What is a smart home?

A smart home is an installation in which selected devices and systems work together according to agreed rules. Lighting, heating, blinds and sensors can exchange information and respond to the occupants’ needs. App control is one option; wall buttons and predictable automatic operation are equally important.

Start with the occupants’ needs

Start with everyday situations: arriving home, working, relaxing and going away. Describe how each room should respond before choosing devices. This gives you concrete functions to discuss with the designer and installer, rather than just a list of products.

Local operation and remote access

Integration does not mean that every function must depend on a single app or an internet connection. Many KNX functions can operate locally. Remote access, voice services and other cloud connections have their own requirements. Specify what should remain available if the internet, a server or the power supply fails.

Define the scope of each scene

For example, an “away” scene can switch off selected lights, change the heating mode and adjust the blinds. It should not accidentally disconnect a refrigerator, protective equipment or anything that must keep running. A window or door position can only be confirmed if the installation provides suitable feedback.

Benefits you can measure

Potential benefits include easier control and better management of energy use. Savings depend on the building, settings and occupants’ habits; automation alone does not guarantee a particular reduction in bills. Agree how results will be measured and provide clear instructions for everyone using the home.

Sources and further reading

KNX Association — local operation

Content updated: 8 September 2026.