Four decorative boulders placed outside a home in Newnham have been slapped with a council notice, warning the owners to remove them – or face a £2,500 fine. The rocks, nicknamed ‘Owlstone Henge’ by residents, have been outside an address on Owlstone Road for several years. They were put on a sharp bend by resident Nick Hurd to keep cars off the grassy verge and help slow down vehicles so pedestrians would stay safe on the unadopted road. But last week Nick awoke to find the rocks had been wrapped in “environmental crime scene” tape and slapped with a council warning notice demanding the “owne…