RSA 676:4-a Revocation of Recorded Approval.

I. A subdivision plat, street plat, site plan or other approval which has been filed with the appropriate recording official under RSA 674:37 may not be revoked, in whole or in part, by the planning board, except pursuant to this section, and only under the following circumstances:
(a) At the request of, or by agreement with, the applicant or the applicant's successor in interest.
(b) When the applicant or successor in interest to the applicant has performed work, erected a structure or structures, or established a use of land, which fails to conform to the statements, plans or specifications upon which the approval was based, or has materially violated any requirement or condition of such approval.
(c) When the applicant or successor in interest to the applicant h