Palo Alto is a city of innovation, elegance, and architectural diversity—and your home should reflect that same level of quality and function. At Royalty Builders, we specialize in custom home additions in Palo Alto that align with your lifestyle while preserving your property’s style and value. Whether you’re expanding a historic Craftsman, modernizing a mid-century home, or adding a second story to a luxury residence, we deliver seamless additions with premium craftsmanship and thoughtful design.

With years of experience navigating Palo Alto’s zoning codes, building permits, and high-end construction standards, we’re the trusted choice for homeowners seeking top-tier results.

Custom Kitchen Additions in Palo Alto

Looking to transform your kitchen into a modern culinary space? Our kitchen additions in Palo Alto are designed to meet your needs for space, flow, and function—while adding aesthetic value to your home. Whether you want a sleek, open-concept layout or a gourmet chef’s kitchen, we create stunning spaces with premium cabinetry, stone countertops, built-in islands, energy-efficient appliances, and smart storage solutions.

Stylish Bathroom Additions in Palo Alto

Your bathroom should be a luxurious and relaxing part of your home. Our bathroom additions in Palo Alto include everything from upscale guest baths to spacious spa-style master suites. We incorporate custom vanities, frameless glass showers, soaking tubs, radiant heated flooring, and designer finishes—built to last and designed to impress. We work closely with you to ensure every detail reflects your vision and meets your standards for comfort and elegance.

Beautiful Sunroom Additions in Palo Alto 

Palo Alto’s year-round sunshine and natural beauty make it the perfect place to enjoy a custom sunroom addition. Whether you envision a peaceful reading nook, a vibrant indoor garden space, or a light-filled family room, we design and build sunrooms that bring in natural light while maintaining comfort and energy efficiency. Our materials and finishes are carefully selected to blend seamlessly with your home’s architectural style.

Functional Room Additions in Palo Alto

Your home should evolve as your lifestyle changes. Our room additions in Palo Alto are ideal for home offices, guest suites, hobby rooms, gyms, or children’s play areas. We ensure every addition matches your existing layout and integrates perfectly into the design and flow of your home. From the structural work to the interior finishes, we deliver a polished space that enhances daily life.

Second Story Additions for More Living Space

Space is at a premium in Palo Alto, making second-story additions a smart way to expand your home’s square footage without sacrificing your outdoor living area. We design and build entire second levels complete with bedrooms, bathrooms, lofts, or independent living spaces. Our process includes full engineering, permit management, and design continuity, ensuring your second story looks and feels like a natural part of the original home.

Home Addition Costs in Palo Alto – Transparent & Custom Estimates

Every home addition is unique. We provide detailed, honest estimates based on the size, design, and complexity of your project. Here’s a general breakdown of home addition costs in Palo Alto:

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 Additions (ground level): $180–$300 per sq. ft.

• Sunroom Additions: $20,000–$70,000+

• Garage Conversions / ADUs: Starting at $20,000+

📌 Palo Alto’s permitting requirements, lot conditions, and upscale finishes may influence final pricing. We offer full transparency and step-by-step guidance.

Why Choose Royalty Builders for Your Palo Alto Home Addition?

• ✅ Deep Local Knowledge: We’re experts in Palo Alto’s permitting process, zoning codes, and architectural styles.

• ✅ Design-Build Simplicity: From design to construction, we manage your entire project in-house.

• ✅ Luxury-Level Craftsmanship: We use premium materials and focus on detail, precision, and quality.

• ✅ Personalized Solutions: Every addition is uniquely designed to meet your specific goals and lifestyle.

• ✅ Trusted by Homeowners: Our work is backed by satisfied clients and consistent 5-star reviews.

Your Trusted Home Addition Contractor in Palo Alto

At Royalty Builders, we’re proud to serve Palo Alto homeowners with personalized service, expert planning, and beautifully executed results. Whether you’re adding space for your family, investing in your property, or reimagining your home’s potential, we bring vision, experience, and craftsmanship to every project.

Contact Us Today

Ready to expand your Palo Alto home with a custom addition? Contact Royalty Builders for a free consultation. We’ll listen to your needs, offer ideas, and guide you through the process from concept to completion.
📞 Call us or 📩 fill out our contact form to get started. Let’s build the space your home deserves.

Frequently Asked Questions (FAQ) – Home Additions in Palo Alto

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

• Basic Room Addition: Approximately $300 to $400 per square foot. For a 200 to 400 square foot addition, this equates to about $60,000 to $160,000. ​

• Second-Story Addition: Costs typically range higher due to structural considerations.​

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 Palo Alto?
A: Yes, obtaining a building permit is required for most home addition projects in Palo Alto. The City of Palo Alto mandates permits for any new construction, remodeling, expansion, addition, or repair to a structure. This includes projects such as additions, swimming pools, trellises, carports, sheds, skylights, covered patios, and most interior and exterior remodeling work. Our team manages the entire permitting process to ensure your project adheres to all local codes and regulations. ​City of Palo Alto

Q3: How long does a typical home addition project take in Palo Alto?
A: The duration of a home addition project in Palo Alto depends on the project’s scope and complexity. The building permit process alone can take between 6 to 12 months, which includes preliminary reviews, plan approvals, and compliance checks. Once permits are obtained, construction timelines can vary, but projects often take several additional months to complete. Factors such as permitting, design approvals, and construction phases all contribute to the overall timeline.​

Q4: Can you match the style of my existing home in Palo Alto?
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 Palo Alto?
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.