The water management for the Paradigm house has several levels; rainwater is diverted from the home’s roof to a 5,000 gallon free-standing outdoor tank, from which water is filtered for domestic use. Greywater is then collected for irrigation and fed directly to two small outdoor greenhouses where produce can be grown. The home’s compost toilet could potentially provide fertilizer for this on-site veggie patch.
The home’s 722 square foot size additionally helps to moderate energy usage and reduce its carbon footprint. However, Trondowski’s design does not sacrifice a sense of open, livable space. One wall of floor-to-ceiling glass doors—which does at present prevent the home from meeting Passivhaus standards—opens out onto the deck and fills the home with light while providing views that help the space to feel significantly larger.