First it was "Fortress Brookie". Now Manly could have a "Giant" stadium should new Manly majority shareholder Scott Penn have his way.

Penn wants to transform Brookvale Oval into a multi-purpose stadium, replicating baseball heavyweights San Francisco Giants' home ground AT&T Park, which – aside from being a 40,000-seat stadium – hosts concerts, has retail and food outlets, a wall of fame and a garden.

Big plans: Manly majority shareholder Scott Penn. Credit:Tomasz Machnik

Penn hopes to have the stadium completed in time for the 2017 season.

"I've been to San Francisco and spent a lot of time there and have been through the stadium," Penn said. "They created a precinct. In baseball they play a lot more games, about 60-70 home games, so they get good utilisation. You don't want a white elephant. You want to use it.