top of page



Edificio 252 Marathon

[TAA] Taller de Arquitectos Asociados | COMUN

Santiago, Metropolitana, Chile

November 2023


Pablo Talhouk Martin-Posse (Architect), Andrés Nicolas Briones González - Eduardo Cancino Gatica (Architect)


Jorge Morales, Luz Honores, Diego Danyan, Freddy Lagos, Nelson Hotchstetter, Saskia Bruin, Luis Entrinch. (Architecture design team), Luis Soler P. & Asociados. (Structural Engenieer), Constructora Carran (Construccion Team), Martinez Harasic (Lighting Designer), Estudio Barreal (Landscape Designer


Surmonte Inmobiliaria


Aryeh Kornfeld


The project is based on the idea that the quality of a collective housing building resides in the quality of its common spaces and in the experience of how its inhabitants arrive at their home.
That is why a series of freely accessible intermediate spaces are proposed in different places in the building to promote encounters between neighbors. In total, they add up to 2,900 m2 of common areas.
To achieve this, three operations are carried out:
First, the basement and first floor are set back towards the interior of the plot, creating a sunken courtyard that is visually linked to the exterior of the building and the public sidewalk. This 681 m2 courtyard functions as a covered plaza and also allows natural lighting and ventilation in the basement. This operation also allows working on the scale so that a large-sized building is compatible and friendly for pedestrians walking along its front.
The second operation was strategically placing the stairs within a distance of less than 10 meters from the apartments, thus allowing open and balcony-like circulation around the central void of the building.
Finally, a series of viewpoints are proposed that expand the common circulation on different floors and allow views of the southern area of the city without sacrificing the maximum density allowed by regulations.


The commission involved the development of a high-rise building comprising 252 apartments ranging from 1 to 3 bedrooms. The project is a privately commissioned venture for the sale of apartments located in a central area of Santiago, close to schools, transportation, and sports centers.
Specifically, the building is situated to the south of the Ñuñoa district, in an area undergoing regeneration and residential densification. This area formerly housed industries and warehouses, resulting in larger plot sizes compared to the rest of the district and allowing for larger-scale projects. However, there is a lack of public space in the area.
Given that the available land for the project spans an entire block, we were presented with the opportunity to address the urban image of the area and its relationship with the street. As a strategy, the two corners of the plot were opened up and turned into public squares for the neighborhood, while the same architectural style was used to delineate the boundary between the private and public aspects of the project.


The commercial order requested that the larger units be located to the north with square-proportion terraces only in front of the living room, and to the south, one-bedroom units with continuous balconies. This generated a constraint for the design of the building facades.
Since the solar orientation of the facades, especially the north, was not compatible with the type of terraces or balconies requested by the commercial objectives, we develop a system of aluminum blinds that creates a shadow of up to 50% in the interior spaces, thus achieving an overall weighted energy savings of close to 60%. Furthermore, the movement of these blinds adds dynamism to the facade's appearance.
The building's roof was also allocated for gathering and recreation spaces, with larger terraces to the south for communal use and smaller ones to the north for more intimate gatherings. This aligns with our concept that all communal spaces should be for community gatherings, including living areas and circulation spaces where views between different areas intersect.

bottom of page