The NFH is developed for serial production, based on a larger toolbox of prefabricated residential typologies. A first prototype was built for a European family in the southwest of Costa Rica. They chose a two-bedroom configuration with steel structure and pine wood finishes, which was shipped to its target location on one single truck. The building is designed around a central service core in order to optimize logistical efficiency regarding assembly, maintenance and usage. The project seeks for integral sustainability in terms of its economic, environmental, social and spatial performance.