**3. Conclusion**

This chapter aimed to search for the possibilities of expanding the construction of wooden apartment buildings in the Mellunkylä region by developing a mass-produced wooden apartment concept suitable for complementary construction—"The Noppa concept." The sustainability of this concept was considered from the perspective

of materials, construction methods, the adaptability of the designed spaces as well as design flexibility. The results were the architectural design proposals based on a theoretical approach considering contemporary applications in the wooden apartment construction market, but further research such as life-cycle assessment will be done as part of other studies.

As a country with a sustainable social structure, a well-educated population, and a high level of technological expertise, Finland has an excellent opportunity to rebuild itself in line with the principles of sustainable development and zero energy building as in the case of Mellunkylä region. Advances in research and product development related to (engineered) wood products with high processing value and long carbon storage times, sustainable use of industry side streams, and ensuring transparency and efficiency in the timber market will contribute to this sustainable development. Furthermore, encouragement of wood structures to function as carbon storage, endorsing material neutrality in fire regulations to reduce the need for double fire protection of wood buildings, and industries and other private investors' contributions to sustainable development by focusing on improving existing processing technologies and making them more resource and energy-efficient play a critical role in this progress.

In this sense, it is believed that this chapter will contribute to the spread of wooden apartments to achieve a low-carbon economy as one of the key tools in tackling climate change problems. In particular, the proposed architectural design solutions will support the decarbonization of buildings and a zero-energy building approach.
