No building, other structure or land shall hereafter be used or occupied, and no building or other structure or parts thereof shall be erected, relocated, altered, extended or enlarged, unless in conformity with the use, height, area and other pertinent regulations specified herein for the district in which such building, other structure or land is located and in conformity with all other regulations of this chapter.

No lot area shall be reduced or diminished so that the yards or other open space thereon shall be less than prescribed by this chapter, nor shall the density of population be increased in any manner, except in conformity with area requirements herein established. If, at the time of the adoption of this chapter, or of any subsequent amendments increasing the area or open space requirements, the lot area or required open spaces are less than the minimum required by this chapter, such area or open space shall not be further reduced.

No yard or other open space provided on one lot for the purpose of complying with the provisions of this chapter shall be considered as providing a yard or open space required on any other lot.

The regulations of this chapter shall not be considered to limit or interfere with the dedication, development or use of any land or building for public parks, other public recreation areas or public schools required for compulsory education or with the use of land or buildings owned by the State of New York, the County of Erie or the Town of Boston and used for governmental purposes or with the construction, installation, operation and maintenance for public utility purposes of water or gas pipes, mains, standpipes, electric power transmission or distribution lines, telephone or telegraph appurtenances or with any highway, railroad right-of-way or mass transit right-of-way existing or hereafter authorized by the State of New York, the County of Erie or the Town of Boston.

These exceptions, however, shall not be interpreted to permit yards, garages or other buildings for service or storage by said public utilities which are otherwise permitted by this chapter in appropriate districts. Installation of standpipes, reservoirs or elevated water tanks shall be permitted only upon approval of the Town Board as to location, type of structure, effect upon adjacent properties and proximity to similar use areas. The Town Board may prescribe conditions which it deems necessary or desirable and may require a site plan of the proposed installation. Application for such use shall be referred to the Town Planning Board for its recommendation, which shall be advisory only.

Building permits. Nothing contained in this chapter shall prevent the construction of a building or other structure for which a building permit has been lawfully issued and which is made nonconforming by this chapter or subsequent amendments thereto, provided that either:

Special use permits and variances. Special use permits or variances in effect prior to the effective date of this chapter and which are not permitted by this chapter as of right in the district in which located shall be subject to all the conditions and limitations placed thereon when such special use permit or variance was granted and to the provisions contained herein pertaining to nonconforming uses (see Article XXVII). Any such permitted use, special use permit or variance shall become null and void unless exercised within one calendar year from the effective date of this chapter.

In their interpretation and application, the provisions of this chapter shall be considered to be minimum requirements to implement the general goals and specific purposes of this chapter as set forth in § 123-5.

Whenever any provision of this chapter is at variance or conflict with any other provision of this chapter or any other statute, local law or regulation covering any of the same subject matter, the most restrictive provision or the one imposing the higher standard shall govern.

If a court of competent jurisdiction finds any provision of this chapter invalid in whole or in part, the effect of such decision shall be limited to those provisions which are expressly stated in the decision to be invalid, and all other provisions of this chapter shall continue to be separately and fully in effect.

If a court of competent jurisdiction finds the application of any provision of this chapter to any building, other structure or tract of land to be invalid, in whole or in part, the effect of such decision shall be limited to the person, property or situation involved in the controversy, and the application of any such provision to any other person, property or situation shall not be affected.