The governing body or, if authorized by the governing body, the planning commission or other authorized person:
1. May require street grading, drainage provisions and lot designs as are reasonably necessary.
2. If it anticipates, based upon duly adopted ordinances and plans, that the parcels will be used for residential, commercial or industrial purposes, may require off-site access, street alignment, surfacing and width, water quality, water supply and sewerage provisions only as necessary and consistent with the existing use of any land zoned for similar use which is within 660 feet of the proposed parcel. If the proposed parcels are less than 1 acre, the governing body or, if authorized by the governing body, the planning commission or other authorized person may require additional improvements which are reasonably necessary and consistent with the use of the land if it is developed as proposed.
3. For a second or subsequent parcel map with respect to:
(a) A single parcel; or
(b) A contiguous tract of land under the same ownership,
Ê may require any reasonable improvement, but not more than would be required if the parcel were a subdivision.