Cloud-synchronized architecture for a home automation system

An architecture that provides ubiquitous access to a home automation system utilizes both a home database and a configuration database maintained by remote cloud services. In one example embodiment, a system configuration of the home automation system is generated and maintained in a home database accessible on an in-home LAN. The home database is synchronized with a configuration database of cloud services over the Internet. User input is received in a home automation control UI indicating a change to one or more services or scenes provided by hardware elements of the home automation system. When there is connectivity between a device providing the home automation control UI and the in-home LAN, the system configuration in the home database is utilized to effect the indicated change. When there is no connectivity between the device providing the home automation control UI and the in-home LAN, the system configuration in the configuration database of cloud services is utilized to effect the indicated change.