AU Design Studio has remodelled the interiors of the primary bathroom in an existing ranch house as part of the ET Project in Arizona, United States.

The ET Project, located in Paradise Valley, was designed for a planetary scientist and a mathematician and involves a small bathroom renovation that is carefully aligned with the path of the sun, the geometry of the night sky, the constellations and the existing structure.

The bathroom is transformed by the careful placement of three apertures, each considered an alibi for the design of a rather specific object.

As a result, this bathroom is a contemplative place, a sanctuary and an observatory for spiritual renewal.

This project has been longlisted in the bathroom interior category of Dezeen Awards 2025.

Studio: AU Design Studio
Project: The ET Project
Credits: SmithBuilt D+B