A development project on Franklin Street inched closer to city approval Thursday after the Architectural Review Committee unanimously green-lighted the 60-unit, mixed-use complex. A hearing is set for Sept. 11 during the Planning and Zoning Commission meeting. Pennrose wants to have most of the design work completed before the fall deadlines to apply for tax credits and subsidies to fund construction. It plans to apply in November to the Connecticut Housing Finance Authority for tax credits and the state Department of Housing for a low-interest loan. Pennrose can only go forward with the project if it is successful with both agencies. If not, it will apply again next year.