Autonomous houses give their residence a great sense of connection to the environment, create socially interactive spaces and save residence money while still delivering the services they need. In this Factsheet we consider autonomous water and energy supply only and the monetary value this has. In a nut shell services are delivered without financial transactions! To enable fair comparison with typical houses initially our renewable energy systems are ignored so just the conservation measures can be assessed, later they are incorporated to give a full picture. Looking forward we also examine the wider implications on the nations finances and the way these are measured.