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Testa & Weiser is a Los Angeles–based architecture practice founded in 2002 by Peter Testa and Devyn Weiser, with projects spanning multiple scales and media. The studio approaches architecture not as a set of stable categories or inherited typologies, but as a shifting field of disciplinary questions, methods, and forms of knowledge. Across design practice, architectural pedagogy, and critical discourse, the office has built a sustained body of research around material systems, organizational structures, and representational media.
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Testa & Weiser has developed a unique business model that enables work with Fortune 500 corporations, start-ups, institutions, and universities. Recent collaborations include projects with Stäubli Robotics, NASA/Ames Research Center, Swiss Federal Laboratories for Material Science and Technology (EMPA), ACCIONA Infraestructuras, 3D Systems Inc., ARUP Consulting Engineers, Herman Miller Inc., HEXCEL, Álvaro Siza and Gehry Partners.
Key projects include Kings Road Apparel Shop (2000); Carbon Tower Prototype (2004); Strand Tower and Precursors (2005); NASA OMEGA (2009) and XNRG (2010) renewable energy infrastructure; FACTORe, manufacturing plant for PSA Peugeot Citroën (2015); ZXT, housing and mixed-use prototype for Shenzhen (2016); Gameboard, a design platform and graphical user interface (2019); AMGEN 1000 Research Campus (2019); Non-Standard Graphics (2019), new conventions for representation of architecture; and Model Homes (2021), a 21st century prototype dwelling.
Testa & Weiser projects have been exhibited internationally, with installations in New York, Los Angeles, Tokyo, London, and Paris. Publications featuring the practice include The New York Times, The New Yorker, AD Architectural Design, and The Times of London, along with books such as Extreme Textiles: Designing for High Performance, Skin + Bones: Parallel Practices in Fashion and Architecture, and FORM+CODE in Design, Art, and Architecture. Carbon Tower Prototype was included among the twenty–five significant architectural projects featured in Archaeology of the Digital, the Canadian Centre for Architecture’s exhibition and publication series. Several Testa & Weiser projects are also held in the permanent collection of the Canadian Centre for Architecture.
Peter Testa is Founding Partner and Design Principal of Testa & Weiser, Inc. and Founding Director of the MIT Emergent Design Group. Before establishing the practice, he worked as Project Architect with Pritzker Prize laureate Álvaro Siza, directing major architectural projects in Europe and the United States. From 2016 to 2019, he held the role of External Expert in Strategic Design and Architecture at McKinsey & Company, where his work focused on urban innovation, and sustainability-oriented planning.
Testa’s work has focused on advanced building systems, renewable energy infrastructure, housing prototypes, research campuses, and large-scale mixed-use projects. Key projects include Carbon Tower, Timber Towers, XNRG Water & Renewable Energy, NASA OMEGA Project, Factor(e): PSA Peugeot Citroën, ZXTX Housing & Mixed-Use, and AMGEN 1000 Research Campus.
Testa is the author and coauthor of several books, including Robot House: Instrumentation, Representation, Fabrication (Thames & Hudson, 2017). His work has received recognition through the MIT Award for Innovation in Teaching, three Graham Foundation awards, the Municipal Art Society of New York Architecture Award, and the NEA Design Arts Award from the National Endowment for the Arts.
Testa has maintained a long-standing role in architectural education, research, and curricular leadership. At Columbia University GSAPP, he was Assistant Professor of Architecture from 1990 to 1993 and Associate Professor of Architecture from 1993 to 1997. From 1997 to 2002, he was Associate Professor of Architecture at the Massachusetts Institute of Technology, where he also served as Founding Director of the MIT Emergent Design Group. He has been a member of the SCI-Arc faculty from 2004 to the present and currently holds the title Senior Design Faculty.
Peter Testa is a registered architect in the State of California and holds NCARB certification. He received his B.Arch. from Carleton University and S.M.Arch.S. in History, Theory, and Criticism of Architecture and Art from the Massachusetts Institute of Technology.
Devyn Weiser is a Founding Partner and Design Principal of Testa & Weiser, Inc., the Los Angeles practice she established with Peter Testa in 2002. She is also Co-Founder of the MIT Emergent Design Group (EDG), a cross-disciplinary design research program active from 1997 to 2002.
Recently completed architectural projects and research platforms include Testa & Weiser Archive (2024–2026); Model City (2024–2025); Automate the Archive (AUTO) (2023–2025); Model Home (2022–2023); Building After Market (BAM!) (2022); and Model Figure (2021). These works extend Testa & Weiser’s research into architectural models, archival interfaces, graphical systems, and software platforms that reorganize design production as a field of disciplinary inquiry.
Weiser’s work has received international recognition through exhibitions and publications. Projects by Testa & Weiser are included in the permanent collection of the Canadian Centre for Architecture (CCA) and have been presented in museums across North America and Europe.
