Natural building consists of several principles....
locally sourced materials.
renewable materials.
Modular and/or easily reproducible construction.
the best shared designs are those that can be locally adapted to suit their purpose. a door frame being a standard size can easily have it's door replaced.
Cultures are defined by their standards. This applies to cultural norms and laws as well as construction design.
A building is not an isolated unit, it exists in an environment. A building should be constructed in such a way that it integrates into the environment as well as integrates energy production and permaculture design into itself.
Buildings are already constructed with conduits for energy, water and communications. The water system just need to be extended to recycle the water using permaculture and fuel cells. the electrical system should include water recycling and whatever renewable source of energy available.
Natural building materials
Locally Sourced Wood
Hemp
Hemp makes an excellent building material when processed.
Rammed Earth
includes Earthbag construction, Earth Ships
Bamboo
Straw Bale
Permaculture
Fuel Cells
Solar
Natural Building