A legal dispute over a Sydney marina extension threatens heritage views, with high costs and conflicting claims.

A legal battle is occurring over plans to extend a marina on Sydney Harbour's north shore, impacting views of heritage sites like Cockatoo Island and Kelly's Bush Park. Opponents, including the Hunters Hill Trust and Friends of Kelly's Bush, argue the expansion would harm the area's heritage and views. The council, facing $378,000 in legal fees, has asked for community donations. The applicant's barrister claims the expansion won't affect heritage values. The hearing continues.