Kevin McCloud on low-carbon builds and green home tech 

'You can buy all the tech and gadgets, but you’ve got to start with what the bones of what you have already'

Kevin McCloud has numerous energy-saving tips. Picture: Grand Designs Live/PA

They say charity starts at home — and in many ways, so too do our efforts to live more planet-friendly lifestyles.

This year’s Grand Designs Live, which returns to Excel London on April 30, will feature a new Green Living Live area, which will highlight latest innovations in insulation, sustainable materials and energy-saving technology.