House building across Europe is a pretty mixed affair in terms of standards, quality and durability. Even where investment in innovative forms of construction has been significant over the years, there is still a distinct lack of modern industry of the kind that one associates with mainstream manufacturing. Put another way, house building in Europe has yet to advance to where the automotive industry was 25 years ago. For example, the intrinsic quality of the end product and customer satisfaction with it leave much to be desired.

Additionally, the environmental impact and energy consumption in construction is a serious problem today and yet has been known about and debated vigorously for decades. It is a fact that individual pockets of renewable energy uptake have occurred in small communities and commercial ventures. This has not occurred at the scale necessary to meet the European Union's commitments to the Kyoto protocol. So, the problems are recognised, yet the solutions are not being adopted. There are other factors, but the point is made: house building must adopt modern (if not advanced) manufacturing and design methods, if it is to change once and for all its poor quality image and the reality that too often goes with it.

Main reasons of this project are summarised bellow:

- 40% of the final energy consumption in Europe comes from the building sector
- Building sector may contribute to the Solar energy profit but this has not occurred at the scale necessary to meet the EU Commitments
- RES costs are high, since the conventional installation is not optimised and involves additional components
- Traditional constructive processes are inefficient and involve high risks for workers
- Some not-permanent habitats are not solved through traditional construction systems

Furthermore, STEDI can read most of the design files of the commercial CAD applications. Alternatively, the building design can be directly introduced by the user by means of the user friendly graphical browser (GiD)