Gowanus residents are planning another rally against the planned Lightstone development tonight as the developer prepares to move forward with construction. Lightstone filed plans this week to start construction, DNAinfo reported. The development was approved by the New York City Planning Commission in March. The controversial complex will consist of 700 apartments on the banks of the flood-prone and toxic Gowanus canal at 363-365 Bond Street. Mayoral candidate Bill Thompson will speak at the rally, organized by Save Gowanus. It is scheduled for tonight at 7:30 pm at the Carroll Street bridge.