Twin Falls County, ID Property Maintenance: Property Blight (2026)

County Code section 8-9-16, Nuisance, is the general enforcement tool Twin Falls County uses against hazardous or blighted property in the unincorporated area outside the cities' areas of impact. The section defines a nuisance broadly as anything generally objectionable to the public that may be considered a safety, fire, health or traffic hazard, and it holds responsible any person who creates, causes, maintains or knowingly allows a hazardous condition to exist on property they own, rent, lease or otherwise control, with successive owners on the hook if they fail to abate a hazard a prior owner created.

The Twin Falls County Prosecutor, or a deputy prosecutor, can file an action to enjoin or abate the condition and pursue civil or criminal penalties. Before that, the code requires a written notice served on the owner, by personal service or certified mail where possible or posted on the property if not, describing the hazard and giving fifteen days to abate it; the notice also warns that court and abatement costs can be assessed against the owner. If the hazard poses an immediate and emergent threat to public health, safety, welfare or the environment, the county can skip notice and summarily abate the condition, billing the owner afterward.

An owner who does not abate in time can be sued civilly or prosecuted criminally, and any abatement costs the county pays, including contractor and investigation costs, attach as a lien on the property if unpaid. Each day the hazardous condition continues counts as a separate offense, and interfering with the officer investigating the property, including tearing down a posted notice within a hundred twenty hours, is itself a misdemeanor under the same section.