Kirby says that while there was an error in the covenant on the title, all three Courts ruled against the subsequent owner of the land, who he says wanted to carve it up and develop and sell it for residential development.
"Unfortunately that was our mistake, but the Courts have said the intent of it was clear. It was there to be protected and it could be protected with the covenant, even with the mistake."
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Meanwhile Federated Farmers' president Katie Milne says farmers with QEII covenants will take heart from the Supreme Court decision.
"Rural and farming families comprise the majority of landowners behind the more than 4400 covenants in New Zealand and they make this commitment to protect bush, wetlands and other areas of special biodiversity on their properties so they can be enjoyed for all future generations," says Milne.
Milne says farmers were pivotal in the establishment of the QEII National Trust 40 years ago.
"Rural landowners have been the instigators of more than two-thirds of QEII covenants since 1977 and a study last year by Waikato University estimated the opportunity costs associated with covenanted land in New Zealand is in the range of $443m to $638m."
"So farmers have plenty of skin in the game with this form of biodiversity protection and we're delighted to see the Courts rule in favour of the original landowner's vision for protection in perpetuity vs a developer keen to turn a buck," says Milne.