Tea Thology Seongsu

About this place

Tea Thology Seongsu occupies the upper floors of the 025S Seongsu Haus, a 2025 building by London-based Sophie Hicks Architects — an unusually rigorous piece of architecture for the brand-saturated streets of Seongsu. The brief was a headquarters for 025S, a Korean perfume house, and the design makes perfume's essential contradiction — the foul and the fragrant — into physical form. At street level the building is deliberately blunt: asphalt, black concrete, rubber tyre fragments pressed into the facade. Above, it transforms. The upper volume is oval with no corners to interrupt the flow, cast in concrete and wrapped in misty glass that admits diffuse light while obscuring the interior — a permanent state of near-revelation. A spiraling staircase winds through the center; the architects describe it as a continuum that "evokes the smooth, dreamy character of perfume." Copper sculptures by Choi Goen arch overhead; lighting by Studio Formgiver fills the curved acoustic cotton walls with a soft luminescence. Tea Thology takes the top of this spiral. The tea room seats a small number of visitors for a 90-minute session of Korean teas paired with desserts developed around 025S fragrances. The interior is white-on-white, minimal, and precise — separate areas for preparation and drinking lend the ritual a choreographic quality. Natural light filters through the glass envelope, measuring time slowly. What makes the experience architecturally worth attention is the ascent: the climb through the spiral is the transition. Seongsu's noise and factory-brick textures disappear floor by floor, replaced by curved walls, soft light, and eventually the stillness of the tea room. The building does not just house an experience — it enacts one. Walk-ins are occasionally possible, but the limited seating (90-minute maximum) means reservations are strongly advised.