When a food ser­vice estab­lish­ment or retail food store is here­after con­struct­ed or exten­sive­ly remod­eled, or when an exist­ing struc­ture is con­vert­ed for use as a food ser­vice estab­lish­ment or retail food store, prop­er­ly pre­pared plans and spec­i­fi­ca­tions of such con­struc­tion, remod­el­ing or alter­ation, show­ing, lay­out, arrange­ment, and con­struc­tion mate­ri­als of work areas, and the loca­tion, size, and type of fixed equip­ment and facil­i­ties shall be sub­mit­ted to the Health Author­i­ty before such work is begun.  Fees may be charged by the Board of Health to off­set the cost of review­ing plans.  Fees are to be set by the Board of Health.