Fannie Mae only purchases or securitizes mortgage loans on properties if the improvements constitute a legal conforming use of the land. However, Fannie Mae will purchase or securitize a mortgage for a property that constitutes a legal, non-conforming use of the land provided the use of the land and the appraisal analysis reflects any adverse effect that the non-conforming use has on the value and the marketability of the property. This requirement applies to all property types.
Fannie Mae will not purchase or securitize a mortgage secured by a property that is subject to certain land-use regulations, such as coastal tideland or wetland laws, that create setback lines or other provisions that prevent the reconstruction or maintenance of the property improvements if they are damaged or destroyed. The intent of these types of land-use regulations is to remove existing land uses and to stop land development, including the maintenance or construction of seawalls, within specific setback lines.
For information regarding accessory units that comply or do not comply with zoning, see B4-1.3-05, Improvements Section of the Appraisal Report.
For additional information, see B4-1.3-04, Site Section of the Appraisal Report.