Your San Bruno home deserves to grow with your life. Whether you’re expanding your kitchen, adding a luxurious bathroom, or building an entirely new second story, a thoughtfully designed home addition by Royalty Builders adds space, comfort, and long-term value.

We specialize in custom additions that look and feel like they’ve always belonged—handled entirely in-house, from concept to completion. With expert craftsmanship, refined design, and full transparency, we make expanding your San Bruno home an exciting and rewarding experience.

Custom Kitchen Additions in San Bruno

A kitchen addition is one of the most transformative investments you can make in your San Bruno home. Whether your current kitchen feels too cramped, outdated, or closed off, we specialize in expanding and upgrading this central space to better reflect your lifestyle. Imagine a sun-filled kitchen with a spacious island for family breakfasts, high-end appliances for entertaining, and custom cabinetry that maximizes both storage and elegance.

Our team designs kitchen additions that seamlessly integrate with the flow and style of your home. From layout improvements and plumbing adjustments to lighting, countertops, flooring, and finishes—we manage every detail in-house. With Royalty Builders, your new kitchen won’t just be larger; it will be a space that inspires, performs, and welcomes.

Stylish Bathroom Additions in San Bruno

An additional bathroom brings convenience, comfort, and luxury to your home—especially when it’s thoughtfully designed. Whether you’re accommodating a growing family, creating a private guest suite, or upgrading your primary bath to a personal spa, we craft bathroom additions that balance form and function beautifully.

Our San Bruno clients often request walk-in showers with frameless glass, double vanities with ample storage, modern soaking tubs, radiant heated floors, and smart lighting solutions. We take care of all plumbing, tiling, electrical, and ventilation work, ensuring your new bathroom looks stunning and performs perfectly. Every detail is customized to your preferences and seamlessly blends into your home’s existing character.

Sunroom Additions in San Bruno

A sunroom is a bright, peaceful extension of your home—and a favorite for homeowners who want to enjoy more natural light and a closer connection to the outdoors. In San Bruno, where fog can roll in one minute and sunshine breaks through the next, a sunroom offers year-round enjoyment in total comfort.

Whether you’re creating a relaxing space to unwind with a book, a cheerful spot for morning coffee, or a flexible room for entertaining, our sunrooms are built for light, beauty, and comfort. We use energy-efficient windows, durable framing, and clean architectural lines to make sure your sunroom feels like an intentional part of your home—not just an add-on. With Royalty Builders, your sunroom will be as functional as it is inspiring.

Functional Room Additions in San Bruno

When your home’s layout no longer fits your life, a well-planned room addition can make all the difference. Whether you’re working from home and need a dedicated office, hosting guests and want a private suite, or simply ready for a media room, playroom, or craft space—we design additions that meet your needs while enhancing your home’s value.

Our approach focuses on functionality, flow, and visual harmony. We ensure your new room aligns with your existing floor plan and complements your home’s exterior and interior finishes. In San Bruno’s varied residential neighborhoods, we’ve helped homeowners create flexible, personalized spaces that improve daily living—without the need to relocate.

Second Story Additions in San Bruno

Need more space but don’t want to lose your backyard? A second-story addition is a smart, elegant way to grow. Whether you’re adding bedrooms, bathrooms, an office, or a full upper-level retreat, we help San Bruno homeowners expand vertically with confidence.

These projects require detailed planning and precision construction. We take care of structural engineering, zoning compliance, staircase design, and integration with your current roofline and materials. The result? A second story that looks like it’s always been part of your home—and adds significant functionality and long-term value. With Royalty Builders, your upward expansion will be strong, stylish, and fully aligned with your lifestyle.

Home Addition Costs in San Bruno

Project costs vary based on size, finishes, and complexity—but here’s a general guide to get you started:

✅ Interior Additions

• ✅ 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

• ✅ 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 San Bruno’s elevation, lot sizes, and local permitting requirements, final pricing may vary depending on design, access, and complexity. We provide detailed quotes after your consultation.

Why Choose Royalty Builders for Your San Bruno Home Addition

✅ Local Expertise: We understand San Bruno’s permitting process, design guidelines, and neighborhood diversity.
✅ Design + Build: From planning to punch list, we handle everything in-house for full control and accountability.
✅ Tailored Craftsmanship: Every addition is uniquely designed and built to suit your home and lifestyle.
✅ Clear Communication: We keep you informed, involved, and confident—every step of the way.
✅ Licensed & Insured: Your project is completed by experienced professionals with the credentials to back it up.

Your Trusted Home Addition Contractor in San Bruno

At Royalty Builders, we believe your home should evolve with you—without compromise. Whether you’re planning a kitchen expansion, new bathroom, sunroom, or second-story build, we’ll bring your vision to life with quality, clarity, and care.

We’ve earned the trust of San Bruno homeowners by delivering thoughtful designs, expert craftsmanship, and beautiful results that stand the test of time.

Frequently Asked Questions – Home Additions in San Bruno

Do I need a permit for a home addition in San Bruno?
Yes. We handle the full permitting process and ensure your project complies with local zoning, building, and safety codes.

How long does a home addition take?
Typical timelines range from 3–6 months depending on size and scope. We’ll give you a clear project schedule during the consultation phase.

Will my new space match the look of my current home?
Yes. We design all additions to blend seamlessly—visually and structurally—with your existing home.

Are there building restrictions in San Bruno?
Some areas have rules around height, setbacks, and design review. We navigate these requirements and secure all necessary approvals.

Can you build ADUs or second-story additions in San Bruno?
Absolutely. We specialize in both and will help you determine the best option for your property and needs.

Ready to Expand Your San Bruno Home?

Let’s build a space that fits your future. Contact Royalty Builders today to schedule your free, no-obligation consultation. We’ll review your property, understand your goals, and provide a plan that turns your ideas into a beautifully built reality.

Contact Us Today

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