Bonneville County, Idaho
Swan Valley is a city in Bonneville County, Idaho. Swan Valley adopts its own zoning, so inside its limits Swan Valley’s rules apply, not the county’s. Septic permits inside Swan Valley come from the county and state together. 5 rules below are quoted from official sources and independently re-checked, most recently on November 2, 2026. Rules for unincorporated land are on the Bonneville County page.
Land inside Swan Valley city limits. The city's documents page lists its own zoning ordinance, Ordinance 98 - Zoning.
“ordinance 98 - zoning by admin september 24, 2023 ordinance-98-zoning-recorded-signed download”
Living or sleeping in a recreational vehicle on residential property inside Swan Valley city limits
RV visitor days per calendar year: <= 40 days (visitor RVs; permit required beyond this) · RVs on property at one time: <= 4 count · consecutive days before permit: > 30 days (owner RV occupation) · setback from property line: >= 3 feet · extended RV permit fee: 50 USD
“it shall be lawful to continually park or place only one (1) rv on each property that is actively in use as sleeping or living accommodates, provided the rv is owned by the property owner.”
Swan Valley does not set these itself; the county, a health district or the state does, and they apply to every address inside its limits.
On-site wastewater (septic) systems on land inside Swan Valley city limits. Eastern Idaho Public Health, a multi-county health district, sets the disposal guidelines the city ordinance points to.
“any on-site wastewater disposal shall comply with individual and subsurface sewage disposal guidelines as determined by the eastern idaho public health department.”
On-site septic system for a new home inside Swan Valley city limits, issued by Eastern Idaho Public Health
permit validity: 2 years · renewal fee: 50 USD (renewal)
“the septic permit will be required to get a building permit from planning and zoning.”
On-site septic system installed inside Swan Valley city limits
“final inspection mandatory: it is necessary to have the system inspected by an environmental health specialist prior to covering”
We looked and could not find an official answer yet. Silence is not permission; ask Swan Valley or Bonneville County directly.
Each answer was extracted from an official source and independently re-checked against that source by a second reviewer. That is an evidence check, not legal advice. Rules change; confirm with the authority before you buy or build.
Unanswered questions are usually a sign that Swan Valley publishes no rule on the point, not that none exists. Bonneville County’s page lists the county offices to call.
Off-grid gear
Going off-grid in Swan Valley means bringing your own water and power. The kit we’d start with:
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