The Cumbria under ground building:
 Cumbria is a county in England with beautiful nature. The weather in most days of the year is cold and rainy with an average of 20 snowy days (World Weather Online 2014). An under ground house has been built in this area that is self-sufficient. According to Ecology building society (2003) the advantages of underground buildings is to have stable temperature inside the building and to maintain more green spaces. However they have problems such as lack of air,light and  permeability to water that could be solve by proper design of building. In Cumbria building the only facade of the building is made of glass and the back of building is dark . Sun pip has been used in the back of the building
to provide natural light for day times. Furthermore photovoltaic tile and wind turbine have been installed to make the building off-grid (Ecology building society 2003). As I watched the video on you tube, I notice that many insulation layers have been used in this building to make it work. I have read about natural stone buildings and caves that do the same thing without using any insulation that cost a lot or damage the nature. In order to be sustainable this is a good structure,however, these kind of building could be built in another location like caves to be more efficient.

http://www.anglianhome.co.uk

  sources:
-Ecology building society 2003,Going underground A Cumbrian perspective, England,accessed 17 May 2014, <http://www.ingenia.org.uk>
- https://www.youtube.com/watch?v=E-O2ggn29fI
-World Weather Online 2014,Lake District Monthly Climate Average, United Kingdom,accessed 17 May 2014, <http://www.worldweatheronline.com>