• Looking to expand your living space, add value to your property, or generate rental income in Menlo Park? At Royalty Builders, we specialize in Accessory Dwelling Unit (ADU) construction, offering full-service design and build solutions tailored to the needs of Menlo Park homeowners.

Whether you’re envisioning a detached backyard cottage, a garage conversion, or an attached in-law suite, our experienced team is here to make your ADU project seamless, stress-free, and successful—from start to finish. We bring years of experience, local knowledge, and a passion for craftsmanship to every project we take on.

Why Build an ADU in Menlo Park?

Menlo Park, with its tree-lined streets, top-rated schools, and proximity to major tech companies, is one of the most sought-after locations in Silicon Valley. However, space is limited—and that’s where ADUs come in. An ADU (Accessory Dwelling Unit) is a smart solution for homeowners who want to:

• Increase livable square footage without relocating

• Provide private living quarters for elderly parents, adult children, or visiting family

• Earn passive income through long-term rental

• Add resale value to the property with a highly desirable feature

• Work from home comfortably by converting a backyard unit into an office or creative studio

California has passed legislation encouraging ADU development, and Menlo Park has aligned its policies to support streamlined approvals, reduced fees, and flexible design guidelines—making this the perfect time to build.

Full-Service ADU Design + Build in Menlo Park

At Royalty Builders, we pride ourselves on being a one-stop shop for ADU design and construction. We understand that managing multiple contractors, architects, and permit specialists can be overwhelming. That’s why we offer a fully integrated process that handles everything under one roof:

• Initial Property Assessment: We evaluate your lot, zoning, utilities, and site conditions to determine what type of ADU is feasible.

• Architectural Planning & Design: Our in-house designers create a custom layout that fits your needs and complements your main home.

• 3D Renderings: Visualize your ADU before construction starts, with clear plans and realistic previews.

• Permitting & City Coordination: We handle all submittals, communication, and revisions with the City of Menlo Park, ensuring compliance and fast approvals.

• Construction: Our licensed contractors use high-quality materials and proven techniques to build your ADU to last—on time and on budget.

• Final Inspection & Support: We walk you through the finished space and make sure everything is perfect, even after the build is complete.

Our collaborative process keeps you involved and informed every step of the way.

Types of ADUs We Build in Menlo Park

Every property and homeowner has unique needs. We offer a range of ADU types to suit your lifestyle and goals:

• Detached ADUs: Ideal for privacy and flexibility, detached units function as fully independent homes on your property. Great for rental income or multigenerational living.

• Attached ADUs: Built as an extension of your existing home, these units share one wall and are perfect for family use or guest accommodations.

• Garage Conversions: Transform your unused garage into a comfortable living space without expanding your footprint.

• Above-Garage ADUs: Utilize vertical space by building a new living unit above your garage—perfect for small lots.

• Junior ADUs (JADUs): These compact units (typically under 500 sq. ft.) are created within the existing home footprint and are an efficient, affordable way to add extra living space.

We’ll help you choose the right format based on your property’s layout, budget, and intended use.

How Much Does It Cost to Build an ADU in Menlo Park?

Cost is one of the most common questions we get—and for good reason. Building an ADU is a major investment, but one that can offer strong long-term returns. Typical costs in Menlo Park include:

• Garage Conversion: $120,000 to $180,000 – A cost-effective way to create an ADU without new foundations.

• Attached ADU: $200,000 to $350,000 – Seamlessly blends with your main home, offering comfortable space for family or guests.

• Detached ADU: $250,000 to $400,000+ – A standalone structure offering maximum flexibility and privacy.

Costs depend on many variables, including:

• Unit size and layout

• Design complexity

• Foundation and site work

• Level of interior finishes

• Utility upgrades (sewer, electrical, water)

• Permitting fees and impact fees (some waived under state law)

We provide detailed cost breakdowns and free consultations, so you can plan with confidence and avoid surprises.

ADU Permit Process in Menlo Park

Navigating permits can be the most intimidating part of building an ADU. Fortunately, Menlo Park has adapted its ADU policy to comply with California law (SB 9, AB 68, AB 881, and others), streamlining the process and reducing barriers.

Here’s how we help:

• Zoning Review: We confirm that your property qualifies under Menlo Park zoning regulations.

• Customized Plan Set: We prepare full architectural drawings and all documentation required for city review.

• Submission and Revisions: We submit your application to the city, handle any back-and-forth with planners, and make revisions as needed.

• Fast-Track Review: In many cases, Menlo Park must approve ADU applications within 60 days. We help ensure you’re on track for approval.

We also monitor local changes to ADU laws, so you stay ahead of new rules and requirements.

Frequently Asked Questions – ADU Services in Menlo Park

Q: How long does it take to build an ADU in Menlo Park?
A: The timeline depends on the type and complexity of your ADU, but most projects take 6 to 10 months from start to finish, including design, permits, and construction.

Q: What size ADU can I build in Menlo Park?
A: You can generally build up to 850 sq. ft. for a one-bedroom and up to 1,000 sq. ft. for a two-bedroom. Some properties may allow up to 1,200 sq. ft. depending on lot size and zoning.

Q: Do I need to provide additional parking?
A: In most cases, no—especially if your property is near public transit or if the ADU is part of a garage conversion. We’ll confirm based on your location.

Q: Can I finance my ADU project?
A: Yes! Many homeowners use home equity loans, construction loans, or ADU-specific financing programs. We can connect you with lenders who specialize in ADU projects.

Q: Is an ADU a good investment?
A: Absolutely. ADUs often provide strong ROI through rental income, property value increase, and added flexibility. They’re one of the most cost-effective home upgrades available.

Why Choose Royalty Builders for Your Menlo Park ADU?

• ✅ Bay Area Experts: We know the local codes, neighborhoods, and permit processes.

• ✅ Design + Build Under One Roof: From concept to construction, we handle it all.

• ✅ Transparent Estimates: No hidden costs—just honest, upfront pricing.

• ✅ High-Quality Materials: We build ADUs that are safe, durable, and beautiful.

• ✅ Customized to You: Every design is tailored to your lifestyle and space.

• ✅ Track Record of Success: Dozens of satisfied clients and completed ADUs across the Bay Area.

When you work with Royalty Builders, you’re not just getting a contractor—you’re partnering with a team that treats your project like their own.

Ready to Build Your ADU in Menlo Park?

If you’re thinking about adding an ADU to your Menlo Park property, now is the time.

 Call us today and schedule a free consultation

We’ll walk you through the options, provide expert guidance, and help you build the perfect space for your family, guests, or rental needs.