Custom ADU Design & Build
Complete ADU design and construction services tailored to your space, lifestyle, and property layout. Floor plans, materials, and features are planned for comfort, privacy, and long-term use.
J & J Development Remodeling INC
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Phone Number
(661) 675-6520 -
Email
joseph@jjdevelopmentinc.com -
Work Hours
8:00 AM - 6:00 PM
ADU Construction
About Us
ADU Construction Services in California
Accessory Dwelling Units (ADUs) have become one of the most practical ways to expand living space, increase property value, and create flexible housing options for family members or rental income. J & J Development Remodeling INC., a trusted ADU construction company in California, designs and builds custom ADUs that blend comfort, functionality, and long-term durability. Whether you need a backyard unit, a guest house, a garage conversion or a full in-law suite, experienced ADU builders and designers help bring your vision to life with proper planning and quality craftsmanship.
A well-built ADU isn’t just an extra room; it’s a fully equipped, private living space that adds real value to your property.
Services
ADU Construction Services
Garage Conversion ADUs
Garage conversion ADUs transform unused or outdated garages into modern, self-contained living spaces. These units are ideal for rental income, extended family, or private guest suites.
Detached Backyard ADUs
Backyard ADUs offer a private, separate living space built on your property. Perfect as a rental unit, home office, studio, or housing for relatives who want independence and proximity.
Attached ADUs & Home Extensions
Attached ADUs extend your home by adding a connected living unit with its own entrance, bathroom, and kitchen area. These are great for multi-generational living or long-term guests.
In-Law Suites & Guest Houses
In-law suites and guest houses provide a comfortable, private space for parents, relatives, or visiting guests. Designed for accessibility, convenience, and a homelike feel.
Basement ADU Conversion
Basement ADUs utilise existing space to create a fully functional living area with proper egress, ventilation, plumbing, and layout upgrades.
ADU Kitchen & Bathroom Construction
ADU kitchens and bathrooms are built with space-efficient layouts, durable materials, and modern features to ensure comfort, convenience, and long-lasting performance.
ADU Permits & City Compliance
ADU contractors handle California building permits, zoning checks, site requirements, and compliance with local ADU regulations to ensure a smooth, stress-free approval process.
Utility Connections & Upgrades
Plumbing, electrical, HVAC, and drainage systems are installed or upgraded to meet ADU requirements, ensuring safe and reliable performance throughout the unit.
ADU Foundation, Framing & Structural Work
Strong foundation, framing, and structural construction ensure your ADU is built to last. Stability, safety, and proper engineering are top priorities from start to finish.
Why Choose Us
Why Homeowners Choose Our ADU Construction Services
ADUs Built for Real Living
ADUs are designed to feel like complete homes—comfortable, private and functional—not just extra rooms added behind the house.
Experienced ADU Builders & Designers
ADU experts guide homeowners through design, planning, and construction to ensure a smooth, predictable building experience.
Clear Communication & Transparent Planning
Floor plans, budgets, timelines, and requirements are explained clearly so you always know what’s happening.
ADU Construction Process
Step 1
Consultation & Site Evaluation
The property is assessed to determine the best ADU layout, location, and design options based on space and local requirements.
Step 2
ADU Design, Planning & Permits
Designs, materials, and floor plans are created. Permit paperwork and city compliance are handled to streamline approval.
Step 3
Construction & Full Buildout
Foundation work, framing, utilities, interior finishing, and exterior detailing are completed with craftsmanship and attention to detail.
Build Your ADU With the Trusted ADU Contractors in California
Whether you want a guest house, rental unit, studio, or in-law suite, a professionally built ADU adds comfort, privacy, and long-term value to your property.
Contact J & J Development Remodeling INC., your trusted California ADU construction experts, today.
Frequently Asked Questions
Timelines vary, but most ADUs take a few months from planning to completion.
Yes. All ADUs require permits, inspections, and city compliance, which are handled for you.
In most cases, ADUs can be used as rental units depending on city regulations.
Yes. Garage conversions are often more affordable because the existing structure is used.
Absolutely. ADUs significantly boost resale value and rental earning potential.