(2) The appraisal procedure is seriously illegal;
(3) The evidence of the appraisal conclusion is obviously insufficient;
(4) Other circumstances that cannot be used as evidence after cross-examination.
Legal Basis: "Several Provisions of the Supreme People's Court on Evidence in Civil Litigation" Article 27 If a party disagrees with the appraisal conclusion made by the appraisal department entrusted by the people's court and applies for re-appraisal, the people's court shall allow him to submit evidence to prove that there are any of the following circumstances:
(a) the appraisal institution or appraiser does not have the relevant appraisal qualifications;
(2) The appraisal procedure is seriously illegal;
(3) The evidence of the appraisal conclusion is obviously insufficient;
(4) Other circumstances that cannot be used as evidence after cross-examination.
If the conclusion of defect appraisal can be solved by supplementary appraisal, re-appraisal or supplementary cross-examination, it will not be re-appraised.