Loreta Castro Reguera

Design Director & Founder, Taller Capital and Professor of Architecture, Universidad Nacional Autónoma de México, Mexico

Loreta Castro Reguera

Design Director & Founder, Taller Capital; Professor of Architecture, Universidad Nacional Autónoma de México, Mexico

  • 1 / 3

    Holcim Foundation for Sustainable Construction

    Loreta Castro Reguera, Design Director & Founder, Taller Capital; Professor of Architecture, Universidad Nacional Autónoma de México, Mexico.

  • 2 / 3

    Board of the Holcim Foundation

    Loreta Castro Reguera, Design Director & Founder, Taller Capital and Professor of Architecture, Universidad Nacional Autónoma de México, Mexico.

  • 3 / 3

    Holcim Awards 2023 - Welcome Reception

    Loreta Castro Reguera, Design Director & Founder, Taller Capital; Professor of Architecture, Universidad Nacional Autónoma de México and Holcim Awards Gold 2017 winner for Hydropuncture in Mexico City.

Loreta Castro Reguera is Design Director and Founder of Taller Capital and Professor of Architecture at the Universidad Nacional Autónoma de México (UNAM) in Mexico City. She served as a member of the Board of the Holcim Foundation for Sustainable Construction from November 2023 to 2025 and was a member of the Holcim Foundation Awards 2025 jury for Latin America.

Last updated: February 24, 2026

Her work centres on the intersection of water systems and urban design. In recognition of this focus, she received the Druker Traveling Fellowship from the Harvard Graduate School of Design in 2010. She was Design Director and Technical Coordinator of the UNAM project Hydropuncture in Mexico City, which received the Global Holcim Awards Gold in 2018 and the Holcim Awards Gold for Latin America in 2017. The project was praised by the jury for “foregrounding an extremely important challenge for contemporary and future society”.

Loreta previously served as Chair of the Holcim Foundation Awards 2020 jury for Latin America and returned as a jury member in 2025. She was also a Motivator at the Holcim Foundation Next Generation Awards Lab 2018 in Mexico City and a workshop presenter at the 6th Holcim Forum 2019.

Project update June 2020 – Hydropuncture in Mexico

Loreta Castro Regura is co-author of the Global Holcim Awards 2018 Gold winning project, Hydropuncture: La Quebradora Waterpark in Mexico City. The publicly-accessible water retention and treatment complex consolidates an alternate, decentralized, and sustainable water management system for Mexico City.

In 2010, she co-founded Taller Capital with José Ambrosi. The practice focuses on housing and public infrastructure projects that address systemic urban challenges. Their work has received national and international recognition, including the MCHAP.emerge Award (IIT Chicago), the Architectural League of New York Emerging Voices Award and the Ibero-American Architecture Biennial.

Loreta teaches at Estudio RX within UNAM’s Faculty of Architecture and has served as a visiting professor across Latin America, Europe and the United States. Her work has been featured in international media including The New York Times and El País, and she has authored essays published globally.

Holcim Foundation Awards 2025 - Jury Meeting Latin America

“The future of our cities lies in rethinking what is already built.” – Loreta Castro, Mexican architect, urban designer, and co-founder of Taller Capital, highlights how the dominance of informal settlements across Latin American cities calls for safer, more resilient approaches to density—focusing not on expanding outward, but on transforming what already exists.

She graduated Suma Cum Laude in architecture from UNAM (2004), holds a Master of Architecture from the Accademia di Architettura di Mendrisio (2004), and earned a Master of Architecture in Urban Design with Distinction from the Harvard Graduate School of Design (2010).