The overall objective of the project is to help to reduce the use of energy, thus contributing to a larger energy independence of Latvia and Estonia via using sustainable and low energy building principles. This is achieved by sharing of know-how among the professionals of both countries, joint tools and standard technical solutions for energy efficient building. One of the major goals of the project is raising of professional capacity regarding the low energy consumption buildings. A special training module on low energy and passive house building for architects and engineers has been developed, including elaboration of a model building that is in line with the architectural design and climate conditions shared on both sides of the border. This training module has been already applied during six three-day pilot training courses/workshops for the specialists from both countries.