STUDIO

TRE Architecture is an architectural practice based in Oceanside, California. The studio approaches design through a balance of artistry, technical precision, and environmental awareness.

Guided by Form, Light, and Context, the work reflects a focus on clarity, proportion, and place.

OUR HISTORY

The studio traces its origins to 1967, when Amato Teta founded his practice in San Diego after graduating from Carnegie Mellon University. His focus on thoughtful residential design established a foundation that guided decades of work.

The practice continued with Allan Teta, who earned his degree from the University of Southern California and gained experience at award-winning firms before joining his father in 2006 to form Teta Architecture, Inc.

In 2014, TRE Architecture was established, continuing this lineage of practice with a focus on residential architecture in Southern California.

The meaning of TRE

TRE, named after the Italian word for three, reflects the founder’s heritage and a foundational architectural idea. Informed by Vitruvius’ principles of utilitas, firmitas, venustas, the practice is guided by Form, Light, and Context.

OUR TALENT

TRE Architecture brings together a team with diverse professional backgrounds in residential design and construction, contributing a range of perspectives to each project.

The work is shaped by varied experience across design environments and project types, resulting in architecture that responds to site, context, and client needs with clarity and restraint.

Amato Teta

Allan Teta

Ricardo Dengel Mestres

Alyssa Apodaca

TESTIMONIALS

  • “TRE Architecture has the rare ability to truly understand their client's vision, priorities, and budget in order to design exactly what their customer wants. They understand how to balance when to stand up for their design with being flexible to their customers’ input, budgets, and constructability constraints. They have the right level of practicality as well as creative design that really allows for the most successful project.

    TRE Architecture understands the entire design and construction process, which is a very valuable asset for their clients. There are a few firms who truly just "get it" and TRE Architecture is one of them. We couldn't be more happy with the design of our home as well as the entire experience working with TRE Architecture.”

    — Brian R.

  • “For over thirty-five years TRE Architecture has been there for us. Their expertise in hearing our ideas, studying any situation, and presenting viable options for consideration have been invaluable. As we look forward to further expansion, we are confident that TRE Architecture will be by our side all the way.”

    — Dr. Carlos S. and Robert S.

  • “We extensively renovated a classic beach cottage in coastal Oceanside. Working with Allan and Ricardo from TRE was one of the highlights of our experience. From the very beginning, they demonstrated an exceptional ability to adapt to our vision while creatively navigating the space limitations and unique challenges of “square foot living.”

    What truly set TRE apart is the personal dedication they brought to the process. They answered every call, welcomed our input at every stage, and patiently guided us through each decision. Their passion for what they do—and for the people they work with—was evident from start to finish. Today, we not only have a home that reflects our vision and style, but we also feel like we’ve gained two friends in the process.”

    — Tracy & Rick N.

  • “I am a general contractor and have had the pleasure of working with this architectural firm for over 10 years. They have an amazing eye for detail, and exceptional taste in design. It's always nice to build a home from their plans. The plans are easy to follow and include the necessary information I need to build a home. I consider TRE to be the first architect I choose to work with, and the first I refer to anyone seeking plans for a new project. “

    — Ken T. (Houzz)

  • “Allan Teta of TRE Architecture helped us through a very long and arduous approval process for an extensive residential remodel. He was easy to work with in developing our ideas, his designs were straight forward, and he was readily available to our contractor as necessary changes were encountered during our construction. We are absolutely delighted with how the project turned out.”

    — Leonard G. (Houzz)

  • “Allan and his team listened to me and was attentive to my wants and ideas. They were creative, professional and positive, always trying to find creative solutions to my ideas. They were patient as I changed my whole plan, and we started over with new plans. TRE was GREAT with the city! I could not be more pleased and highly recommend TRE!”

    — Elana C. (Yelp)

  • “Allan from Tre Architecture is amazing.  We were working on an outdoor kitchen project and ran into some issues.  Allan stepped in and started working his magic!  He asked my wife and I some really thoughtful questions.  Then went to work re-designing our project to eliminate the issues while still making sure the :"must haves" made the choice lists.  With all of our desired items and some new ideas worked in as options, my wife and I picked thru and Allan helped design what we feel is our dream outdoor living space!

    I highly recommend Allan Teta and Tre Architecture as they saved our project while adding a bunch of value to our home.”

    — Frank Z.