Custom ADU design and construction in East Foothills, helping homeowners create valuable living space, generate rental income, and increase property value through a seamless design-build process.
Enhance your property with a custom-built ADU—designed, permitted, and built by trusted local experts in East Palo Alto and the Bay Area.
East Foothills homeowners are increasingly turning to ADUs as a practical way to add living space, create rental income, and increase property value without relocating. At King David Home Builders, we design and build custom ADUs that complement your existing home while maximizing functionality and long term return on investment.
Whether you’re planning a detached backyard ADU, garage conversion, guest house, or multigenerational living space, our team manages every stage of the project from design and permitting through construction and final inspection. We create high quality, code compliant ADUs tailored to the unique lot sizes, topography, and residential character found throughout East Foothills.
A successful ADU project starts with proper planning and experienced project management. Our design-build process provides homeowners with a streamlined experience from initial consultation through final completion, ensuring transparency, efficiency, and quality at every stage.






Building an ADU in East Foothills presents unique opportunities for homeowners looking to maximize their property’s potential. With larger residential lots and spacious backyards common throughout the area, many properties are well suited for detached ADUs, guest houses, and multigenerational living spaces. However, successful ADU construction requires careful planning, site evaluation, and compliance with local regulations.
Our team helps homeowners navigate every aspect of the process, including:
✔ Santa Clara County and local ADU zoning requirements
✔ Detached ADU, attached ADU, and garage conversion eligibility
✔ Property setbacks, height restrictions, and lot coverage requirements
✔ Utility connections, sewer, water, and electrical planning
✔ Site grading and hillside construction considerations
✔ California Title 24 energy efficiency compliance
✔ Architectural design and permit approval coordination
From the initial feasibility assessment to final construction, We manage the entire process to ensure your ADU is designed efficiently, approved smoothly, and built to the highest standards.
The cost of building an ADU depends on factors such as size, design complexity, site conditions, utility connections, and finish selections. During your consultation, we evaluate your property and provide a detailed estimate tailored to your specific project goals.
Most ADU projects involve design, permitting, and construction phases. While timelines vary depending on project scope and approval requirements, our design-build process helps streamline communication and reduce unnecessary delays.
Many East Foothills properties are well suited for detached ADUs due to their larger lot sizes and residential layouts. Our team evaluates your property’s zoning, setbacks, utility access, and site conditions to determine the best ADU option.
Yes. A professionally designed and constructed ADU can significantly increase property value while providing additional living space, rental income opportunities, or flexible accommodations for family members.
Yes. King David Home Builders manages the entire permitting process, including site planning, architectural drawings, engineering coordination, and permit submissions, helping homeowners navigate local requirements with confidence.
We offer a complete design-build approach that includes planning, permitting, design, construction, and project management under one roof. Our focus on quality craftsmanship, transparent communication, and personalized service helps ensure a smooth and successful ADU building experience.
Contact King David Home Builders today to discuss your ADU project and receive expert guidance from a team experienced in designing and building high quality accessory dwelling units throughout East Foothills and Santa Clara County.