Heymo.1

A 262-room hotel in Keilaniemi, part of the three-building Swing House Campus designed by L Arkkitehdit. The facade is the architecture — corten steel fins arranged in a repeating diamond pattern across the entire west elevation, a sail-like screen that the architects designed to bridge the red brick of Otaniemi and the glass office towers of Keilaranta.

The fins project outward from the facade, creating deep triangular shadows in direct light and filtering warm amber through every opening at night. The material is designed to catch and amplify warmth — flat brown in flat light, burning copper-orange in the hour before dark. Documented from golden hour through blue hour to full night to show the complete range of what the corten does.