Custom ADU Construction and Room Additions
Expand your living space with a custom ADU or room addition designed to meet your family's needs and complement your existing home. Radvand Construction provides comprehensive design-build services, including planning, permitting, construction, and project management. Our experienced team helps navigate city permit requirements while delivering quality craftsmanship and functional spaces built for long-term value throughout the Bay Area.


Expand Your Home with Expert ADU and Room Addition Services
Radvand Construction provides high-quality ADU and room construction services designed to maximize your property's functionality, value, and long-term potential. Whether you need an accessory dwelling unit for rental income, multigenerational living, guests, or additional personal space, our team creates custom solutions tailored to your property, goals, and lifestyle.
From initial planning and design through permitting and construction, we manage every phase of your ADU project with clear communication, careful coordination, and exceptional craftsmanship.
ADUs & Room Additions Designed with You in Mind
Accessory Dwelling Units (ADUs) have become one of the most valuable additions for Bay Area homeowners. Our team designs and builds custom ADUs that integrate seamlessly with your existing home while meeting all local zoning and building requirements. Our ADU construction and room addition services include:
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Detached ADUs
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Junior ADUs (JASUs)
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Attached ADUs
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Multi-Purpose Backyard Units
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Garage Conversions
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Rental Ready ADUs
Comprehensive Design-Build & Construction Services
ADU and home addition regulations can be complex, but Radvand Construction helps simplify the process. Our team provides comprehensive design coordination, permitting assistance, and city approval management throughout the Bay Area, helping your project move forward efficiently while meeting applicable building codes and local requirements.
Radvand Construction works closely with architects, engineers, and local planning departments to help ensure your ADU or room addition meets zoning, setback, utility, and California ADU requirements. Our coordinated approach helps streamline the permitting process, minimize delays, and keep your project moving efficiently from planning through construction.

Craftsmanship That Defines Quality
Radvand Construction combines premium materials, modern building techniques, and skilled craftsmanship to create ADUs and home additions that are beautiful, durable, energy-efficient, and built for long-term performance. Every detail is thoughtfully executed to enhance comfort while complementing the architecture of your existing home.
Whether you are creating additional space for family, generating rental income, or increasing your property's value, our custom ADUs and additions are designed to meet your goals and deliver lasting results.
Why Homeowners Choose Radvand Construction
High-End General Remodeling Specialists
Licensed & Insured
Bay Area Residential Construction Experts
Personalized Service & Transparent Communication
Exceptional Craftsmanship & Attention to Detail
We don't just build rooms, we create high-quality living spaces that add lasting value.


























