Monrovia ADU: Architect’s Guide to Building Your Backyard Home

I remember the day I first set foot in Monrovia. It was the early 90s, and the city was a haven of tree-lined streets, charming bungalows, and a palpable sense of community. As a young architect, I was drawn to the city’s rich history and architectural diversity, from the Craftsman homes in Old Town to the Spanish Colonial Revivals dotting the hillsides. There were no ADU in Monrovia back then.

One of my first clients, a lifelong resident, would tell me about his childhood home. It was a modest bungalow, but it held a secret weapon: a converted garage where his grandmother lived. This wasn’t just extra space; it was a lifeline, a way for multiple generations to thrive under one roof while preserving independence and fostering a deep sense of family. This “granny flat,” as he called it, was an early precursor to what we now know as Accessory Dwelling Units (ADUs).

Today, ADUs are more than just a nostalgic nod to the past; they’re a natural evolution in how we use and value our homes. In Monrovia, where demand for housing is high, ADUs offer a creative and sustainable way to add much-needed housing without sacrificing the character that defines our community.

Whether you’re a homeowner looking to generate extra income, accommodate aging parents, provide a space for adult children, or simply create a versatile space for your own needs, an ADU can be a game-changer. As an architect who has dedicated my career to shaping the built environment of this city, I fully support ADUs and affordable housing initiatives in Monrovia. I built my local architecture firm around these homeowners foals

In the following sections, we’ll delve into the benefits of ADUs, the Monrovia-specific regulations that govern their construction, and the step-by-step process of bringing your Monrovia ADU ideas to life. Whether you’re a seasoned homeowner or a newcomer to Monrovia, I invite you to join me on this journey of discovery and explore the transformative potential of ADUs.

The Proven Blueprint for Monrovia ADU Success: Expert Design and Planning

Homeowners often underestimate the complexity and emotional investment required for an ADU project. As an architect, I’ve advocated for several projects locally and within California and have seen firsthand how oversight in planning and design leads to the most problems. With the housing crisis, inflation, and market fluctuations, mistakes can be costly. That’s why Yifu Design Studio provides comprehensive planning, architect consultations, cost and ROI analysis completely free of charge. Everyone deserves access to reliable architecture. 

Partner with an architect early in your Monrovia ADU journey. It is an investment that pays dividends. Here’s why:

• Site Analysis and Feasibility: An architect will assess your property’s unique characteristics—topography, orientation, sunlight patterns, and existing structures—to determine the ideal location, size, and layout for your ADU. This ensures your ADU complements your main home and maximizes usable space.
• Regulatory Compliance: ADU regulations can be complex and vary depending on your property’s zoning and location. An architect will navigate the intricacies of local codes and ordinances, ensuring your design meets all requirements and avoids costly delays or rejections.
• Design Optimization: Partnering with an architect will help you create a design that not only looks beautiful but also functions efficiently. This includes optimizing space planning, selecting appropriate materials and finishes, and integrating sustainable design features that can reduce energy costs and environmental impact.

Do not be overwhelmed. Partnering with the right professionals can help you approach your project realistically.

Avoiding Costly Mistakes

One of the most common pitfalls I’ve seen in ADU projects is homeowners attempting to DIY the design and permitting process. This can lead to costly mistakes, such as:

• Non-Compliance: Overlooking zoning restrictions or building codes can result in project delays, fines, or even demolition. For example, I once worked with a client who had purchased pre-approved ADU plans online, only to discover during the permitting process that the design didn’t meet the required setbacks for their property. This oversight led to significant delays and additional costs to revise the plans.
• Budget Overruns: Underestimating construction costs is another common mistake. Without professional guidance, homeowners may not account for all the expenses involved, leading to unexpected budget overruns.
• Functionality Issues: A poorly designed ADU may not meet the needs of its occupants. This could include inadequate storage, poor lighting, or inefficient use of space.

By partnering with an architect from the start, you can avoid these pitfalls and ensure a smooth, efficient, and successful ADU project. We’ll guide you through every step of the process, from initial concept until you’re ready to build.

