Full House Remodeling and Home Addition on Williams Rd, San Jose, CA 95129

Complete house remodeling and addition on Williams Road in San Jose featuring full structural demolition, new framing, plumbing installation, and drywall completion. A comprehensive renovation transforming the home's interior layout and expanding its footprint.

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This full house remodeling and home addition on Williams Rd in San Jose, CA 95129 combines two of the most ambitious project types into a single coordinated build — and required the kind of sequencing discipline that turns potential chaos into a finished home delivered on schedule. Full house remodels touch every system; pairing one with a structural addition multiplies the coordination required across permitting, sequencing, and trade scheduling.

San Jose's permitting for combined remodel and addition projects involves both an addition permit (with structural engineering, foundation work, and Title 24 compliance for the new envelope) and remodel permits for the work happening inside the existing footprint. Inspector visits get sequenced carefully so that work in the existing home isn't blocked by addition framing schedules.

The Williams Rd scope spanned the full breadth of residential construction: foundation work for the addition, structural framing tied into the existing house, full electrical and plumbing repipe where conditions warranted, HVAC redesign for the new total square footage, kitchen and bath remodeling within the existing footprint, exterior weatherization across the combined envelope, and interior finishes throughout. Title 24 compliance was handled through CHEERS-registered documentation.

Browse the photo gallery below to see the demolition, framing, mechanical rough-in, and finished spaces of this combined San Jose project.

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Why 9Builders?

Every project reflects our dedication to quality, transparency, and client satisfaction.

01

Quality Craftsmanship

Premium materials, skilled crews, and meticulous attention to detail on every build.

02

Full-Service Approach

Design, permits, construction, and inspection — all managed under one roof.

03

Bay Area Expertise

Deep knowledge of local codes, zoning, and neighborhood requirements across the Bay Area.

Frequently Asked Questions

Timelines vary by project scope. A typical ADU takes 8-14 months, a home remodel 3-6 months, and smaller projects like fence replacement or tile work can be completed in 1-4 weeks.
Yes. 9Builders manages the entire permitting process and coordinates all required inspections with the city, so you don't have to.
We serve the entire Bay Area including San Jose, Santa Clara, Sunnyvale, Campbell, Los Gatos, Saratoga, Palo Alto, Mountain View, Cupertino, Fremont, and surrounding cities.
Absolutely! Visit our portfolio page to browse all completed projects, or contact us to discuss your own project.
We begin with a free consultation to understand your goals and budget. From there, we provide a detailed estimate, handle design and permits, and manage construction through to final walkthrough.
Yes. All 9Builders projects come with a workmanship warranty. We stand behind the quality of our construction and are committed to your long-term satisfaction.

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