Eco-homes become hot property in UK's zero-carbon ‘paradigm shift’

Smart, low-carbon homes were once the preserve of one-off grand designs – now there are up to 30,000 projects in the pipeline
Instead of parking spaces, it’s flowerbeds and vegetable planters that line the car-free street of Solar Avenue in Leeds, where rows of 60 low-energy homes form a little oasis along a bend in the River Aire, a short walk from the city centre.Built in a factory across the road, these terrace houses are made from super-airtight timber panels stuffed full of wood