Subd. 2. Permitted uses. Permitted uses in a B-W district are:

   (a)   all permitted uses allowed in B-1, B-2, B-3, and B-4 districts except as hereinafter modified;

   (b)   animal hospitals and clinics but not including kennels;

   (c)   automobile sales;

   (d)   battery sales and rebuilding;

   (e)   building materials establishments;

   (f)   commercial greenhouse;

   (g)   fuels, but not including service stations;

   (h)   lumber yards;

   (i)   monument sales;

   (j)   plumbing, showrooms and shops;

   (k)   print shops;

   (l)   sign shops;

   (m)   trailer sales;

   (n)   warehousing and storage, but not including junk yards;

   (o)   wholesale distribution;

   (p)   wholesale meat processing;

   (q)   fence sales and service.

   Subd. 3. Permitted accessory uses. Permitted accessory uses in a B-W district are:

   (a)   all accessory uses allowed in B-1, B-2, B-3, and B-4 districts except as hereinafter modified.

   Subd. 4. Conditional uses. The area described in this subdivision require a conditional use permit based upon procedures set forth in and regulated by subsection 535.01 of this code and are the following:

   (a)   All conditional uses allowed in B-1, B-2, B-3 and B-4 districts except as hereinafter modified:

      (1)   no residential dwelling units.

   (b)   Research and testing laboratories provided that:

      (1)   the ventilation system shall be designed so that no odor or organisms will spread to the outside air;

      (2)   conformance with the performance standards as outlined in subsection 510.25 of this code;

      (3)   additional conditions may be imposed in certain instances to protect the health, safety and general welfare of the residents of the city;

   (c)   Motorcycle, snowmobile, truck in excess of 9,000 pounds gross weight, and similar motorized machines or equipment sales and service provided that:

      (1)   all sales and servicings are conducted within a structure;

      (2)   provisions are made to control and reduce noise;

      (3)   no outside storage except as allowed in compliance with subsection 520.09, subdivision 4(e) of this code;

      (4)   such use is not within 100 feet of a residential use or residential district;

      (5)   the location of such use will not encourage motorcycle traffic through a residential district;

      (6)   the provisions of subsection 535.01, subdivision 2(e) of this code are considered and satisfactorily met.

   (d)   Automobile repair - major, provided that:

      (1)   no outside storage except as allowed in compliance with section 520.09, subdivision 4(e) of this code;

      (2)   all servicing is conducted within a structure;

      (3)   provisions are made to control and reduce noise;

      (4)   adequate parking is provided in compliance with subsection 510.17 of this code;

      (5)   passenger vehicles and trucks in an inoperative state or unlicensed and unregistered shall not be parked or stored in an outside location for a period exceeding 30 days;

   Subd. 5. Lot requirements and setback requirements. The following minimum requirements shall be observed in a B-W district subject to additional requirements, exceptions and modifications set forth in this code.

   (a)   Lot area: no minimum.

   (b)   Lot width: no minimum.

   (c)   Setbacks:

      (1)   front yard: zero

      (2)   side yard: zero unless:

         (i)   a side yard that contains a driveway shall be at least 15 feet if there is one-way traffic movement or at least 20 feet if there is two-way traffic movement;

         (ii)   a side yard that directly abuts a residential use or residential district shall be increased ten additional feet over the minimum stated above and shall be screened and landscaped in compliance with subsection 510.25, subdivision 2 of this code.

      (3)   Rear yard: 12 feet and if abutting a residential use or residential district, shall be screened and landscaped in compliance with subsection 510.25, subdivision 2 of this code.

   Subd. 6. Building requirements:

   (a)   Height: No structure shall exceed three stories or 40 feet except as provided in subsection 510.15, subdivision 1 of this code.