In any district where hospitals and sanitariums are permitted, the following additional requirements shall be met. The minimum site for any hospital or sanitarium shall be five acres; provided that for a hospital or sanitarium containing more than 50 beds, the minimum site shall be the greater of five acres, or the number of acres determined by the following formula:
(# of beds) x (% of total floor area at ground level) = Site Size in Acres
500
(`92 Code, § 40-3-15)