One of Australia's wealthiest men is facing the wrath of some influential Melburnians over the private helipad he wants built atop a $500 million, 54-storey South Yarra skyscraper.

Two of the country's most influential women company directors are among locals who have contacted Stonnington Council with objections to the helipad, on what will be the tallest building in Melbourne outside the CBD.

Some Melbourne hospitals, including the Royal Childrens, have helipads but they are less common on private developments. Credit:Joe Armao

Helicopters using the proposed helipad would ferry a small number of wealthy residents from the tower to events such as the Melbourne Cup and the Grand Prix.

The number of objections has swollen to more than 200 since locals first learnt of plans for a helipad on the Capitol Grand development in late January.