Just to be sure... we are talking about electrical consumption, not heat quantity?! :D
In October an average of 9kWh/day including hot water. (internal meter). Temperatures 0-11 degrees. 140sqm + 80sqm basement. Single-family house built in 2020. Energy Saving Ordinance. Living area temperatures 22 degrees. Basement in thermal envelope but currently not heated. However, it still always reaches 19-20 degrees. Difficult to assess due to basement, since it is currently not heated but in thermal envelope.