Building permits, zoning and land rules in Teton County, Idaho

Yes. Teton County requires a building permit before erecting, constructing, beginning construction on or altering any type of building¹. Applications require county forms, plans, supporting documents and the applicable fee, and a building permit expires three years after issuance unless extended¹. The county publishes a fee estimator, but the estimate excludes impact fees and the final permit and plan-review charges are calculated after a complete application³. The Building Department uses the 2018 I-Codes with county and state amendments³. Idaho separately requires permits for electrical, plumbing and HVAC work, with the administering authority depending on project location¹¹. An owner working on the owner's own Idaho land may qualify for an exemption from contractor registration when there is no intent to sell within 12 months, but that exemption does not waive applicable county or trade permits and inspections^9,10.

The Teton County Building Department issues county building permits and checks construction against adopted codes and the Flood Control Ordinance³. Contact the department at 208-776-8171 or visit 150 Courthouse Drive - Room 107 in Driggs³. Before submitting construction plans, contact Teton County Planning and Zoning at (208) 776-8240 because that office handles development, zoning and land-use questions². Planning and Zoning determines how the proposed use fits the parcel's district rules, while the Building Department handles construction-code compliance^2,3. The county publishes an online permit-fee estimator that excludes impact fees and is not binding, and the Building Department calculates the final charges after a complete application; payments over $5,000 must be made by certified check³. Planning and Zoning also lists pre-application meetings, land-use permitting and variance requests among its services². We could not confirm a complete general inspection schedule or certificate-of-occupancy rule, so ask the Building Department for the inspection milestones and final approval required before occupancy³.

Yes. Teton County administers zoning classifications, setbacks, subdivisions, land-use permits and code enforcement². The county's zoning map identifies a parcel's classification, while permitted uses and dimensional standards depend on the applicable district and land-use table¹². Minimum lot size, building height, setbacks, lot coverage and minimum dwelling size therefore cannot be reduced to one countywide number². Ask Planning and Zoning for parcel-specific verification before relying on a listing description or designing a site plan². Subdivision development receives county review, and Eastern Idaho Public Health reviews new subdivisions for wastewater-disposal suitability¹³. Special rules apply in the unincorporated Victor Area of Impact, which has three zones: AOI-2.5, AOI-20 and AOI-10⁷. Setbacks there are 30 feet front and sides and 40 feet rear in AOI-2.5 and AOI-20, and 20 feet front and sides and 30 feet rear in AOI-10⁷. Accessory dwellings in that area are limited by parcel size, parking, setbacks and wastewater capacity⁷. Those standards are not countywide rules, and municipal rules may also apply inside incorporated cities².

Eastern Idaho Public Health, not the county Building Department, administers septic permits and inspections for Teton County, including inside its cities⁶. A valid installation permit is required to construct, modify or repair an individual or subsurface sewage-disposal system, with limited exceptions for temporary portable non-discharging systems and certain non-expanding repairs⁴. Portable non-discharging systems may be used only on a temporary basis, so they are not a substitute for a permitted system on a home site⁴. Contact the Teton County office at (208) 522-8066 or visit 820 Valley Centre Drive in Driggs⁵. Submit the application, plot plan, building plan and fee, then arrange the onsite evaluation before issuance⁶. The individual-system permit fee is $900; the permit is valid for 2 years and renewal costs $50⁶. Final inspection is mandatory before covering the system, and Eastern Idaho Public Health requires 48 hours' notice⁶. Only 10.3% of mapped county soils lack severe limitations for a conventional drain field, so evaluate wastewater feasibility early¹⁴.

We could not confirm a countywide rule authorizing long-term RV occupancy or temporary camping on private land in Teton County. Ask Planning and Zoning for the parcel-specific answer before buying land or moving an RV onto it². In the Victor Area of Impact, a short-term rental must be a legal residential dwelling, requires a business permit and wastewater-capacity verification, and may include camping units or RVs that the renter brings, never ones the owner supplies, within the permit's tenant limit⁷. That narrow rule does not establish general residential RV permission elsewhere. Construction or alteration of a tiny home requires a county building permit, but building-code compliance alone does not establish permission for the use or occupancy^1,2. Confirm the zoning district and sanitation plan with Planning and Zoning; any onsite sewage system still needs the applicable wastewater approval^2,4.

1. Use the county zoning map, then ask Teton County Planning and Zoning to confirm the parcel's district and required land-use approvals^2,12.

1. Submit the application, plot plan, building plan and fee to Eastern Idaho Public Health, then arrange the onsite septic evaluation⁶.

1. If the project uses a well, obtain the IDWR drilling permit before drilling and use an IDWR-licensed driller⁸.

1. Submit county forms, plans and supporting documents to the Building Department; use the published fee estimator for budgeting and pay the final assessed charges before work begins^1,3.

1. Arrange the applicable electrical, plumbing and HVAC permits through the authority administering Idaho's trade-permit program at the site¹¹.

1. Ask the Building Department for its inspection schedule, and give Eastern Idaho Public Health 48 hours' notice for the mandatory septic inspection before covering the system^3,6.

Confirm the zoning classification and development eligibility with Teton County Planning and Zoning before treating a parcel as buildable^2,12. Test septic feasibility early because only 10.3% of mapped soils lack severe limitations for a conventional drain field¹⁴. If a private well is planned, budget for an IDWR drilling permit and a licensed driller⁸. A driveway connecting to an Idaho state-highway right-of-way requires an ITD encroachment permit¹⁵. Development must conform to the county Flood Control Ordinance, although the available rule does not identify every mapped-area threshold or variance standard; ask the Building Department how it affects the site³. A manufactured home needs an installation permit before placement, and additions or alterations remain subject to building-code requirements¹.