Architecture and the building sector as the highest emission producer have to rethink shapes, materials and processes. Over the last 100 years space is getting more and more rare. We think that emissionfree buildings and luxury can always be found in detail and small architecture when it provides correctly the functions and needs of the people living there. Sometimes it is even better to reduce and realize what actually is necessary to achieve a better result. We are two students who build on 26sqm a wooden cabin in the woods of Finland for less than 12 000 Euros.