Application number C 220306 ZMX (521 East Tremont Avenue Rezoning) submitted by M521 Tremont LLC pursuant to Sections 197-c and 201 of the New York City Charter for the amendment of the Zoning Map, Section No. 3d: eliminating a Special Mix Use District (MX-14), changing from an R6A District to a C4-4D District, changing from an C4-5X District to a C4-4D District, and changing from an M1-4/R7A District to a C4-4D District. Borough of the Bronx, Community District 6, Council District 15.