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Custom ADU Builder

California

ADU Builders, ADU Designers

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Website

https://customadubuilder.com/

Custom ADU Builder is a Southern California-based accessory dwelling unit construction company specializing in detached ADUs, attached ADUs, junior ADUs (JADUs), and garage conversions. Led by Dennis Robinson, the company focuses exclusively on ADU projects throughout Los Angeles and Orange County, helping homeowners maximize property value, create additional living space, and generate rental income. Their specialized approach allows them to streamline construction, reduce costs, and complete projects efficiently while maintaining high standards of craftsmanship.

Experienced ADU Specialists

With construction crews and subcontractors averaging more than 25 years of industry experience, Custom ADU Builder provides homeowners with a comprehensive, one-stop solution for ADU development. Their team consists of dedicated tradespeople across multiple construction disciplines, allowing projects to move forward without many of the delays often associated with smaller construction companies. This streamlined workforce enables them to complete most ADU projects within four to five months after approved plans are obtained.

Complete ADU Design & Construction Services

Custom ADU Builder manages every phase of the ADU development process, from initial planning through final construction and rental preparation.

Services Include:

Detached ADU construction
Attached ADU construction
Junior ADUs (JADUs)
Garage conversions
3D modeling and site planning
Architectural design and engineering
Permit processing and city approvals
Foundation and framing work
Interior finishing and remodeling
Rental property preparation and guidance

Their design team works to maximize functionality and privacy while optimizing each property’s available space for long-term usability and return on investment.

A Focus on Cost Efficiency & ROI

Because ADUs are the company’s primary focus, Custom ADU Builder has developed systems that help reduce unexpected costs and construction inefficiencies. Their experience as ADU owners and real estate investors provides valuable insight into which upgrades offer the greatest return on investment and where homeowners can save money without sacrificing quality.

The team regularly assists clients with planning decisions, material selections, and rental strategies to help maximize the financial benefits of an ADU project. Whether the goal is housing family members, creating a guest house, or generating rental income, they help homeowners make informed decisions throughout the process.

Support Beyond Construction

Custom ADU Builder’s involvement often extends beyond project completion. For homeowners entering the rental market for the first time, the company offers guidance on preparing a property for tenants, including basic staging recommendations, professional photography assistance, and rental pricing insights. Their firsthand experience with rental property ownership allows them to provide practical advice for maximizing occupancy and rental returns.

Why Homeowners Choose Custom ADU Builder

Specialized focus on ADU construction
More than 25 years of average trade experience
Full-service design, permitting, and construction
Expertise in detached, attached, and garage conversion ADUs
Streamlined project timelines
Knowledge of Los Angeles and Orange County regulations
Rental property and ROI guidance
Large team of dedicated construction professionals
Commitment to quality workmanship and customer satisfaction

Custom ADU Builder combines specialized ADU expertise, experienced construction teams, and end-to-end project management to help homeowners successfully add functional, valuable living space to their properties throughout Southern California.

Business Hours

Monday: 8:00 AM – 5:00 PM
Tuesday: 8:00 AM – 5:00 PM
Wednesday: 8:00 AM – 5:00 PM
Thursday: 8:00 AM – 5:00 PM
Friday: 8:00 AM – 5:00 PM
Saturday: 8:00 AM – 5:00 PM
Sunday: 8:00 AM – 5:00 PM

Service Area

Southern California

Facebook

https://www.facebook.com/customadubuilder/

Instagram

https://www.instagram.com/customadubuilder/

113 West Santa Fe Avenue, Fullerton, CA 92832

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