City councilors do not approve or refuse Development Permits. Development Permits are circulated to councilors and they can provide their comments to the Development Authority (City of Calgary Planning and Development Department) if they wish. The councilors comments are only part of the permit application process. The back and forth between an applicant and the City of Calgary would be happening through the planning and development staff, not a councillor. The applicant for this permit would have gotten their refusal from the Development Authority explaining why it was refused. Druhs comments may have also been included with it.
https://www.calgary.ca/pda/pd/permit...t-process.html