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We pride ourselves on design. Each member of our team has a unique skill-set and personality that, when combined, creates an unbeatable design force. 


We are LEED accredited and incorporate green design thinking into every project, saving energy, time and the environment whenever possible.  We approach every site from its own unique perspective and strive to incorporate our client's vision, resulting in elegant design solutions that exceed expectations.

Joseph Spierer Architects believes that every person has a unique sense of design which can be accessed and brought to life in a personal way. JSA discovers and draws out that hidden sense from every client, creating not only a unique and beautiful design, but also one which is both practical and personal. 

Joseph Spierer, AIA


Principal Architect

​A Southern California native and licensed architect with over 20 years of experience, Joseph Spierer received his on-the-job training at several leading Los Angeles and Redondo Beach architecture firms.  Joseph approaches each project thoughtfully and creatively, enabling clients to enjoy the process through a more personalized approach.

Joseph Spierer grew up in Los Angeles County. He received his Architecture degree from The University of Arizona School of Architecture. Mr. Spierer has taken and passed all ten written and oral tests required to achieve an architect's license in the State of California, and is legally qualified to practice Architecture in over 40 States across the United States of America. 

Having designed homes all over the South Bay and beyond, Joseph is able to bring out the best in both ground-up construction and adaptive reuse, drawing on his expertise in single and multi-family residential and commercial architecture.


Joseph is married, with three children, and resides in Palos Verdes Estates, California. 


Eileen Gueringer, RA, LEED AP


Eileen graduated from the University of Texas at Austin with a Bachelor of Architecture, and soon after, became licensed to practice architecture in the State of California. Over the years, she has gained expertise in the intricacies of specific zoning and HOA considerations from Palos Verdes to Manhattan Beach and throughout Southern California.

Along with her 15+ years of experience in high-end residential, multi-family and commercial architecture, she brings strong innovation to each project. Blending this technical knowledge and design expertise, she works to maximize every project site and help our clients realize their architectural goals. 


Robert Lesaca, RA



A native of Southern California and a licensed architect, Robert has gained over 20 years of architectural experience living and working in various cities throughout the continent. As a foreign exchange student in Mexico City, Robert fell in love with the architectural profession, and he continues his world travels to enhance his appreciation and knowledge of architecture.


Robert has been integral in the design of many commercial, institutional, industrial, and residential buildings in Northern and Southern California, as well as Arizona and Mexico City.


Raymond Vuong



Raymond graduated from the NewSchool of Architecture and Design with a Bachelor of Architecture. His education began in the urban environment of Downtown San Diego which further inspired him to continue the pursuit of architecture. He applies everything he has learned to his work, and he strives to create a better built environment by considering the finer details of each structure.  


Raymond is currently pursuing his California architectural license.

Gabriel Albi



Gabriel has a Bachelor of Architecture from the Southern California Institute of Architecture. Since graduation, Gabriel has worked in award-winning commercial architectural and design-build firms. He is an expert in advanced 3D modeling and graphic representation and applies that knowledge to his work.


Gabriel is a mentor at a Los Angeles academy where he assists young artists and designers aspiring to attend architecture schools and universities.

Gabriel is currently pursuing his California architectural license.


Ziyi Yang



Ziyi earned her Masters of Architecture from the University of Southern California after her undergraduate education in China. She also spent time studying abroad in Germany. Her passion to explore architecture around the world led her to the South Bay with a variety of experiences.


She has worked on large commercial projects, multi-family projects, and workplace designs. Her technical expertise and 3D modeling abilities make her a valuable asset to the JSA team. 

Ziyi is currently pursuing her California architectural license.

Othávio Berzote



Othávio gained the majority of his architectural experience in Brazil where he holds a Bachelor of Architecture and Urbanism from Unicentro Belas Artes de São Paulo.


He has delivered architectural designs for commercial and high-end residential buildings in greater Los Angeles, including schematic design through construction documents and 3D modeling. He has experience delivering the full cycle of architecture projects, from initial design to construction. 

Othávio is currently pursuing his California architectural license.

Moniba Montazeri



Moniba graduated from one of the most prestigious universities in Iran with a Masters of Architecture. During her studies, she discovered her passion for luxury residential architecture. After graduating, she moved to Los Angeles where she gained years of experience in several areas of architectural design.


Having worked on a wide range of projects, she applies her breadth of knowledge to all creative aspects. She enjoys working on the conceptual and schematic stages of the initial design process having a unique influence on the final design.


Moniba is currently pursuing her California architectural license.


Sofia Videla


Marketing Manager/ Designer

After graduating from the Savannah College of Art and Design with a Bachelor of Architecture, Sofia moved to the South Bay to join the JSA  team. She gained her experience in marketing by working for a digital platform, making her well versed in social media marketing, creative writing and content strategy. 

Sofia brings a unique set of skills in marketing and architectural design to the team. Having lived in Singapore, Venezuela, Colombia, Mexico, and both coasts of the United States, her multicultural background offers a fresh perspective to her work. 


Andrea Montano



As a South Bay native, Andrea grew up in Redondo Beach learning the intricacies of project coordination from an early age. She follows in her family's footsteps by gaining a wealth of experience in construction administration. 


On the JSA team, Andrea is responsible for maintaining the office and performing executive duties.  

She continues developing her love for fashion, drawing inspiration from architecture and design. 


Karen Gibson



Karen is a native Southern Californian who grew up in the South Bay.  She joined Joseph Spierer Architects after working in property management.  She oversees the office and is responsible for keeping JSA running smoothly and efficiently, through many administrative and personal tasks. 


She continues to develop her love of real estate and is learning more about architecture from the JSA team.