Zhuji’s GROHE boutique turns a modest 13 m frontage into a sculptural landmark. The façade is clad in 1 000 × 1 000 mm rhombus-cut aluminium panels whose navy–indigo gradient rises in a saw-tooth “mountain” profile—a subtle nod to Zhejiang’s terraced landscape and the city’s jewel-cutting heritage. Each panel is CNC-milled, folded and numbered off-site, then clipped to a galvanised steel megaframe; the dry-joint system let the rainscreen go up in just two days while keeping fixings invisible. A 3.6 m-wide frameless glass portal slices through the centre, edged by a 120 mm deep lightbox that carries the 600 mm LED GROHE word-mark. To the left, a 1.1 m projecting diamond sign—cantilevered on a hidden H-beam—acts as a beacon along the high street. Services and cabling run in a 200 mm cavity behind the panels, so the skin can be lifted for maintenance without disturbing the interior. The result is a precision-built envelope that fuses German engineering with Zhuji’s own artisanal flair.