41-10 Purposes of Specific Manufacturing Districts
These districts are designed for a wide range of manufacturing and related uses which can conform to a high level of performance standards. Manufacturing establishments of this type, within completely enclosed buildings, provide a buffer between Residence (or Commercial) Districts and other industrial uses which involve more objectionable influences. New residences are excluded from these districts, except for:
(a) joint living-work quarters for artists in M1-5A and M1-5B Districts;
(b) dwelling units in M1-5M and M1-6M Districts;
(c) dwelling units in M1-1D, M1-2D, M1-3D, M1-4D and M1-5D Districts, where authorized by the City Planning Commission, both to protect residences from an undesirable environment and to ensure the reservation of adequate areas for industrial development; and
(d) dwelling units in M1-6D Districts.
These districts are designed for manufacturing and related activities which can meet a medium level of performance standards. Enclosure of such activities is not normally required except in areas along the boundary of a Residence District. No new residences or community facilities are permitted.
These districts are designed to accommodate the essential heavy industrial uses which involve more objectionable influences and hazards, and which, therefore, cannot reasonably be expected to conform to those performance standards which are appropriate for most other types of industrial development. No new residences or community facilities are permitted.