A grant of a variance or special exception by the Hudson Zoning Board of Adjustment shall be valid if exercised within a period of two years following the vote of approval by the Zoning Board of Adjustment.

If subsequent Planning Board action is needed before work or activity may be commenced pursuant to the variance or special exception, the applicant or his/her successor in interest must gain application acceptance by the Hudson Planning Board within six months of the ZBA vote of approval regarding the granting of the special exception or variance in order to stay the two-year limitation period set forth in Subsection A above. The term "application acceptance" is defined pursuant to Planning Board regulation and the New Hampshire Revised Statutes Annotated.

For variances or special exceptions which require subsequent Planning Board review and which have gained application acceptance within six months of the original variance or special exception vote of approval, the variance or special exception shall be valid for a period of two years from the Planning Board vote to give conditional or final approval to the applicant's plan, unless active and substantial development or building has begun on the site in accordance with the terms of the approved plan. If conditional approval precedes final approval, the two-year time period shall run from the vote of conditional approval.

For variances or special exceptions which do not require subsequent Planning Board review, all variances and special exceptions shall expire within two years of the vote of approval as specified in Subsection A above, unless active and substantial development or building has begun on the site in accordance with the special exception, variance or building permit or the variance or exception granted from the terms of this chapter has been otherwise exercised by the applicant or successor in interest.

If an applicant who has been granted a variance or special exception fails to gain Planning Board application acceptance within six months of the vote of approval for the special exception or variance, the applicant shall not gain any exemption for the running of the two-year time period which governs the grant of a variance or special exception.

Any request for an extension or renewal of a variance or special exception shall follow the same procedure required for the original appeal: the applicant must fill out a new application, pay a new set of fees in accordance with the fee policy in effect at the time and then bring the matter before the ZBA for a full hearing and review in accordance with the New Hampshire Revised Statutes Annotated, this chapter and the bylaws of the Hudson Zoning Board of Adjustment. Extensions and renewals shall be subject to the statutes, this chapter, regulations and ZBA bylaws in effect at the time of the renewal/extension application. Extensions and renewals are disfavored. A renewal/extension application shall be made no sooner than 90 days prior to the date of expiration and no later than 30 days prior to the variance or special exception expiration.

The Zoning Board of Adjustment may impose reasonable fees upon applicants for the expense of consulting services, investigative studies, review of documents and any other matters that may be required for a particular application. Any such fee shall be subject to the provisions of RSA 673:16.