Business Details
41 Years
experience
Your Trusted Custom Home Builder in San Jose
Fernandez Designs & Builders has been transforming residential spaces in the Silicon Valley since 1985. Our full-service approach combines in-house design, structural engineering, and construction expertise to deliver custom homes, additions, and large-scale remodels with precision and artistry. With over 35 years of experience, we specialize in translating client visions into functional, aesthetically striking realities while maintaining rigorous quality standards. Our team of seasoned professionals prioritizes client satisfaction through transparent communication, innovative problem-solving, and meticulous attention to detail. We are committed to ethical business practices, working exclusively with vetted subcontractors and suppliers who meet our exacting craftsmanship criteria.Our California State License #B482703 and industry-recognized COTY Award underscore our dedication to excellence. From concept to completion, we provide a seamless, stress-free building experience backed by a limited lifetime labor warranty. Our proprietary project management system ensures clients maintain full visibility over timelines, budgets, and progress updates throughout every phase. As a locally owned family business, we reinvest in our community while serving clients across Livermore, Los Gatos, and the broader South Bay region. Our legacy of award-winning projects demonstrates our unwavering commitment to pushing design boundaries while honoring client needs.
Services
Custom Home Design
Home Additions
Complete Home Remodeling
Accessory Dwelling Units
Design & Construction Services
Details
- Year established: 1985
Highlights and features
- 35+ years of custom home building expertise
- In-house design and engineering capabilities
- Award-winning craftsmanship recognized by COTY
- Lifetime labor warranty on all projects
- Locally owned with Silicon Valley expertise
Associations and certifications
- National Association of the Remodeling Industry (NARI)
- COTY Award (Contractor of the Year)
What people say
Transformation of our house
Design that far surpassed expectations
Completed on budget
Professional staff
Personalized approach
Services
Custom Home Design
Our in-house design team collaborates directly with clients to create fully customized architectural plans. We integrate structural engineering, energy calculations, and aesthetic preferences to develop blueprints that balance functionality with artistic vision. Every design undergoes rigorous review to ensure buildability and compliance with local regulations.
Home Additions
We specialize in second-story additions, kitchen expansions, and bathroom additions that enhance home functionality. Our process includes structural assessment, permit acquisition, and seamless integration with existing architecture. We maintain living spaces' usability during construction while delivering durable, aesthetically cohesive additions.
Complete Home Remodeling
Our comprehensive remodeling services transform entire homes through coordinated updates to layouts, systems, and finishes. We handle everything from foundation work to interior design, using premium materials and modern techniques to achieve dramatic improvements in home value and livability without requiring new construction.
Accessory Dwelling Units
We design and build granny flats, mother-in-law houses, and backyard cottages that maximize property utility. Our ADUs comply with California's latest regulations while incorporating smart space planning, energy-efficient systems, and architectural harmony with primary residences.
Design & Construction Services
From concept to completion, we provide end-to-end management of custom homes and major renovations. Our services include geotechnical reporting, permit processing, material sourcing, and coordination of specialized subcontractors, ensuring cohesive execution of every project element under a single point of accountability.
People
Doug Fernandez
Founder & President
Established the company in 1985 after emigrating from Cuba. Holds architecture credentials from West Valley College. Combines artistic vision with technical expertise to lead all major projects while maintaining active NARI membership and industry award recognition.
Spenser Vieira
Chief Designer
Responsible for all design documentation since 1989. Graduated from UC Berkeley with architecture degree. Specializes in translating client concepts into detailed construction plans while ensuring structural integrity and code compliance through precise field measurements.
Rosemary Rerich
Office Manager
Manages financial operations with 30+ years accounting experience. Oversees project organization and client communications. Brings 15 years logistics expertise to ensure smooth project execution and timely client updates.
Sophie Fernandez
Office Greeter
Handles client welcome protocols with proven track record of creating positive first impressions. Maintains consistent client engagement through organized visitor management and initial inquiry processing.
Questions
What types of home projects do you specialize in?
We focus on custom home construction, second-story additions, complete home remodels, and accessory dwelling units across Silicon Valley.
How do you ensure project transparency?
Our Buildertrend system provides real-time budget tracking, change order processing, and project calendar updates accessible 24/7 from any device.
What warranty protections do you offer?
We provide a limited lifetime warranty covering all labor performed, ensuring free repairs for any workmanship failures post-completion.
Are you licensed for California construction?
Yes, we hold California State Contractor License #B482703 with full insurance coverage for all projects.
How do you handle design changes during projects?
Our digital platform enables instant change order creation and approval from any location at any time without requiring in-person meetings.