Weiser has held a design faculty appointment at the Southern California Institute of Architecture (SCI-Arc) since 2005, where she served as B.Arch. Thesis Coordinator from 2009 to 2013 and Visual Studies Coordinator from 2016 to 2021. In 2010, she co-initiated SCI-Arc’s Robot House, a research laboratory for robotics in architecture. Her additional academic appointments include Design Studio Critic at the Rhode Island School of Design, Graduate Design Studio Critic at the University of Pennsylvania, and Guest Lecturer, Architecture Class, at the Städelschule (State Academy of Fine Arts) in Frankfurt am Main.
She is the author of more than a dozen research papers on architecture, design, and computation. Her scholarship and design research appear in peer-reviewed journals spanning art, architecture, engineering, and science, along with international press coverage in The New York Times, The Washington Post, and The Times of London.
Weiser holds a B.F.A. and B.Arch. with Honors from Rhode Island School of Design and an M.S. Advanced Architectural Design from Columbia University Graduate School of Architecture, Planning and Preservation. Her honors include the AIA Henry Adams Certificate, the Graham Foundation Award, ACADIA Digital Media Professional Award and Digital Fabrication Professional Award, and the Municipal Art Society of New York Architecture Award.
Collaborators - in chronological order
Ursula Schneider
Duks Koschitz
Ian Ferguson
Nina Chen
Hunter Knight
James Vincent
Joshua Mun
Emily White
Atsushi Sugiuchi
Patrick Shields
Jonathon Stahl
Christopher Day
Steven Moody
Rangel Karaivanov
Emily Burton
Daniel Hapton
Mina Jun
Kaiho Yu
Andrew Chittenden
Rebecca Fitzgerald
Jesse Gates
Nadia Calderón
Interns - in chronological order
Annie Lo
Jocelyn Lin
Evelina Sausina
Yuan Tiauriman
Ryohei Koike
CS Dawson
Brian Fraumeni
Dong ah Cho
Andy Chang
Margaret Hewitt
Kazua Ogawa
Nanao Shimizu
Zachary Schoch
Danielle Yip
Elana Pappoff
Diego Trujillo
Erin Besler
William Hu
Haleh Olfati
Jasmine Park
Anass Benhachmi
Jack Gaumer
Andrew Kragness
Larisa Rus
Simon Alvarez
Kyle Branchesi
Rachel Bagen
Uriel Lopez
Benjamin Vanmuysen
Alison Rust
Lily Nourmansouri
Peder Brand
Michelle Lozano
Su Yun Hong
Franco Chen
Alex Chang
A.J. Rosales
Noni Pittenger
Lisa Barrett
Kevin Lin
Rachael Burke
Kyla Schaefer
Kevin Finch
Justin Kim
Vaishali Shah
Chao Chen
Aaron Choi
Carrie Li
Ann Gutierrez
Zhongding Addin Cui
Vaida Kidykaite
Priscila Villalpando
Arsenios Zachariadis
Sam Kaufman
Zoe Malecki
Ben Weisgall
Sam Flower
Chenxuan (Nero) He
Xin Liu
Justine Poulin
Shayan Khorassani
Vincent Yung
Paige Davidson
Tianze Li
Mackenzie Champlin
Jack Belter
Caroline Hayes
Benjamin Jepsky
Audrey Lau
Indi Kusuma
TESTA & WEISER have been featured in the following journals and books:
AD Architectural Design (London)
Architectural Record (New York)
Architecture (New York)
A+U Architecture and Urbanism (Tokyo)
Architecture d'Aujourd'hui (Paris)
Archis (Amsterdam)
Arkitekten (Copenhagen)
Arquitectura (Madrid)
Assemblage (Cambridge)
Baumeister (Munich)
Bauwelt (Berlin)
Blueprint (London)
Casabella (Milan)
Civil Engineering (Washington)
Concept (Seoul)
Construire (Milan)
Domus (Milan)
El Croquis (Madrid)
GA Global Architecture (Tokyo)
Indian Architect and Builder (Mumbai)
Kenchiku bunka (Tokyo)
l'Arca (Milan)
LA Architect (Los Angeles)
Lotus International (Milan)
Metropolis (New York)
New Yorker Magazine
Praxis (New York)
Topos (Munich)
El Pais (Madrid)
Le Monde (Paris)
Los Angeles Times
London Times
New York Times
Washington Post
FORM+CODE In Design, Art, and Architecture
Casey Reas, Chandler McWilliams
(Authors)
Network Practices
Anthony Burke, Therese Tierney
(Editors)
Skin + Bones: Parallel Practices in
Fashion and Architecture
Brooke Hodge, Patricia Mears, Susan
Sidlauskas (Authors)
Extreme Textiles: Designing for High
Performance
Matilda McQuaid (Author)
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