New Temple Complex

East Hampshire, South East

Special Award for Sustainability: Sponsored by Derwent London

Presented to an exemplar project, that demonstrates excellent sustainability credentials in terms of overall design parameters, material selection, construction methods and long term energy consumption. 

In an era marked by environmental challenges, the imperative to adopt sustainable practices in architecture has never been more critical.

Sustainability has taken centre stage in the architectural world, and this project encapsulates it and serves as an inspiring testament to the possibilities and responsibilities inherent in sustainable building design. The journey began by setting ambitious targets for low energy use and the incorporation of renewable energy sources. The commitment to continuous monitoring by the design and client team underscores a dedication to achieving and exceeding sustainability goals. The transition from buried gas cylinders fuelling gas boilers to on-site power generation marked a pivotal shift toward sustainability, accompanied by a comprehensive service strategy and off-grid waste treatment. 

Central to the project’s energy efficiency is a service strategy grounded in passive design principles. Investments in building fabric, insulation, and airtightness go beyond meeting Building Regulations requirements, showcasing a commitment to reducing energy demand at its source. Off-grid waste treatment through a klargester adds another layer of sustainability, providing a self-contained solution for foul waste purification before discharge into the landscape. 

The rural location and limited power supply prompted research into low-energy, passive design innovations. Noteworthy among these is an alternative, more sustainable air conditioning system. Sub-floor ventilation systems draw warm air through an underground labyrinth, showcasing a thoughtful integration of passive cooling techniques. Automated louvres in the façade and low solar transmitting glass further contribute to the project’s success in maintaining a comfortable internal environment without relying on conventional air conditioning. On-site solar panels generate electricity to power a low carbon Ground Source Heat Pump, meeting all underfloor heating requirements in the building. The project operates as carbon neutral, surpassing Building Regulations Part L requirements. 

The client’s commendable investment in green energy and passive solutions, along with the collaboration with environmental engineers Skelly & Couch, positions the project as a pioneer in sustainable faith-building construction. Analytical modelling with structural engineers uncovered the superior sustainability of a fully engineered timber frame over traditional choices like steel and load-bearing blockwork. The decision not only reduced embodied CO2 but also eliminated the need for additional material finishes and site deliveries. Off-site precision fabrication, utilising engineered timber, further minimised waste, showcasing a commitment to responsible construction practices