1309.01 GRADING.
   (a)    Grade. The finished grade at the base of the dwelling shall conform with that of adjacent dwellings but shall not be less than twelve inches above the curb; nor less than twelve inches above the crown of the pavement of streets without curbs, provided that the Commissioner of Building and Zoning Inspection may allow a lower minimum limit where the property owner can show by plans and written statements that a lower minimum elevation can be utilized without impairing the intent or purpose of these regulations or the desirable general development of the area when considering drainage, the elevation of neighboring structures and such other considerations as pertinent therewith.
   (b)    Roadside Drainage. Along streets without curbs, front yards shall be graded so as to maintain roadside drainage. Where there is a storm sewer, yards shall be graded to have a swale not less than six inches below the pavement elevation and approximately in line with
and graded toward the nearest catch basin. Driveway tile shall be not less in size and strength than twelve inch reinforced concrete pipe.
   (c)    Protection of Adjoining Property. Whenever a lot or plot is graded to a higher or lower level than adjacent property, suitable retaining walls, curbs or other protection approved by the Commissioner of Building and Zoning Inspection shall be provided if necessary to preserve such adjacent property from any damage.
   (d)    Plan Submittal. A grading and drainage plan shall be submitted to and approved by the Safety Service Director prior to the start of any construction. All grading and required drainage shall be installed prior to the issuance of a final certificate of occupancy permit.
(Ord. 186-1992. Passed 11-23-92.)