By Tom Bevan & Rom Preston-Ellis Cate Blanchett has been accused of ‘total disregard’ during construction of her eco-home in Cornwall \- which has ‘destroyed holidays’ and cost a neighbour £60k. The Lord of the Rings star, 54, and her playwright husband Andrew Upton, 57, bought the £1.6 million cottage in Mawgan Porth four years years ago and has since demolished the original structure to replace it with a five-bedroom eco-home. But the ongoing renovations have angered her neighbours with the noise reportedly making the residents lives hell – and turning visitors away from the popular tourism …