The Cornwall Park Trust board is appealing a ruling that an Auckland property developer doesn't have to pay it $170,000 in back rent.
Yong Xin Chen bought a Maungakiekie Ave house - at the edge of Auckland's Cornwall Park - on leasehold land in 2005 for $450,000 but in 2010 her annual rent increased from an $8300 to $73,750.
Chen attempted to negotiate to freehold the property and adjust the rent if her lease was renewed but vacated the house in November 2011.
Cornwall Park Trust Board, which owns the land, later chased Chen in the High Court at Auckland for close to $300,000 in back rent and repair work on the property, which is now being tenanted.
Chen fought the claim and told the court in May the trust board had not been fair when dealing with her.