Upon receipt of any application for construction or development of a paper street, the Planning Department shall indicate upon the application the date of its submission. Within 21 days of the date of submission of the application, the Planning Department shall mail, by first class mail, postage prepaid, notice to all residents and property owners within a 500-foot radius of the proposed paper street construction or improvement. The notice shall include a brief description of the application and will notify the recipient of the right to request Planning Board review under § 335-11.7 and that comments concerning an application must be made, in writing, to the City Planner. In addition, the notice may include the date and time of any neighborhood meeting that is scheduled by the applicant. The Planning Department shall keep a list of persons notified and shall indicate on the list the date that the notice was mailed. Failure of a person to receive notice under this section will not invalidate any decision made by the Planning Department or the Planning Board and will not require any rehearing of the application.