure. This solution can add significant property value and living flexibility, often with a quicker permitting timeline compared to detached units.

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Detached ADU
02

Detached ADU

A detached ADU is a separate, independent structure built on your property, offering a complete living space with its own kitchen, bathroom, and entrance. This option provides maximum privacy and flexibility, making it ideal for rental income or multi-generational living in San Jose.

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Garage Conversion
03

Garage Conversion

A garage conversion transforms your existing garage into a fully functional living space, such as an Accessory Dwelling Unit (ADU) or an expanded part of your main home. This process typically includes structural modifications, utility hookups, and interior finishing to meet residential standards.

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ADU Permitting
04

ADU Permitting

ADU Permitting in San Jose involves preparing and submitting all necessary architectural plans, structural engineering documents, and site surveys to the City of San Jose Planning Department for approval. We handle the entire application process, securing the permits required to legally build your Accessory Dwelling Unit.

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ADU Design
05

ADU Design

ADU design involves creating detailed architectural plans, floor layouts, and exterior elevations for your Accessory Dwelling Unit, ensuring it meets all local zoning and building codes. This foundational step provides a clear vision for your project and is essential for successful permitting and construction in San Jose.

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ADU Engineering
06

ADU Engineering

ADU engineering involves creating the structural, civil, and MEP plans required for safe, compliant, and efficient accessory dwelling units. Proper engineering ensures your ADU meets San Jose's specific building codes and stands strong for decades.

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ADU Financing
07

ADU Financing

ADU financing involves securing funds to cover the design, permitting, and construction costs of an Accessory Dwelling Unit. This service helps San Jose homeowners navigate loan options to make their ADU project financially viable.

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ADU Construction Management
08

ADU Construction Management

ADU Construction Management in San Jose oversees your entire ADU project, coordinating all trades, schedules, and budgets from start to finish. This service ensures your build progresses smoothly, on time, and within the agreed financial plan, avoiding common construction pitfalls.

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Junior ADU (JADU)
09

Junior ADU (JADU)

A Junior ADU (JADU) involves converting an existing bedroom or space within your primary home into a separate living unit, typically including a kitchenette and bathroom access. This creates an affordable, compact rental opportunity or flexible living space without expanding your home's footprint.

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ADU Site Assessment
10

ADU Site Assessment

Our ADU site assessment determines the feasibility and best placement for an accessory dwelling unit on your San Jose property, evaluating zoning, utilities, and site conditions. This initial step provides a clear roadmap, saving you time and preventing costly surprises later in the ADU development process.

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San Jose's Local ADU Contractor Experts

San Jose ADU Solutions is proud to serve San Jose, CA and the surrounding communities. Our reputation is built on honest work, clear communication, and results that hold up over time.

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Frequently Asked Questions

The typical costs for building an ADU in San Jose generally range from $150,000 to $400,000, depending on size, finishes, and site-specific challenges. This range includes design, permitting, and construction, but can fluctuate based on factors like foundation work needed for San Jose's varied soil types. A detached 600 sq ft ADU will naturally cost less than a larger 1200 sq ft unit with high-end appliances. We provide detailed estimates after a site visit to account for all variables unique to your property.
Building an ADU in San Jose typically takes 8 to 18 months from initial design to final completion. The permitting phase alone, navigating San Jose's planning department, can often take 3-6 months. Once permits are secured, construction usually proceeds for 5-12 months, depending on the ADU's complexity and weather conditions. We work efficiently to keep projects on schedule while maintaining quality standards.
San Jose's zoning requirements for ADUs allow for one ADU and one JADU (Junior Accessory Dwelling Unit) on most single-family residential lots. The maximum size for a detached ADU is generally 1,200 square feet, or up to 50% of the existing primary dwelling's floor area, whichever is less, with some exceptions for larger lots. Setbacks are typically 4 feet from side and rear property lines, and parking requirements are often waived if you are within a half-mile of public transit. We stay current with all city ordinances to ensure your project is fully compliant.
Yes, you can often build an ADU even if your San Jose property has limited space, thanks to flexible state and local regulations. Options include converting an existing garage, which often has a smaller footprint and simpler permitting, or building a compact detached unit. San Jose's 4-foot setback rules are quite accommodating for smaller lots. We specialize in creative designs that maximize usable space while adhering to all setback and lot coverage requirements, even on tighter parcels.
Adding an ADU to your San Jose home offers several significant benefits, including increased property value and potential rental income in a high-demand market. It provides flexible living space for family members, a home office, or a guest suite, adapting to your evolving needs. With San Jose's strong rental market, an ADU can generate substantial passive income, helping offset mortgage costs. It's a smart investment that enhances your property's utility and financial standing in the Bay Area.

Proudly Serving San Jose and the Surrounding Area

From San Jose to the surrounding communities, we bring the same level of care and craftsmanship to every job — whether it's a quick repair or a full project.

Start Your San Jose ADU Project Today

Connect with us for a free site consultation and a clear path forward for your property.

Get Your Free Quote
Licensed & Insured
For Your Protection
Local San Jose Focus
Deep Community Roots
Free Site Consultations
Get Started Today
Permit Navigation
We Handle The Paperwork