Monrovia ADU Regulations: Guide for Homeowners

Monrovia has proactively embraced ADUs as a viable housing solution, enacting ordinances that align with state laws while addressing local nuances. Let’s delve into the key regulations that will shape your ADU project:

Zoning and Placement:

ADUs are permitted on properties zoned for residential use, including single-family (R1) and multi-family dwellings (R2, R3). Some commercial or mixed-use zones (C2, C3, and MXD) may also allow ADUs with certain conditions. To determine the specific zoning regulations that apply to your property and assess its eligibility for an ADU, consult the City of Monrovia’s zoning map or utilize online tools like Symbium Build. This platform offers a streamlined approach to determining zoning compliance and identifying potential setbacks or restrictions that may apply to your specific parcel.

Not sure if your property qualifies? contact Yifu Design Studio for a comprehensive feasibility check that includes:

• ADU development options tailored to your property
• Cost estimates and return on investment (ROI) analysis
• Soft approval from the planning department
• Complimentary architect consultation

Size and Capacity:

Monrovia allows both attached and detached ADUs, with maximum unit sizes varying based on the type and zoning of your property. While there’s no minimum lot size requirement, a Monrovia ADU must adhere to specific size limits to maintain neighborhood character and avoid overcrowding. However, with the expertise of an architect, you can optimize your ADU’s design to maximize usable space while adhering to local regulations. For instance, we were able to design a 4-unit condo complex from a Single-Family zoned lot (R-1-2000) in Pomona, thanks to the flexibility provided by SB 330. To learn more about this project, [click here]

In Monrovia, single-family residential zones (R1) typically allow for one detached ADU and one attached ADU. Multi-family residential zones (R2, R3) may allow for more ADUs, depending on the specific zoning regulations and the number of existing units on the property.

Recent state legislation, such as SB 9 and SB 10, has further eased restrictions on ADUs, allowing for increased density and flexibility in development. SB 9 allows for the creation of two units on single-family lots, while SB 10 streamlines the approval process for multi-family housing projects, including ADUs.

Additionally, bills like SB 330 and AB 1287 have further incentivized ADU development by prohibiting local jurisdictions from enacting new laws that would restrict ADU construction and by increasing density bonuses for projects that include affordable ADUs.

Height Restrictions:

While Monrovia generally limits ADUs to one story with a maximum height of 16 feet as per Monrovia Municipal Code 17.44.005(c)(1), recent state legislation (SB 9) has opened up possibilities for greater height flexibility. Attached ADUs can now reach up to 25 feet or the height of the primary dwelling, whichever is lower. Additionally, ADUs located within half a mile of public transit or on properties with existing two-story multi-family dwellings can be built up to 18 feet tall, as per the California Government Code Section 65852.2(a)(2)(B). These relaxed height restrictions, coupled with the expertise of our team at YDS to navigate local regulations, provide ample opportunity to create spacious and functional ADUs that maximize the use of your property.

For specific guidance on height limitations and potential exceptions for your ADU project, contact the YDS team for a free consultation.

Setbacks and Parking:

Setbacks are mandatory to ensure adequate space and privacy between structures. Attached and detached ADUs must maintain a minimum 4-foot setback from side and rear property lines. Conversion ADUs and Junior ADUs have specific setback requirements to ensure fire safety. Additionally, most ADUs will necessitate one off-street parking space, although exceptions exist for specific scenarios.

Permitting and Approvals:

Navigating the permitting process is a crucial step in realizing your ADU vision. Monrovia’s streamlined process involves a pre-application meeting (optional), submission of a comprehensive application package, plan review by various city departments, and final permit issuance. Engaging a qualified architect or design professional can expedite this process and ensure your project adheres to all applicable codes and regulations.

