A.
Applicability of section. The following regulations shall govern the erection and alteration of buildings or structures and the use of land in the Residential District, except that they shall not apply to existing buildings or structures nor to the existing use of any building or structure but shall apply to any alteration of a building or structure for use for a purpose or in a manner substantially different from the use to which it was put before alteration. However, no building or structure qualifying as a nonconforming use shall be occupied for a greater portion of the year than such building or structure was occupied as a prior nonconforming use unless minimum lot size, setbacks, frontage, building line, and all other dimensional requirements for this district are met or a variance is granted by the Board of Adjustment. In either case, the requirements for septic systems, as stated in Chapter 391, Article I, of the Salem Code, shall be met. Additionally, no building permits or variances shall be granted that would be likely to result in an increase of the portion of the year during which a building or structure qualifying as a nonconforming use will be occupied if such increased occupation will affect adversely public health standards, water quality, sewage treatment requirements or the water quality of any lake, stream or surface water system. The restrictions of § 490-202, minimum lot size, minimum frontage, and minimum width at the building line, shall not apply to lots shown in a plat approved by the Salem Planning Board prior to the adoption of this chapter until January 1, 1981, except that if two or more lots are contiguous and are held in identical ownership and none of the lots are improved by a house, then the restrictions of § 490-202, minimum lot size, shall apply forthwith. Discontinuance of a nonconforming use for whatever reason for 12 consecutive months shall subject such property to all of the requirements of this section.
[Amended by the 1986 Town Meeting]
B.
Permitted uses. The following uses shall be permitted in the Residential District:
(1)
One-family and two-family dwellings.
(2)
Private garages, gardens and orchards incidental to residential use.
(3)
Churches, parish houses, convents, public and parochial schools, municipal buildings and libraries, including structures and uses normally incidental thereto.
(4)
Casual sales, such as garage sales, may be authorized by the Selectmen on such terms and conditions as they may impose. However, no person shall be granted permission to conduct such sales for more than 36 hours in any calendar year. Neither shall any person be granted permission to conduct such sales on more than three calendar days in any calendar year.
(5)
Family day-care homes, as defined in RSA 170-E:2, if licensed by the State of New Hampshire to operate as such under RSA 170-E.
(6)
In-law unit within a single-family dwelling.
C.
Restrictions. The following restrictions shall govern permitted and all other uses in the Residential District:
(2)
When applicable, regulations and restrictions in the following sections shall be met:
D.
Exception. The Board of Adjustment shall grant the following exceptions in the Residential District upon finding that the specified conditions exist:
[Amended by the 1995 Town Meeting]
(1)
The use of land for parks, playgrounds of a nonprofit type, other private schools and hospitals, if the Board of Adjustment shall find that all restrictions of this section are met, or an exception or variance therefor granted, and that such land is reasonably adapted to the use, and either that the use will so alleviate the burden of similar facilities in the Town or that such use will be advantageous to the health, morals, and general welfare of such numbers of persons in such degree as will outweigh any diminution of property values created thereby.
(2)
Relief from any of the provisions of this section shall be granted for a specified temporary period of time if the Board of Adjustment shall find either:
(a)
That a public emergency exists or is threatened of so serious a character as to outweigh any diminution of surrounding property values, or any fire or health dangers or any overcrowding of land or public facilities occasioned by such relief; or
(b)
That such relief from any such provisions for one year would be reasonably necessary for the ultimate use or development of land in a permitted and desirable way, other than as a one-family dwelling, and that such relief would be outweighed by the advantages available from such ultimate use of the land.
E.
Variances. In granting variances, the following shall be generally considered contrary to the spirit of this chapter in the Residential District: