ADU Builders in Fremont, CA – Custom ADU Construction Experts

Build a custom ADU in Fremont, CA with King David Home Builders. We handle design, permits, and construction to create code-compliant ADUs that add rental income, expand living space, and increase long-term property value.

Custom ADU Builders in Santa Clara, California

Over 30 years of experience, 100+ ADUs built, and fully licensed, bonded, and insured.

Build a High-Value ADU with Trusted Experts in Fremont

Looking to add rental income, expand living space, or build a private unit for family?

King David Home Builders is a trusted ADU builder in Fremont, specializing in custom Accessory Dwelling Units (ADUs) that meet California regulations, maximize property value, and are built to last.

From design and permits to construction and final inspection, we handle everything.

ADU Builders in Freemont
Best ADU Building Services in Fremont

Santa Clara Projects

Take a look at some of our recently completed custom homes across Santa Clara and the surrounding Bay Area. Each project showcases our commitment to high-end design, quality materials, and expert craftsmanship.

best ADU in Fremont
ADU builders near me in Milpitas

Our ADU Construction Services in Fremont

Every property in Freemont is different and your ADU should be too. We design and build:

  • Detached ADUs: Perfect for rental income or independent living. Detached units provide privacy, noise separation, and maximum flexibility.
  • Garage Conversion ADUs: Turn an underused garage into a modern living space without expanding your footprint ideal for compact lots.
  • Attached ADUs: Seamlessly integrated into your existing home with matching architecture and flow.
  • Junior ADUs (JADUs): A cost-effective solution for multi-generational households, fully compliant with Milpitas requirements.

Our ADU Building Process in Milpitas

Site Evaluation & Feasibility Check
We assess your property to determine what type of ADU can legally and practically be built.
Design & Planning
Choose from custom or pre-designed floor plans, and collaborate with our architects and designers.
Permitting & Approvals
We handle all paperwork and work with the City of Santa Clara to secure the permits you need.
Construction Begins
Our experienced builders manage every detail, ensuring quality, compliance, and timelines are met.
Final Walkthrough & Move-In
We finish with a full walkthrough to ensure everything meets your standards—then hand over the keys.
Best ADU home builders near me in Fremont

ADU Benefits for Fremont Homeowners

  • Generate passive rental income
  • Increase property value significantly
  • Create space for aging parents or adult children
  • Avoid selling or relocating
  • Build under California ADU-friendly laws

ADUs are one of the fastest-growing real estate investments in Fremont.

Frequently Asked Questions

The cost of building an ADU in Fremont depends on the ADU type, size, materials, and site conditions. Garage conversions are typically more affordable, while detached ADUs require a higher investment. We provide a free, detailed estimate after evaluating your property.

Most ADU projects take 4 to 9 months, including design, permits, and construction. Timelines vary based on city approvals and project complexity.

Yes. King David Home Builders handles all ADU permits, zoning reviews, and inspections with the City of Fremont to ensure full compliance with California ADU laws.

We build detached ADUs, attached ADUs, garage conversion ADUs, and Junior ADUs (JADUs) all custom-designed for Fremont properties.

Get a Free Consultation with ADU Builders in Freemont

Ready to unlock the full potential of your property? As trusted ADU builders in Freemont, we deliver high-end accessory dwellings that blend design, value, and practicality.

Schedule a free consultation today and see how we can bring your ADU vision to life on time, on budget, and with exceptional care.

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