A. Libraries;

B. Public schools, day care centers, and churches;

C. Nursing homes, hospitals and sanitariums, except for inebriates and persons suffering from mental diseases;

D. Commercial nurseries or greenhouses on special permit not exceeding ten years;

E. Telephone exchanges, electric substations and similar installations for public service;

F. Retirement homes;

G. Municipal buildings, senior centers, community centers;

H. The office of a physician, dentist or other professional person when located in his or her dwelling or an existing residential structure located on an arterial street;

I. Bed and breakfast guesthouse, when accessory to the permanent residence of the operator. Preference shall be given to facilities in historic structures.