Efficient resource use - High density, and identification with building and place and nature it to be encouraged. This level of occupier control over their environment, intellectual and economic, would engender true attachment to site, house and nature. All material listed are subject to local availability - to avoid energy waste and CO2 emissions. Selection has been made on the basis of appropriate constructional technology, embodied energy, toxicity, initial cost, and the ability for redeployment at a later date. Living organisms are impermanent, trapped in the throes of birth, life and death.
All materials weather and decay.
Analogously, the ecological house may reflect natural life process this in its use of non-toxic recycled materials, natural unpainted surfaces, and living surfaces such as turf.