Housing for Zero Energy - Projects Recent low-carbon projects alreadycompleted using our tool. WikiHouse (Almere, the Netherlands) This project demonstrates digitised (4.0) self-building Holz 100 (Baden-Württemberg, Germany) This project is a prototype development of prefabricated Dowel Laminated Timber elements. Mobble (Huldenberg, Belgium) This project consists of low-carbon prefabricated timber frame container units including variable living layout designs. 3CEA (Kilkenny & Carlow, Ireland) This project consists of near zero energy and low carbon housing units, equipped with PV panels.