42-521 - In M1 Districts LAST AMENDED 6/6/2024 M1 In the district indicated, storage of materials or products within 200 feet of a #Residence District# boundary shall be located within #completely enclosed buildings#. Beyond 200 feet of a #Residence District# boundary, open storage of materials or products may be conducted outside a #completely enclosed building#, and any enclosure requirements set forth in Sections 42-11 through 42-20 need not apply.