Eunoia Builders Inc.
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    • Home
    • Portfolio
    • Our Story
    • Get in Touch
    • Service Areas
      • Sunnyvale CA
      • Palo Alto, CA
      • Los Gatos CA
      • Los Altos CA
      • Cupertino CA
Eunoia Builders Inc.
  • Home
  • Portfolio
  • Our Story
  • Get in Touch
  • Service Areas
    • Sunnyvale CA
    • Palo Alto, CA
    • Los Gatos CA
    • Los Altos CA
    • Cupertino CA

Home Addition Construction in Los Gatos, CA

If you love your home but need more space, there’s no need to leave the neighborhood. Our addition construction services in Los Gatos, CA, provide homeowners with custom-designed living spaces that add comfort, function, and long-term value. Whether you need an extra bedroom, an upstairs suite, or a fully converted garage, we help you create the home you’ve always envisioned—without starting from scratch.


From the initial design consultation to final walk-through, our team is known for professional project management, local code expertise, and additions that blend perfectly with your home’s architecture.

Designed to Match Your Life—and Your Home

In a community like Los Gatos, design continuity is key. That’s why every addition we build is carefully crafted to feel like a natural extension of your existing space—not an afterthought. Whether you’re working with limited square footage or planning a major expansion, we’ll create a solution tailored to your family’s needs.

Room Additions

Garage Conversions

Garage Conversions

From guest rooms and home offices to expanded living rooms or nurseries, we build single-room additions that integrate seamlessly into your home’s footprint. We match finishes, rooflines, and layout flow for a cohesive result that enhances both form and function.

Garage Conversions

Garage Conversions

Garage Conversions

Turn your unused garage into valuable livable space. Our team converts garages into home gyms, in-law suites, studios, or income-generating units—fully outfitted with plumbing, electrical, and insulation. All work is done to code and energy compliant with Los Gatos building standards.

Second Story Additions

Second Story Additions

Second Story Additions

Need to double your square footage without losing yard space? Our second-story additions are engineered for safety, designed for harmony, and built for everyday living. Whether you’re adding new bedrooms, a master suite, or a private upstairs retreat, we make vertical expansions smooth and efficient.

ADUs & Guest Houses

Second Story Additions

Second Story Additions

Accessory Dwelling Units (ADUs) are increasingly popular across Santa Clara County, and Los Gatos is no exception. We design and construct detached or attached ADUs that meet California code and provide comfortable, fully functioning living spaces—perfect for guests, rentals, or multigenerational families.

A Process Built Around You

We understand that every project is personal. That’s why our additional construction process prioritizes clear communication, reliable timelines, and expert handling of all the moving parts.


1. On-Site Consultation

We start with a walk-through of your property to discuss your goals, evaluate layout options, and determine the best use of space.


2. Design & Planning

Our team creates architectural plans that reflect your style, functional needs, and home’s existing structure. We consider everything from layout to natural light and ventilation.


3. Permits & Compliance

We handle all city approvals, permits, and Title 24 energy requirements, ensuring your project is fully compliant with Los Gatos building codes and ordinances.


4. Construction & Oversight

With licensed contractors, clean crews, and a dedicated project manager, we handle every phase of construction—framing, roofing, finishes, and inspections—on time and on budget.


5. Walk-Through & Final Touches

Before project completion, we walk through the entire space with you to ensure every detail meets our quality standards and your expectations.

Why Los Gatos Homeowners Trust Us

Los Gatos homes are known for charm, quality, and architectural integrity—and so is our work. We take pride in building additions that not only add space but also preserve and enhance the unique character of your home.


Homeowners choose us for:


✅ Local experience with Los Gatos zoning and permitting

✅ Custom design tailored to the neighborhood aesthetic

✅ Transparent pricing and consistent communication

✅ Expert handling of structural engineering and layout integration

✅ Fully licensed, bonded, and insured crews

We’re not just building rooms—we’re creating long-term living value.

Serving Every Corner of Los Gatos

From the Almond Grove and Glen Ridge neighborhoods to the foothills of Monte Sereno, we’ve helped Los Gatos homeowners expand with confidence. We understand the style and structure of homes throughout the area, and we deliver quality that meets local expectations.

Let’s Build the Space You’ve Been Imagining

If you're ready to expand your home in Los Gatos, we’re here to help. Whether it’s a single-room addition, a second story, or a complete garage transformation, we’ll guide you through every step with care and craftsmanship.


Schedule your consultation today and discover how a custom addition can transform your home—without leaving the neighborhood you love.

CALL US

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