Developer Jonathan Bernstein is setting an ambitious course in Greenpoint — the first-timer is looking to build the tallest tower on the waterfront, so lofty that it exceeds current zoning laws by about 20 percent. The development, which includes two towers, one reaching 470 feet and the other up to 200 feet, would sit on a 100,000-square-foot lot on India Street by the East River. Bernstein is currently applying for the numerous city rezonings and approvals that would be needed to build the structure, the Architect’s Newspaper reported, although it may not be a lost cause. Ward Dennis, chairman of Brooklyn’s Community Board 1, says the project represents the tricky push-and-pull of new developments in the area. “It’s a beautiful project with a hard sell,” Dennis said. “What the community needs to decide is where that balance is between density and open space and affordable housing. And really, that’s what all of these projects come down to.” In fact, the developer’s promise to construct piers, install water taxi service, and facility beach access as a part of the project has reportedly helped cultivate support for the buildings.