About us

SDH strives to develop designs that encapsulate the heart and individuality of each client. The client’s vision of the project is a key component of the holistic approach to the design and development process. Sensitive to the peculiarities of each site, a strong emphasis is placed on light, form and function. SDH is constantly searching for new creative ways to integrate the interior with the exterior in order to create an intimate relationship between the user and his surroundings. Simple lines and expressive materials shape the palette for both the home’s exteriors and interiors. Understanding the fundamental nature of each material allows us to create inherent designs that establish a dialogue between the architectural form and its environment.


– Full service Architecture and Interior Design studio distinguished by an innovative and dedicated approach to design and project development.
– Strong knowledge of construction methods provide the base for sustainable buildings, while maintaining quality and aesthetics that forges recognizable designs.
– Use of multiple softwares for design process, 3D modeling and rendering, construction documents elaboration and multidisciplinary coordination:
– Autodesk Autocad
– Autodesk Revit
– Autodesk 3D’s Max
– Google Sketch Up
– Adobe Photoshop
– Adobe In Design
– Adobe Illustrator


– Design, documentation and construction administration of over 50 projects since its inception in 2013.
– More than 380.000 square feet of completed and currently in process project area.
– Production capacity of over 30 projects per year.
– Development of designs worth $xx M combined over the last 5 years.
– Combined 7 degrees in Architecture, 5 state licenses and 2 NCARB certifications.
– In-house quality control and multidisciplinary coordination program.



Principal Architect

Stephanie Halfen was born and raised in Caracas, Venezuela. She received an Architecture degree from Universidad Simon Bolivar where she graduated Summa Cum Laude and an Interior Design Degree from Parsons School of Design in New York where she also graduated with highest Honors.

Stephanie started her professional career in college when she was commissioned her first residential project located in El Avila National Park. Turning it into her graduation thesis project she was able to explore in depth the dialogue between landscape and architectural form, between light, space and constructive details, which enabled her to develop innovative ways to live in a tropical climate. Upon graduation, Stephanie established her architecture and design practice in Caracas in 2005 where she worked on numerous projects. She also became an Associate Professor in the Architecture and Design Department at her alma mater – Universidad Simon Bolivar.

Stephanie relocated to Miami, Florida in 2009 where she founded SDH Studio Architecture + Design in 2011. Since then SDH has become known for its design excellence and impeccable work ethic, it is also one of the fastest growing high-end boutique architecture and design firms in South Florida.

Stephanie is a licensed Architect in the State of Florida and holds the National Council of Architecture Board Certification (NCARB). She also serves on several Architectural Review Boards and is an active member of the AIA – The American Institute of Architects.


Project Leader / Designer

Cristina Magdaleno holds a bachelors degree in architecture from Simon Bolivar University, Venezuela. Graduating in 2015, she relocated to Miami, Florida to pursue the search for deeper architectural knowledge; specially in the area of residential housing.

In Venezuela, she participated in several projects with the cities to enhance the appearance and functionality of left over spaces, looking to increase the life quality of the neighbors. Her interest in how light, color and texture affect the human perception of a space, led her to perform her thesis project on the phenomenology behind combining these elements in architectural spaces and the effects on human perception.

Cristina has been working in SDH Studio since 2015, collaborating mostly in the coordination amongst all the disciplines involved in construction, general design processes, interior design conceptual approach and selections and handling general relations with both clients and engineers in the construction process.


Project Leader / Designer

Louis J. Fuentes was born in Havana, Cuba. He graduated from Jose Antonio Echeverria School of Architecture in 2009. While in school Louis started working in Architecture and Interior Design for residential, hospitality, and commercial projects. During this time he was responsible for the development of the conceptual phases and project presentations.

In 2013, he relocated to Miami, Florida to further advance his knowledge and training in the realm of the architectural profession.

In 2014, he joined the SDH studio team where he is involved in the development of projects from schematic design to design development. At SDH studio, Louis is considered to be a skilled 3D artist, visualization expert and BIM modeler. He is strongly interested in the process of creating Architecture through the integration of design, art, and technology.


Designer / Architect

Rosa Balsera was born in Havana, Cuba and raised in Spain & Puerto Rico. After attending the University of Puerto Rico, minoring in Fine Arts, she continued her studies at Syracuse University, New York, where she received her Bachelors of Architecture.

She relocated to Southern California after graduation, where she obtained her first architectural license. She worked in a variety of residential and commercial projects at a local Southern California architectural firm, where she was involved in all aspects of the design and building processes.

After moving to London for a few years she returned to Southern California and opened her own firm, specializing in residential projects. As a sole owner of her firm, Rosa was involved in all aspects of the profession and carried the projects from the initial client contact to construction completion.

Rosa joined SDHStudio in 2013, overseeing the construction document and project management phases of projects and gaining greater appreciation for Southern Florida architecture.

She is currently licensed in the states of Florida, California, Washington and Texas. She has held NCARB certification since 2007.


Interior Designer

Born in Miami but raised in Venezuela, Angiebeth received her bachelors degree in Architecture from the Simón Bolivar University, Venezuela (2015). Throughout her educational career, she participated in several architectural contests, and helped develop several architectural projects at the majors office.

Always having an interest in how light, materials and colors affect the human being, her main research during her studies was developing an elementary school, taking care of all the details that could impact kids in their early age.

At SDH Angie focuses on applying these learning on the interior design projects, overseeing the integration of materials, colors and lighting.

`` I believe in teamwork and the constant learning of each individual``