Appendix D, page 3 -- FHA guidelines require that a site be rejected if the property being appraised is subject to hazards, environmental contaminants, noxious odors, offensive sights or excessive noises to the point of endangering the physical improvements or affecting the livability of the property, its marketability, or the health and safety of its occupants.

If the condition is clearly a health and safety violation, contact the lender for further instructions before completing the appraisal. The lender must clear the condition and may require an inspection or reject the property. If there is any doubt as to the severity, report the condition and submit the completed report.  For those conditions that cannot be repaired, such as site factors, the appraised value is based upon the existing conditions.