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United Architects, Inc.
A Miami Architecture Firm


"Turning raw ideas into plans for comfortable, livable, inspired buildings and residences"

Navigating Nature's Challenges: Miami's Coastal Experts

Miami is no ordinary city, and our approach reflects that. While much of the U.S. relies on wood frame construction, we understand the distinctive demands of our environment. Hurricane winds and potential flooding require specialized construction techniques, and we pride ourselves on our expertise in crafting resilient, secure structures that stand up to the forces of nature.

Furthermore, our passion extends beyond mere functionality. We are dedicated to creating remarkable and practical spaces, whether it's a multi-story apartment building or a thoughtful addition to a home. Your satisfaction is our priority, ensuring that every space, building, or home we design not only meets your aesthetic preferences but also enhances your day-to-day living experience.

Recognitions and Accolades: A Testament to Excellence

Our commitment to excellence has not gone unnoticed. has recognized United Architects, Inc. as one of the 20 best architects in Miami, acknowledging our proficiency in crafting innovative and enduring designs. Additionally, the Miami Herald awarded us the Bronze Medal in the Remodeling/Contractor Category of the Miami-Dade Favorites Contest, a testament to our impact on the local architectural landscape.

Explore our portfolio below to gain a glimpse of our diverse projects. Whether you're envisioning a new residential endeavor or contemplating a transformative remodel, we invite you to reach out and discuss your project with us. Let's collaborate to bring your ideas to life in the vibrant and dynamic city of Miami.

Check out our featured projects and testimonials below

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A condo remodeling by United Architects in Miami Beach
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Miami Dade Favorites

United Architects was selected as the Bronze Winner in the Miami Herald Contest called Miami Dade Favorites in the Remodeler/Contractor Category.  See some of our remodeling projects here.

Peter A. Gudmundsson

Chief Executive Officer at BeHome247 / Proptech

Maria Luisa is a topflight architect whose work was creative, responsive to business needs, and well-managed. We retained her to design a pet crematory and retail space in Miami. Her design was innovative, attractive, and exactly on point for our business requirements. In fact, Maria Luisa suggested improvements to space utilization and process flow that we did not even contemplate. Furthermore, she is an expert at navigating the political steps necessary to gain county, city, and state approvals. Maria Luisa seems to know everyone and, clearly, they too are impressed by her competence and professionalism. I would actively seek Maria Luisa’s architecture and project management skills in the future. (From LinkedIn)

Robert Balzebre

Principal - Balzebre Investments

I am writing to express the professional conduct and impressions that United Architects has maintained throughout the course of my working with their team.

To be specific, Maria Luisa Castellanos and United Architects worked with our team to come up with various alternatives to a difficult zoning matter. In each instance, Maria Luisa was well-versed on the local zoning and building codes. She also made an important outreach to each of the city officials. She did this to understand what situations which would require zoning variances for our plans. She took time to fully understand and express in her drawings the features that would enhance my property in the best way possible.

I thoroughly have relied on United’s thorough and professional manner in many projects. I am very grateful for the time I have been able to work with this firm. (From LinkedIn)

Lori Hanson


Maria Luisa was a pleasure to work with on our plans for a total interior remodeling. She was knowledgeable and patient, willing to make revisions, and most importantly, her plans passed the permitting review on the first round, with no revisions needed! Would definitely recommend and use her again! (From Google)

Robin Katz

Homeowner & Realtor

Maria Luisa is a wonderful architect and a wonderful human being.  She is a problem solver, extraordinarily even keeled and extremely creative and knowledgeable.

Highly recommended! (From LinkedIn)

For More Testimonials

See more testimonials and letters of reference click here

Expertise at Your Service:  Maria Luisa Castellanos, R.A., LEED AP

At the helm of United Architects, Inc. is Maria Luisa Castellanos, a seasoned architect with LEED AP certification. Maria not only brings her architectural prowess to the table but also holds a Florida real estate license, a unique combination that sets us apart in the industry. This dual expertise empowers us to guide you not only in the intricacies of design but also in making sound investment decisions.

Navigating Zoning Complexities:  Architect-Realtor Advantage

As an architect-realtor, Maria Luisa understands the paramount importance of aligning design aspirations with zoning regulations. A misstep in zoning can lead to significant setbacks in realizing your vision. Our expertise extends across various zoning codes, including Miami 21 for Coconut Grove and downtown Miami, Coral Gables, Miami Beach, North Miami, South Miami, and Miami-Dade County. We ensure your project aligns seamlessly with the unique regulations of each locale.

Showcasing Our Expertise:  Exploring our Website

Explore our website to witness the breadth of our work. Some pages serve as a visual portfolio, showcasing completed projects, while others provide valuable insights into Miami's architectural landscape. Information on zoning codes, construction processes, and the city's background enriches your understanding of our holistic approach.

Why Choose Us:  A Local Architectural Authority

Maria Luisa Castellanos, R.A., anchors United Architects, Inc. with a rich history of architectural practice in Miami. With an intimate understanding of local officials, zoning codes, and the Florida Building Code, Maria ensures a streamlined project development process, minimizing complications. Our knowledge extends beyond Miami's borders, encompassing the distinct nuances of each city's zoning processes.

Tailored Solutions for Diverse Zoning Codes

Zoning codes vary across cities, and it's crucial to engage an architect versed in these intricacies. For instance, Coral Gables mandates a Board of Architects review for modifications and new constructions, while Miami Beach imposes specific criteria for historic districts and larger residences. We navigate these diverse codes, ensuring your project aligns seamlessly with regulatory requirements.

Unlocking Your Project's Potential:  Free Consultation Offer

Embark on your architectural journey with a complimentary consultation from United Architects, Inc. Our team will unravel your project's zoning requirements and collaborate with you to crystallize your design vision. Beyond that, we extend our support to help you identify properties aligning with your investment objectives.

United Architects, Inc. is not just a design firm; we are your partners in navigating the complexities of Miami's architectural landscape. Let our experience be the cornerstone of your next project, guiding you towards success with expertise, innovation, and a passion for architectural excellence.

Call to set up a complimentary initial appointment to discuss your project. If you call me, Maria Luisa Castellanos, the principal of United Architects, at 305-439-7898, I will come out to your property in Miami-Dade County and give you a free evaluation of your ideas.  In that meeting, we can develop a clear vision of what can and cannot be done.  I can help turn your vision into reality. 

Additional information

If you want to read how to build a commercial building addition in Miami, input your information in the adjacent box and you will receive an article called, "11 Steps to Building a Commercial Building in Miami".

It covers what to look for before purchasing land, such as testing, the various phases of a design project, and actually building a project - from initial phases to closeout.

Thanks for submitting! Wait for article in email.

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