Your home should grow with your lifestyle—and in Mount Hamilton, the space and setting offer limitless potential. Whether you’re looking to expand your square footage, add a second story, or create a modern kitchen with stunning views, Royalty Builders delivers high-end home additions designed to meet your vision and enhance your property’s value. We manage the entire process—from design to permitting and construction—with expert craftsmanship and signature service every step of the way.

Custom Kitchen Additions in Mount Hamilton

Your kitchen should reflect how you live, cook, and connect. Our custom kitchen additions are more than just extra square footage—they’re carefully designed spaces that bring beauty and functionality together. Whether you envision a wide-open layout with an oversized island, a chef-grade setup with premium appliances, or an elegant entertaining space with custom cabinetry and stone finishes, we create kitchens that work harder and feel better. In the hills of Mount Hamilton, we also take full advantage of natural light and views—designing kitchens that are as inspiring as they are efficient.

From layout planning to plumbing, ventilation, and luxury finishes, we manage every aspect of the process so your new kitchen becomes the heart of your home.

Stylish Bathroom Additions in Mount Hamilton

A well-designed bathroom can completely elevate your daily routine. Whether you’re adding a luxurious ensuite, a family-friendly full bath, or a convenient guest powder room, we combine smart layouts, beautiful materials, and thoughtful details to create bathrooms that feel both stylish and serene.

Our team ensures every element—from high-end vanities and tilework to lighting, plumbing, and ventilation—is flawlessly executed. In hillside homes like those in Mount Hamilton, we also account for water pressure, insulation, and efficient heating to keep your space as functional as it is beautiful.

Sunroom Additions in Mount Hamilton

Enjoy the outdoors all year round from the comfort of a custom-designed sunroom. Mount Hamilton offers breathtaking scenery, and a sunroom is the perfect way to experience it—without worrying about heat, wind, or weather. Whether you want a cozy reading room, a sunlit breakfast area, or an indoor-outdoor lounge for entertaining, we build sunrooms that feel like a natural extension of your home.

We use energy-efficient windows, durable materials, and seamless design transitions to ensure your sunroom is comfortable, bright, and built to last. These additions are perfect for relaxing, hosting, or simply bringing a bit more sunlight into your day.

Functional Room Additions in Mount Hamilton

From home offices to media rooms and guest suites, we design spaces that serve your lifestyle. Room additions are some of the most versatile home upgrades—and our approach ensures they feel purposeful, polished, and perfectly integrated.

Whether you’re working remotely, hosting family, or creating a flex space for hobbies or wellness, we’ll design a room that balances flow, privacy, and light. Our Mount Hamilton clients often use room additions to add usable square footage without altering the footprint of their property—making it a smart, high-value solution.

Second Story Additions in Mount Hamilton

Need more space without losing your yard? Build up, not out. A second-story addition is the perfect way to dramatically expand your home’s livable space while maintaining your lot’s footprint. It’s ideal for multi-bedroom expansions, private retreats, or a full upper-level suite with hillside views.

Adding a second story requires expert planning—from structural engineering to stair design, layout reconfiguration, and seamless exterior matching. We take care of every detail, ensuring your new level feels like it was always meant to be there. And with Mount Hamilton’s scenic surroundings, your second floor may just become your favorite part of the home.

Home Addition Costs in Mount Hamilton

The cost of your home addition depends on scope, structure, finishes, and site conditions. Below is a general guideline to help you plan:

✅ Interior Additions

These typically involve expanding within or directly adjoining your existing structure—less structural work, faster turnaround.

• ✅ Room Additions: $300–$450 per sq. ft.

• ✅ Kitchen Expansions: $350–$500 per sq. ft.

• ✅ Bathroom Additions: $350–$600 per sq. ft.

• ✅ Garage Conversions: $250–$400 per sq. ft.

✅ Exterior Additions

These projects involve more complex structural work such as roofing, foundations, or second levels.

• ✅ Second Story Additions: Starting at $400 per sq. ft.

• ✅ Sunrooms/Enclosed Patios: $300–$450 per sq. ft.

• ✅ ADUs (Attached/Detached): $400–$700 per sq. ft.

📌 Due to Mount Hamilton’s hillside terrain, rural zoning, and custom home layouts, final pricing may vary based on design scope, permitting requirements, and structural complexity.

We offer detailed, transparent quotes after your consultation—no surprises, just solid planning and premium results.

Why Choose Royalty Builders for Your Mount Hamilton Home Addition

✅ Local Expertise: We understand the unique building conditions in Mount Hamilton—including rural permitting processes, hillside zoning, and environmental requirements.
✅ Design + Build: From concept through construction, we handle every step in-house for a seamless, stress-free experience.
✅ Tailored Craftsmanship: Every addition is thoughtfully designed and built to match your home’s architecture and enhance its long-term value.
✅ Reliable Communication: Clear timelines, honest updates, and a dedicated team—you’ll never be left guessing.
✅ Licensed & Insured: We deliver professional-grade results, backed by full licensing, insurance, and a portfolio of successful local projects.

Your Trusted Home Addition Contractor in Mount Hamilton

At Royalty Builders, we believe your home should evolve with you. Whether you’re adding a spacious kitchen, an elegant bathroom suite, or building an entire second story with panoramic views, our team is here to guide you every step of the way. We’ve earned the trust of Mount Hamilton homeowners by combining superior design, precision building, and a commitment to getting it right—on time, on budget, and above expectations.

Frequently Asked Questions – Home Additions in Mount Hamilton

Do I need permits for a home addition in Mount Hamilton?
Yes. Home additions in Mount Hamilton typically require permits through Santa Clara County, especially in hillside or unincorporated zones. We manage the full permitting process for you.

How long does a home addition take?
Most projects range from 3–6 months, depending on complexity, permitting, and weather conditions. We provide a full project timeline after your design consultation.

Can you match the style of my existing home?
Absolutely. We specialize in seamless integration—rooflines, materials, finishes, and layouts that align with the original architecture and style.

Are there zoning limits or hillside restrictions in Mount Hamilton?
Yes. There may be regulations on height, setbacks, and grading. Our team navigates all zoning, planning, and environmental codes to ensure full compliance.

Do you offer ADUs or separate units?
Yes. We design and build attached or detached ADUs, including garage conversions and backyard cottages—ideal for guests, in-laws, or passive income.

Ready to Build Your Dream Addition?

If you’re ready to create more space, function, and beauty in your Mount Hamilton home, our team is here to help. From the initial idea to the final walkthrough, Royalty Builders delivers elevated living—on time, on budget, and with unmatched attention to detail.

Contact Us Today

📞 Call us or 📩 fill out our contact form to schedule your free consultation. Let’s build something extraordinary—together.