KNX: The European Building Automation Standard and Where It's Used

KNX is a mature, internationally standardised protocol for building automation — lighting, HVAC, blinds, security — originally developed in Europe and now used globally, particularly favoured for its wide, well-established manufacturer support and long track record in premium residential and commercial projects.

KNX is a wired, decentralised protocol (each device can operate independently without a central hub as a single point of failure), designed for professional installation rather than DIY setup — a meaningfully different philosophy from consumer wireless ecosystems like Google Home or SmartThings, aimed at long-term reliability in a permanent installation rather than consumer flexibility.

KNX is a strong fit for premium new-build projects where wiring can be planned in from the start and long-term reliability matters more than rapid, DIY-friendly expansion — it's a less natural fit for a budget-conscious retrofit of an already-finished home, where wireless retrofit approaches are typically more practical and cost-effective.