Thames & Central Energy Efficiency Advice Centre

Sustainable ("to keep in existence; maintain") development is meeting our
generations requirements without ruining those of future generations.

The UK Government's site.

European Housing Ecology Network-EHEN.
EHEN develops good practice in all aspects of ecology involved in or
affecting the provision, management and serving of housing.

Housing associations

Sustainable Homes promotes awareness of sustainable development
issues for housing associations and encourages the adoption
of sustainable and environmental policies and practices.

Green Street gives advice and information on how to improve the
environmental performance of homes.