The programme will see water and air source heat pumps installed at four leisure centres around the city.
The work is part of the council’s aim to become a Zero Carbon Council across its own estate and operations by 2030, with leisure centres responsible for around 40% of current building carbon emissions.
Richard Poulter, Managing Director from Willmott Dixon’s Central South region said: “We are proud to be working alongside Oxford City Council on this exciting carbon reduction project, which will deliver a step change in the mitigation of fossil fuels in the local community.
“The programme is close to our heart and through our own 2030 ‘Now or Never’ Sustainability strategy, we have committed to achieving net zero operational carbon on all our new buildings and major refurbishments within the next decade.
“Working in tandem alongside the council, Fusion Lifestyle and the local community, we will deliver the works as swiftly as possible while ensuring the highest standards are met, ensuring the leisure centres provide the best possible facilities once the works are complete.”