The five members of the spending board unanimously approved extending the Dec. 31 termination date on the agreement with Lexington Square Partners LLC through April 30, with the possibility of an additional eight months depending on progress.
"There are too many buildings with historical and civil rights heritage to be demolished," he said.
Hopkins also said the city and developer had not taken adequate measures to preserve the buildings in the Superblock area.
M.J. "Jay" Brodie, president of the Baltimore Development Corp., the city's quasi-public development arm, said that the buildings had been stabilized. He also held up architectural drawings showing that historic structures would be incorporated into the renovations.
"This is historic preservation," Brodie said. "This is preserving the character of the area."
Rev. C.D. Witherspoon, a community activist, called from the back of the spending board's chambers that civil rights activists had not been told the matter would come before the board.
Some civil rights leaders have said the Superblock plans fail to properly commemorate a sit-in that occurred at a former Read's Drugstore on the block.
"It is egregious to do this to the civil rights community," Witherspoon said.
City solicitor George Nilson said the city was set to go to court over a legal challenge to the plans on Jan. 6.