Conditions. The Board of Appeals shall, in the granting of both use variances and area variances, have the authority to impose such reasonable conditions and restrictions as are directly related to and incidental to the proposed use of the property. Such conditions shall be consistent with the spirit and intent of this chapter, and shall be imposed for the purpose of minimizing any adverse impact such variance may have on the neighborhood or community.
Expiration of approval. Unless construction or use is commenced within one calendar year from the date of the granting of a variance, such variance shall become null and void without further hearing or action by the Board of Appeals.