New York City’s Department of Buildings (DOB) briefly halted construction work at the third office-to-conversion project in Manhattan this month. On Wednesday, the DOB issued a partial stop-work order at SL Green Realty’s $805 million conversion project at 750 Third Avenue in Midtown East, which is set to result in 680 residential units and potentially see 11 floors added. Despite the project resuming promptly, the stop-work order wasn’t the first one at a conversion project in the city this month. Then earlier this week, GFP Real Estate’s conversion project at 222 Broadway in the Financial District was also halted after cracks were found on a newly added floor. Update: This story has been updated to reflect that work at 750 Third Avenue resumed Thursday after a re-inspection by the DOB.