Privacy policy

Last updated: November 11, 2026

This policy describes the intended handling of Google Nest information by a privately operated Home Assistant integration. The informational website is separate from the Home Assistant installation.

Information accessed

When the device owner authorizes Google Nest access, the integration may receive the authorized home's and devices' names and metadata, thermostat status, temperature, humidity, operating modes, temperature setpoints, and device event updates, as supported by Google's Device Access service.

How information is used

The information is used to display device status, control authorized thermostats, and run home automations chosen by the owner. It is not used for advertising or marketing. The informational website does not ask visitors to sign in with Google.

Storage and processing

Device data and OAuth credentials are handled by the owner's Home Assistant installation and its configured storage, and data may transit Google's Device Access, OAuth, and Pub/Sub infrastructure. Home Assistant may retain entity state, history, and logs according to its local configuration and retention settings. This website does not host the thermostat data or the Home Assistant control interface.

Sharing

Thermostat information is not intentionally sold or shared with advertisers. It is processed by Google and the services explicitly configured by the owner to operate Home Assistant. Other integrations or automations separately enabled by the owner can affect where device data is sent; those settings are controlled by the owner.

Access, deletion, and revocation

The owner can remove the Nest integration in Home Assistant, revoke access through Google account permissions or Google Home partner connections, and manage stored Home Assistant history and backups. Removing authorization stops future authorized access but may not automatically erase existing local records or backups.

Security

Google OAuth authorization is used rather than collecting Google passwords. Access to the private Home Assistant installation is controlled separately from these public information pages.

Policy changes

This notice may be updated if the actual data practices or configuration change. The updated date above will be revised when that happens.