Except as otherwise provided in this subchapter, an applicant must comply with current ordinances, rules and regulations in effect on the date the first application for a project is filed with the city. Those ordinances, rules and regulations govern subsequent permits for the project filed within two years from the date the first application is filed. Subsequent permit applications filed more than two years after the date the first application is filed with the city shall be governed by the ordinances, rules and regulations in effect on the date the subsequent application is filed.