ADU Construction & Garage Conversion Services in Corona, CA

Licensed ADU contractors building accessory dwelling units, garage conversions, and backyard homes across the Inland Empire.

From design support to final construction, SSI Construction Inc. helps homeowners maximize their property with high-quality ADU builds that meet California regulations and local zoning requirements.

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500+

Completed Construction & Renovation Projects

15+ Years

Combined Industry Experience

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Residential & Investment Projects
ADU & Property Expansion Specialists

Build an ADU That Adds Value to Your Property

At SSI Construction Inc. we specialize in high-quality Accessory Dwelling Units (ADU's), garage conversions, and backyards homes across the Inland Empire.

From initial design guidance to final construction, our tema handles every step–ensuring your project meets California regulations, local zoning requirements, and your long-term investment goals.

Whether you're planning a rental unit, guest house, or private workspace, we help bring your ADU project to life efficiently and professionally.

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Our ADU Services Include:



Detached ADU Construction
Ground-up construction of standalone backyard units designed for privacy, rental income, or extended family use.

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Garage Conversions
Convert your space into a private unit for family, guests, or rental income

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Attached ADUs
Expand your current home with an attached unit that integrates seamlessly with your existing structure.

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Design Support & Planning
Guidance on layout, space optimization, and functionality to meet your goals and property conditions.

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Compliance & Construction
We ensure all work meets California building codes, zoning requirements, and local regulations in Corona and surrounding areas.

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Full Project Execution
From initial planning to final construction, our team handles every phase of your ADU build.

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Our ADU Construction Process

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1

Initial Consultation

We evaluate your property, goals, and ADU feasibility.

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2

Planning & Project Scope

We define layout, structure, and construction requirements.

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3

Construction Phase

Our team executes the build with attention to detail and compliance.

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4

Final Walkthrough

We review the completed project and ensure everything meets expectations.

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Why Choose SSI Construction for Your ADU

  • Licensed & Insured Contractor

  • Experience with Residential Property Expansions

  • Local Knowledge of Corona & Inland Empire Regulations

  • Clear Communication & Transparent Estimates

  • Efficient Construction Timelines

Building an ADU requires careful planning, compliance, and execution. SSI Construction Inc. combines experience and local expertise to deliver ADU projects that maximize property value while meeting all necessary building requirements.

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Serving Corona and Surrounding Communities

SSI Construction Inc. proudly provides general construction and renovation services in:

  • Orange County

  • Riverside, California

  • Temecula, California

  • Lake Elsinore, California

  • Menifee, California

  • Eastvale, California

If you are searching for a reliable general contractor near Corona, our team is ready to assist you.

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Request an Estimate

Start Your ADU Project Today

Contact SSI Construction Inc. to discuss your ADU project and get a free estimate for your property in Corona and the Inland Empire.

Frequently Asked Questions About ADU Construction

  • An ADU (Accessory Dwelling Unit) is a secondary housing unit built on the same property as a primary residence.

  • In most cases, yes. However, requirements depend on zoning regulations, lot size, and local building codes.

  • Timelines vary depending on project size, but most ADU projects take several months from planning to completion.

  • Yes, ADUs can significantly increase property value and create additional rental income opportunities.

  • We assist with planning and construction while ensuring the project aligns with local requirements.

More FAQs