Revitalizing Culhuacán: Housing Unit Infonavit CTM Square by AMASA Estudio

The Housing Unit Infonavit CTM Culhuacán Square, designed by AMASA Estudio, stands as a pioneering example of urban public space revitalization in Mexico City. Originally part of the largest Infonavit development constructed in the second half of the 20th century, CTM Culhuacán spans approximately 15,000 homes in the Coyoacán borough, bordering Iztapalapa. Established in 1974, its full name—Confederación de Trabajadores de México (CTM) Culhuacán—reflects both the indigenous heritage of Culhuacán and Mexico’s mid-century welfare-state vision, offering housing to a growing working- and middle-class population.

Over the decades, like many large-scale housing projects in Mexico City, CTM Culhuacán faced challenges: deteriorating communal areas, unclear administrative responsibilities, and fragmented neighborhood organization hindered effective maintenance. Shared spaces suffered neglect, informal occupation, and misuse, impacting both community cohesion and the physical quality of the environment.

In particular, the square near the tenth section of CTM Culhuacán had fallen into disrepair, hosting worn-out courts, damaged playgrounds, and leftover areas prone to antisocial activities. The National Workers’ Housing Fund Institute (Infonavit) issued a “turnkey” bidding process on June 22, 2023, inviting design and execution proposals for four housing units, including CTM Culhuacán.

AMASA Estudio, led by Andrea López and Agustín Pereyra, won the contract with a conceptual intervention that transformed this neglected square into a vibrant social hub. The design strategically centers on a colorful chromatic arch, creating scale, containment, and a focal point for visibility and community engagement. This arch is not merely decorative; it anchors the space, prevents irregular use, and ensures continuous natural surveillance, restoring safety and order.

Surrounding this central structure are thoughtfully integrated public amenities, developed through participatory sessions with residents. The program includes two basketball courts, a calisthenics area, a covered forum with seating, children’s play equipment, and a 600-meter running track, ingeniously woven into the pedestrian circulation. This holistic approach optimizes space and budget while meeting technical standards.

Collaboration with Desarrolladora de Ideas y Espacios ensured a high-quality execution despite budget adjustments, enabling resource-efficient construction. Lessons learned from the four awarded projects allowed for shared materials, modular solutions, and consistent design strategies between architectural interventions and public space enhancements.

The revitalized square emphasizes sustainable urban design: rainwater infiltration areas, universal accessibility, and pedestrian-friendly circulation transform former pathways into lively gathering spaces. Thoughtful attention to color, pavement texture, curb modulation, and material selection unites the components into a coherent, harmonious composition.

Nearly fifty years after the construction of CTM Culhuacán, this intervention exemplifies how collaborative architecture—between designers, residents, and institutional partners—can restore the social value of public spaces. Using simple yet powerful architectural elements, such as structural steel profiles, pigmented concrete, and corrugated sheets, AMASA Estudio redefined a once-forgotten courtyard into a thriving, cared-for community landmark.