At Niven Builders, we specialise in designing and constructing Passivhaus-certified homes that offer unmatched thermal comfort, superior air quality, and drastically reduced energy consumption. Our team is trained in the rigorous standards of Passivhaus building, ensuring every project meets high-performance benchmarks in insulation, airtightness, and ventilation. Whether you’re planning a new build or retrofitting an existing home, we provide tailored solutions that align with your sustainability goals and lifestyle needs.