To hear and decide a petition with respect to particular land or structures for a variance from the terms of this chapter, where the Board specifically finds that owing to circumstances relating to soil conditions, shape or topography of such land or structures and especially affecting such land or structures, but not affecting generally the zoning district in which it is located, a literal enforcement of the provisions of this chapter would involve substantial hardship, financial or otherwise, to the petitioner or appellant and that desirable relief may be granted without substantial detriment to the public good and without nullifying or substantially derogating from the intent or purpose of this chapter. The Board of Appeals may impose conditions, safeguards and limitations, both of time and use, including the continued existence of any particular structures, but excluding any condition, safeguards or limitation based upon the continued ownership of the land or structure to which the variance pertains by the applicant, petitioner or any owner. If the rights authorized by a variance are not exercised within one year of the date of the authorization, they shall lapse and may be reestablished only after a new notice and hearing.

See Zoning Variances for details.
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