17th Avenue Clinic is a health-oriented commercial building centred around a purpose-designed skin clinic. Deceptively simple in form, the clinic derives its articulation from the modulation of light, privacy and transparency. Its central light well, flared roofline, reaching clerestory, cutaway corner decks, impervious central concrete band and articulated open glass and concrete bays at grade all contribute to a highly tuned envelope. This system provides a meaningful response to a program often relegated to mundane suburban typologies.