Royalty Design & Build

Hire Best Room Addition Contractor in Bonita, CA

When your home starts to feel too small or no longer fits your lifestyle, a room addition in Bonita, CA can give you the space, comfort, and functionality your family needs without the stress of moving.

 

Licensed, CSLB #1128933

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    Free, no obligation. Or call (858) 315-4249.

    In their own words

    Hear it from San Diego homeowners

    Royalty customers on camera, talking about the remodels we built for them.

    Luxury bathroom remodelSan Diego

    Kitchen remodelLa Mesa

    Bathroom remodelCarlsbad

    Kitchen remodelSan Diego

    Bathroom remodelSan Diego

    ★★★★★

    “Royalty Build and Design makes you feel like royalty! My wife and I had a tub to shower conversion and worked with Lavi as our project manager. We were both impressed with his response time in answering questions and addressing any issues.”

    Steve G.Google review · 6 months ago

    ★★★★★

    “We had our bathroom remodeled by Royalty design and build and we’re really happy with how everything turned out. Lavi and his team was easy to work with, showed up when they said they would, and kept us updated throughout the project.”

    Zuleidy C.Google review · a month ago

    ★★★★★

    “From start to finish, Gabi (project manager) and Lavi (owner) were exceptional.”

    A Google reviewerGoogle review

    Reviews quoted from Google, with first name and initial only.

    Expand Your Living Space With Royalty Design & Build - Custom Home Additions Made for the Way You Live

    When your home starts to feel too small or no longer fits your lifestyle, a room addition in Bonita, CA can give you the space, comfort, and functionality your family needs without the stress of moving. At Royalty Design & Build, we specialize in designing and building seamless, high-quality home additions in Bonita that blend perfectly with your existing home and elevate the way you live every day.

    Custom Room Additions Designed for the Way You Live

    Every addition we build is custom-tailored to your lifestyle, home architecture, and long-term goals. Our team ensures your new space blends naturally with your current layout and enhances the overall flow of your home.

    Bedroom Additions in Bonita

    Bedroom additions are ideal for families who need more personal space without relocating. They provide comfort for guests, growing children, or extended family while seamlessly blending into your home’s existing design.

    Primary Suite Additions

    A new primary suite gives you the luxury of a private retreat with features like walk-in closets, spa-style bathrooms, and spacious layouts. It enhances both daily comfort and long-term property value.

    Living Room / Family Room Expansions

    Expanding your living or family room creates a more open layout, making the home feel larger and more welcoming. It provides extra space for entertaining, relaxing, and enjoying quality time with the family.

    Second-Story Additions

    A second-story addition dramatically increases square footage without taking up any yard space, making it ideal for smaller lots. It allows homeowners to add multiple rooms, improve layout flow, and upgrade their property’s overall value.

    Why Choose Royalty Design Build

    Bonita homeowners choose Royalty Design & Build because we bring genuine local expertise, superior craftsmanship, and a seamless design-to-construction process that keeps every project running smoothly. Our team delivers custom room additions built with durable materials, transparent communication, and full permit and engineering support, ensuring your new space feels cohesive, functional, and perfectly matched to your home.

    Local expertise in San Diego South Bay home additions

    Our team understands Bonita’s neighborhoods, building styles, and local regulations, allowing us to design additions that fit perfectly within the community. With years of regional experience, we know how to navigate zoning, permitting, and structural needs unique to the South Bay.

    Seamless design and construction under one roof

    We manage your entire project from concept to completion, eliminating the stress of working with multiple companies. This integrated approach ensures your addition is beautifully designed, efficiently built, and completed with consistent quality.

    High-quality craftsmanship and durable materials

    Royalty Design & Build uses premium materials and skilled workmanship to deliver lasting results. Every detail from foundation to finishes is built with strength, precision, and long-term durability in mind.

    Clear communication and transparent pricing

    You’ll always know what’s happening and what to expect next, with no hidden fees or surprises. Our team provides honest timelines, detailed estimates, and consistent updates throughout your project.

    Professional permit handling and engineering

    We take care of all Bonita and San Diego County permits, engineering requirements, and inspections. This ensures your addition meets building codes, stays structurally safe, and moves forward without delays.

    Beautiful, functional spaces that feel natural and cohesive

    Your addition will look like it was always part of your home, blending seamlessly with existing architecture and interior design. We focus on flow, style, and functionality to enhance the way you use your space every day.

    Why Bonita Homeowners Choose Room Additions

    Bonita offers spacious properties, family-friendly neighborhoods, and homes with massive potential. As families grow and lifestyles change, many homeowners choose room additions to.

    A professionally designed addition enhances comfort, improves layout efficiency, and significantly boosts property value.

    Increase usable square footage

    Add bedrooms for growing families

    Expand small or outdated living spaces

    Build home offices for remote work

    Create guest rooms or in-law suites

    Add value to their home before selling

    Avoid the high cost of buying a larger house in San Diego County

    How it works

    From the First Call to the Final Walkthrough

    1

    Tell us about the project

    Call or send the form. We call you back to set a time for the visit.

    2

    Free in-home visit

    We see the space, listen to what you want and talk through the options.

    3

    Design and plan

    Layout, materials and permits, planned before any work starts.

    4

    Build and walkthrough

    One team runs the job and walks it with you when it is done.

    Questions

    Frequently Asked Questions

    Most room additions in Bonita take 8–16 weeks, depending on the size of the project and whether structural changes or permits are involved. Larger additions, such as primary suites or second-story expansions, may require additional time due to engineering and inspections.

    Yes. Any home addition, whether it’s a new bedroom, expanded living room, or garage conversion, requires permits through San Diego County. Royalty Design & Build handles the entire permitting process to ensure your project meets local building, zoning, and safety codes.

    In most cases, yes. Many Bonita homeowners continue living in their homes during construction. We work carefully to minimize disruptions, maintain safe pathways, and keep the home clean and functional throughout the project.

    Costs vary based on size, complexity, and materials, from a smaller addition to a mid-size expansion or a large luxury addition. We provide clear, detailed estimates before any work begins.

    Free in-home consultation

    Ready to Start Your Room Additions Project?

    Schedule your free consultation today and start your remodeling journey with Royalty Design and Build!

    Send us your project

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      By clicking 'Submit,' I agree to the
      Terms of Service
      and
      Privacy Policy.

      Free, no obligation. Or call (858) 315-4249.

      Book a free in-home visit