Powys County Council
£1m to £2m
This £1.3m development was the first Passivhaus development that had been built for the local authority and the first council homes to be constructed for 30 years.
The homes have all been certified to Passivhaus standard, the method of advanced low-energy construction. Final air tests in the bungalows revealed 0.27 air changes an hour with the houses registering 0.49, below the maximum of 0.6 air changes per hour required for Passivhaus certification.
The properties were built with heat recovery units to utilise the excess heat that is produced to warm the properties, thereby incurring lower heating bills. Each home also has 4.2 KW of photo voltaic roof panels to generate electricity.
The seven energy efficient homes – a mix of two-bedroom bungalows and two-bedroom and three-bedroom houses – were built using low energy construction methods and include sustainability features such as solar panels and mechanical heat ventilation recovery systems to reduce running costs for tenants. Welsh-grown wood was used for the timber frame while cellulose fibre insulation, manufactured from recycled newspaper, was used to reduce the use of plastics.
We were Highly Commended in the Residential Property of the Year category in the 2022 Constructing Excellence Wales Awards. The project was also shortlisted in the Sustainability category of the Insider Wales Property Awards 2021.