For a building containing a museum listed under Use Group III(B), in an M1-5 District, on a zoning lot over which the High Line (as defined in Section 98-01) passes, the Commission may modify height and setback regulations, provided that such modifications:

1. provide a better distribution of bulk on the zoning lot;
2. result in a better relationship of the building to open areas including the High Line, adjacent streets and surrounding properties;
3. provide adequate light and air for buildings on the zoning lot and do not adversely affect adjacent zoning lots by unduly restricting access to light and air to surrounding streets and properties; and
4. result in a building containing a museum use that facilitates the public’s use and enjoyment of the High Line.

The Commission may prescribe additional conditions and safeguards to minimize adverse effects on the character of the surrounding area.