IDPA Japan Design Award

El Retiro Spa

by Mendiola Arregui

Project Description

This project originates as a space for retreat, conceived through introspection — a personal and private spa set in the mountains of Tapalpa, where the architecture deliberately renounces the idea of a façade: there is no gesture toward the exterior, no frontal composition. The building does not seek to be seen, but to be inhabited.
Just as the architecture turns its full attention inward, the program it houses shares this same introspective condition. It is a constellation of spaces conceived for pause, contemplation, and rest; a sequence that invites one to slow down.
The entrance is emphasized as the only outward gesture. From that point, the project descends and is organized into four distinct volumes. These are connected through a cross-shaped circulation that structures the whole and emphasizes the transition between areas. The movement from one space to another defines the experience. Visual terminations, the play of light, and the handling of light and shadow shape the project’s atmosphere.
Light does not invade; it emerges. It originates within the different enclosures and filters into the circulations, marking transitions and establishing contrasts. Low light operates as a threshold that articulates the sequence of movement.
The project unfolds as a sensory sequence — an exercise in which the absence of a façade is, in fact, a position: to situate the interior atmosphere as the project’s primary value, where light, shadow, materiality, and movement construct the experience of space.

Mendiola Arregui


Mendiola Arregui is an architecture studio based in Guadalajara, Jalisco, Mexico, founded in 2020 by Carlos Mendiola and Andrea Arregui, both graduates of the Instituto Tecnológico de Estudios Superiores de Occidente (ITESO). Their practice is defined by a sensitive engagement with context, combining conceptual exploration, constructive clarity, and a precise attention to detail across projects of varying scales.
Central to their work is the construction of atmosphere. Through a careful orchestration of light, materiality, and spatial sequences, their projects are conceived as experiential environments where transitions, shadows, and subtle variations in perception shape the way spaces are inhabited.
Among their distinctions are First Prize at the Pabellón Eco 2025 and an Honorable Mention at the 14th Jalisco Architecture Biennial (2026) for the project “El Retiro Spa,” establishing the studio as a relevant emerging practice within Mexico’s architectural scene.

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