A low-carbon building firm, working with TV presenter Kevin McCloud has moved to Culham Innovation Centre.
Greencore Construction is building five houses at Cumnor Hill on behalf of HAB Housing, set-up by the Grand Designs presenter.
Founded by Ian Pritchett and Martin Pike three years ago, Greencore has doubled in size during the past year and has a factory in Worminghall.
It is also planning to open more manufacturing plants around the country.
Mr Pritchett said: “Oxfordshire is becoming a hub for an innovative approach to green buildings.”
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