
Meet the Finalists
2025 | Commercial & Leisure

Meeting the unforgiving standards of a super-energy-efficient Passivhaus building – the 0.4 air leakage maximum requiring heavily insulated envelopes and airtight construction – can be a bed of nails. But for Alex Heath, it has brought pride and satisfaction.
About the Project
Eclipse Leisure Centre
And with the project not starting out as Passivhaus at all, Alex inherited a scheme with completely untested detailing. It included an extensive brick facade whose every wall tie used screws that would have broken the air seal – Alex ultimately found a double-seal solution. Add to all that the delays created by the frame contractor and pool supplier failing to meet their site obligations, plus the building maintenance system contractor going into administration, and Alex’s achievement becomes even clearer.
He helped create bespoke software to collate the huge volume of data required by Passivhaus. In a building that had to be perfect, with accreditation depending on every construction step being recorded, Alex allowed no shortcuts. He held regular workshops with the supply chain to reiterate the quality requirements and his expectations.
Alex didn’t just put in the hard work and innovative thinking. He forged a highly collaborative culture among a diverse team of consultants and subcontractors, building a high-performing motivated team that delivered a trailblazing facility that is now being used by the Passivhaus Institute as a model for energy-efficient leisure centres.


