Whether your family is growing, your lifestyle is changing, or you’re simply ready for more space, Royalty Builders is here to help. We specialize in custom home additions in Gilroy that enhance comfort, functionality, and property value. From spacious kitchens and elegant bathrooms to sun-filled living areas and full second-story expansions, we create additions that blend perfectly with your existing home—inside and out.

With years of experience building in Gilroy and the surrounding South Bay area, we understand the local building codes, permitting processes, and the unique charm of Gilroy’s residential neighborhoods.

Custom Kitchen Additions in Gilroy

Looking to expand or upgrade your kitchen? Our kitchen addition services in Gilroy are designed for homeowners who want more room to cook, gather, and entertain. We specialize in open-concept layouts, custom cabinetry, durable countertops, upgraded appliances, and smart storage solutions. Whether you want a gourmet cooking space or a larger family kitchen, our team will bring your vision to life with both beauty and practicality in mind.

Stylish Bathroom Additions in Gilroy

A bathroom addition can bring comfort and convenience to your home—especially if your current layout no longer meets your family’s needs. Our bathroom additions in Gilroy include guest bathrooms, family baths, and luxury master ensuites. We incorporate features like walk-in showers, soaking tubs, dual vanities, custom tile, and energy-efficient fixtures. Each bathroom is designed to reflect your style while adding daily functionality.

Beautiful Sunroom Additions in Gilroy

Enjoy Gilroy’s sunshine and natural beauty all year long with a custom sunroom addition. Whether you want a peaceful space to unwind, a bright family room, or a home office surrounded by natural light, our sunrooms are designed for comfort and versatility. We use energy-efficient materials, top-quality windows, and smart insulation to ensure your sunroom is enjoyable in every season.

Functional Room Additions in Gilroy

Need more space for a home office, gym, guest room, or playroom? Our room additions in Gilroy are tailored to your family’s changing needs. We design and build new spaces that integrate seamlessly with your home’s layout and exterior design. Every project is crafted to enhance both functionality and aesthetics, with attention to detail from the foundation to the finishes.

Second Story Additions for Maximum Space

Maximize your living space with a full second-story addition in Gilroy. Ideal for homeowners who want to expand vertically without giving up yard space, second-story additions can include extra bedrooms, bathrooms, lofts, or even private living quarters. We handle everything—from structural engineering and architectural design to interior finishes—ensuring your new level looks and feels like it’s always been there.

Home Addition Costs in Gilroy – What to Expect

Every home addition is unique, but we provide clear, detailed estimates from the start. Here’s a general guide to home addition pricing in Gilroy:

Interior Additions

• Kitchen Additions: $250–$400 per sq. ft.

• Bathroom Additions: $25,000–$60,000+

• Second Story Additions: $200–$500 per sq. ft.

Exterior Additions

• Room Extensions (ground level): $180–$300 per sq. ft.

• Sunroom Additions: $20,000–$70,000+

• Garage Conversions / ADUs: Starting from $20,000

💡 Final pricing depends on design complexity, structural needs, materials, and permit requirements. We walk you through everything with full transparency.

Why Choose Royalty Builders for Your Gilroy Home Addition?

• ✅ Local Knowledge: We’re familiar with Gilroy’s zoning laws, architectural styles, and permitting process.

• ✅ Complete Project Management: From planning and design to construction and finishing, we handle it all.

• ✅ Top-Tier Craftsmanship: Our team uses high-quality materials and pays attention to every detail.

• ✅ Tailored Designs: We customize each addition to match your goals, taste, and lifestyle.

• ✅ Reliable Communication: We keep you updated every step of the way and always deliver on our promises.

Your Local Home Addition Contractor in Gilroy

At Royalty Builders, we take pride in helping Gilroy homeowners create more space, more value, and more enjoyment in their homes. Whether you’re adding a room, expanding a kitchen, or building an entirely new floor, we’re your trusted partner for thoughtful design and high-quality construction.

We treat every home like it’s our own—and it shows in the results.

Contact Us Today

Ready to expand your home in Gilroy? Contact Royalty Builders today for a free, no-obligation consultation. Let’s talk about your goals, explore your options, and bring your vision to life with expert planning and craftsmanship.
📞 Call us or 📩 fill out our online contact form to get started. We’re ready to build the space you’ve always wanted—right where you are.

Frequently Asked Questions (FAQ) – Home Additions in Gilroy

Q1: How much does a home addition typically cost in Gilroy?
A: The cost of a home addition in Gilroy varies based on factors such as size, design complexity, and material quality. On average:​

• Minor Kitchen/Bathroom Remodel: $275 to $525.​

• Major Remodels (structural changes, roof framing): $550 to $1,600 or more, depending on complexity.​

• Additions over 500 sq ft: Starting at $1,600.​

• New Construction: Beginning at $2,100.​

For a precise estimate tailored to your project, we recommend scheduling a free consultation with our team. 

Q2: Do I need a permit for a home addition in Gilroy?
A: Yes, obtaining a building permit is required for most home addition projects in Gilroy. Projects such as new construction, additions, remodeling, repairs, and extensions to electrical, mechanical, and plumbing systems necessitate a permit. Our team manages the entire permitting process to ensure your project adheres to all local codes and regulations. 

Q3: How long does a typical home addition project take in Gilroy?
A: The duration of a home addition project in Gilroy depends on the project’s scope and complexity. Generally, such projects can take several months from design to completion, considering factors like permitting, design approvals, and construction phases.​

Q4: Can you match the style of my existing home in Gilroy?
A: Absolutely! Our expertise lies in creating seamless additions that harmonize with your home’s current architectural style and finishes, ensuring a cohesive and aesthetically pleasing result.​

Q5: What types of home additions do you offer in Gilroy?
A: We provide a diverse range of home addition services, including:​

• Room Additions: Expanding your living space with additional bedrooms, living rooms, or specialized rooms.​

• Second-Story Additions: Adding a new level to your home to maximize space without expanding the footprint.​

• Kitchen Expansions: Enlarging your kitchen area for enhanced functionality and comfort.​

• Accessory Dwelling Units (ADUs): Creating independent living spaces on your property, perfect for rental income or extended family.​

Each project is customized to align with your specific needs, preferences, and budget.

📞 Call us or 📩 fill out our online form to get started. Let’s build something extraordinary—together.