Spring Boot bean conditional on @ConfigurationProperties value

As proposed here, you could create the ConfigurationProperties object manually in your @Conditional like this:

import org.springframework.boot.context.properties.bind.Binder
...
YourConfigurationPropertiesClass config = Binder.get(context.getEnvironment())
.bind("your.properties.prefix", YourConfigurationPropertiesClass.class).orElse(null);