The Monrovia ADU Permitting Process: A Step-by-Step Guide with Resources

1. Pre-Application Meeting (Optional):Schedule a meeting with the Planning Division of the Community Development Department to discuss your project and get feedback.
   www.cityofmonrovia.org
   

   

2. Submit Application: Submit a completed application form along with detailed plans and supporting documents to the Community Development Department. Find the application forms and requirements on the city’s website: https://www.cityofmonrovia.org/your-government/community-development/building/permits/apply-for-a-permit
   Monrovia ADU Permit Application Form 
3. Plan Check:Your application undergoes a thorough review by various city departments. The process typically takes 4-6 weeks.
   www.cityofmonrovia.org
   Monrovia Plan Check Process 
4. Corrections and Resubmittal (If Needed): Make corrections and resubmit plans if any issues are found during the plan check.
5. Permit Issuance: Receive the necessary permits to begin construction once your plans are approved. Permit fees vary depending on the ADU’s size and complexity.
6. Inspections: Schedule periodic inspections with the Building and Safety Division throughout the construction process.
7. Certificate of Occupancy: Receive a Certificate of Occupancy upon completion of construction and final inspection.

Streamlined Roadmap for Your Monrovia ADU Project

It really doesn’t have to be complicated, for you. We’ve developed a streamlined, three-step process to guide you through your project, ensuring a smooth design and permitting in Monrovia.

1. Plan:

• Assess your property’s potential, considering local codes, zoning, and structural factors.
• Consult with our architects to discuss your vision, needs, and budget.
• Conduct a detailed survey of your property.
• Finalize your design choices and receive a contract outlining the scope of work and costs.

What you get:

• Property report detailing your ADU’s potential
• Cost estimate
• Scope of work
• ROI analysis

2. Design:

• Create professional architectural drawings and 3D visualizations.
• Review and refine the design with our team.

What you get:

• Review sessions
• Architectural set
• Updated pricing estimate
• Updated scope of work

3. Permit:

• We handle the entire permitting process, including communication with city officials and coordination with consultants.
• Prepare your project for construction.

What you get:

• Building permits
• Construction-ready drawing set

To learn more about we can guide you through every step of the Monrivia ADU process, visit: https://yifudesignstudio.com/our-process 

Local Architect and Design Firm in Monrovia

Just as my client’s grandmother found a haven in that converted garage, countless Californians are discovering the transformative power of ADUs. These versatile spaces are creating homes that adapt to evolving needs and lifestyles.

Your Monrovia property holds untapped potential. With the right vision and guidance, you can transform your home into a multifunctional space that supports your family, lifestyle, and financial goals.

Case Study Spotlight: 784 Sq. Ft. Detached ADU in Monrovia

To illustrate the possibilities, consider our recent project: a 784 sq. ft. detached Monrovia ADU. This modern dwelling, nestled in a serene backyard, showcases how an ADU can seamlessly blend with the existing home while providing a private and comfortable space for extended family. Take a virtual tour of this project on our YouTube channel: https://www.youtube.com/watch?v=jZUSvHe5zHE.

This is just one example of the many ways ADUs can transform lives and properties in Monrovia. Whether you’re looking to create a home office, a rental unit, or a haven for loved ones, an ADU can be a valuable addition to your home.

Your Next Steps

It all starts with an idea and a free consultation. Contact my team at Yifu Design Studio for a free consultation. We’ll be happy to answer your questions, discuss your specific needs, and I’ll help you envision the possibilities.

If you’re in Monrovia, I’d also be delighted to meet you for a coffee and chat about your ADU idea. Email me at [email protected] or book an appointment directly on our website.

Additional Resources

• City of Monrovia Planning Division: https://www.cityofmonrovia.org/your-government/community-development/planning
• City of Monrovia Building and Safety Division: https://www.cityofmonrovia.org/your-government/community-development/building
• California Department of Housing and Community Development (HCD) ADU Handbook: https://www.hcd.ca.gov/policy-research/accessorydwellingunits.shtml
• Symbium Build: https://symbium.com/research/california-adu/monrovia

Remember, your Monrovia ADU journey doesn’t have to be a solo endeavor. With the right guidance and expertise, your Monrovia ADU will be a well-planned and rewarding addition to your property.