What is the best investment in future proofing my home against the predictable rising energy and water costs?

Passive solar design by a good designer/architect and investment in the insulation fabric of the house structure. For example,  the urbanform system, whilst marginally more expensive than cavity brickwork, will often raise the star rating of the home substantially. This will have significant energy benefits in the future and may immediately halve the energy costs for heating and cooling.

After this investment, the next priority is to build in conduits and services that will allow the future fitting of alternative technologies such as photo voltaic panels, wind turbines, grey water and rain water harvesting.

Seven Steps to Sustainability
A registered builder with a Waterwise award