A. 
Multiple-family dwellings.
B. 
Hospital and clinics other than correctional institutions.
C. 
Private clubs, fraternities, sororities, lodges, excepting those the chief activity of which is a service customarily carried on as a business.
D. 
Community centers not conducted for profit.
E. 
All principal uses permitted and as regulated in the R-1 and R-2 Residence Districts.
In the R-3 District, no building shall be hereafter erected or structurally altered to exceed 40 feet or three stories in height, except churches, schools, hospitals and clinics, which may extend to a height of 50 feet. All other height and yard requirements shall be as set forth for R-2 Districts in Article III of this chapter.
Every building hereafter erected or structurally altered shall be provided with a minimum of 5,000 square feet of lot area. For multiple-family dwellings, 1,500 square feet per family or dwelling unit shall be provided. This regulation shall not apply to hotels or apartment buildings where no cooking is done in any individual room, suite or apartment. Each lot or portion thereof on which any building shall be erected or structurally altered shall contain a minimum of 200 square feet parking area per family, together with sufficient area for proper access thereto, said parking area to be included in required lot area and not in addition thereto.
See Article VIII of this chapter.