Unincorporated Shoshone County, Idaho requires building permits for most construction, additions, alterations, conversions and improvements, and manufactured or mobile homes need a setting permit12. County zoning also applies outside city boundaries34. Panhandle Health District issues the septic permits56.
At a glance
- Building permit
- Required for most construction in unincorporated areas12
- Zoning
- County zoning applies outside incorporated city boundaries34
- Septic
- Panhandle Health District permit required for a new system or new location57
- RV living
- Residential occupancy on private land not confirmed; ask County Planning & Zoning8
- Tiny home
- Occupancy rule not confirmed; building and zoning requirements still apply24
- Owner-builder
- No permit exemption confirmed; ask County Planning & Zoning before starting work98
- Minimum lot size
- Varies by zoning district10
- Well
- IDWR drilling permit required before drilling11
Who to call
Planning & zoning
Shoshone County Planning & Zoning Administration
Building permits, zoning, land-use applications and inspections in unincorporated Shoshone County
700 Bank Street, Suite 25, Wallace, ID 83873
Septic permits
Panhandle Health District Environmental Health
Septic permits and records for Shoshone County
8500 N. Atlas Rd., Hayden, ID 83835
Floodplain permits
Shoshone County Floodplain Administration
Floodplain development permits in Shoshone County special flood hazard areas
700 Bank Street, Suite 25, Wallace, ID 83873
Roads & driveways
County roads and approach permit information
700 Bank Street, Suite 35, Wallace, ID 83873
Contact details are copied from each office’s official page and were checked against it on September 27, 2026.
Do you need a building permit in Shoshone County, Idaho?
Yes. Unincorporated Shoshone County requires a separate building permit for covered residential, commercial, industrial, agricultural and public buildings, including construction, enlargement, alteration or conversion2. The county says permits are required for most construction, additions, alterations, conversions and improvements, and all manufactured or mobile homes need a setting permit18. Shoshone County has adopted the 2018 International Code Compliance Regulations for its building-code program, including local snow-load and frost-depth requirements12. A qualifying agricultural building may be exempt from the adopted building codes only after the Assessor grants the required agricultural classification, but the building remains subject to county zoning, floodplain and placement requirements13. The county publishes a building-fee schedule effective March 24, 2026, so confirm the current project fee with Planning & Zoning before applying14.
Who handles Shoshone County building permits, and how do you reach them?
Shoshone County Planning & Zoning Administration handles building, planning and floodplain work for land outside city boundaries84. The office is at 700 Bank Street, Suite 25, Wallace, ID 83873; call (208) 752-8891 or email [email protected]8. For an inspection question, the county page also lists (208) 786-44058. Incorporated cities administer their own planning, so a parcel inside a city should go to that city's planning office rather than the county15. Electrical, plumbing and mechanical permits are separate state permits, and Idaho requires a permit when that trade work is performed16. We could not confirm a general county inspection schedule or certificate-of-occupancy rule; ask Planning & Zoning what inspections and final approvals apply to the proposed project8.
Does Shoshone County have zoning?
Yes. Shoshone County administers zoning outside incorporated city boundaries, while each incorporated city runs its own planning program415. The unincorporated county has 14 zone districts and 2 overlay districts, each with its own allowed uses and standards, and the county says its zoning map is not available online17. Call Planning & Zoning with the property address or parcel number to obtain the zoning designation and allowed uses before relying on a listing description8. Minimum lot area, setbacks, building height and lot coverage vary by district10181920. For example, the county chart identifies a 2-acre minimum in Suburban Residential and a 7,700-square-foot minimum in several other listed districts, but those examples do not answer the requirement for every parcel10. Land divisions are regulated separately under the county subdivision rules21.
How do septic permits work in Shoshone County?
Panhandle Health District, not Shoshone County Planning & Zoning, issues septic permits for Shoshone County56. A permit is required for a new subsurface sewage system or a new system location, and approval considers sewage flow, house and well locations, surface water, groundwater limitations, altered soil, neighboring structures, land use and soil type7. Call Environmental Health at (208) 783-0707 or email [email protected]22. The USDA soil survey rates only about 0.4% of county soils as free of severe limitations for a conventional drain field, so make the health district's site review an early contingency rather than assuming a standard system will fit23. Permit applications and issued septic permits are each valid for 1 year7. Idaho requires a final installation inspection before a system receives wastewater, with the public health district inspecting individual systems24.
Can you live in an RV or tiny home on land in Shoshone County?
We could not confirm a published Shoshone County rule that specifically authorizes long-term RV living, temporary camping on private land or tiny-home occupancy. County zoning still controls allowed uses outside city limits, and Planning & Zoning can identify the parcel's district and allowed uses from its address or parcel number48. A tiny home that is a building used for human habitation falls within the county permit rule for covered residential construction in unincorporated areas2. A manufactured or mobile home needs a county setting permit, and every manufactured-home installation must be inspected and approved by the authority having jurisdiction before occupancy125. We also could not confirm a countywide minimum dwelling size or an owner-builder permit exemption. Before buying a small dwelling or moving an RV onto a parcel, give Planning & Zoning the exact parcel number and ask about the proposed use, duration of occupancy, sanitation and permit path8.
Building a home in Shoshone County: the steps, in order
- Confirm whether the parcel is outside city limits, then ask County Planning & Zoning for its zoning district and allowed uses48.
- Ask Panhandle Health District to evaluate the site and issue the required septic permit before fixing the house location722.
- If the project uses a well, obtain the Idaho Department of Water Resources drilling permit before drilling11.
- Prepare the completed county application, site plan, 2 sets of plans and applicable addendum or checklist; processing does not begin until the required package is verified and submitted26.
- Obtain separate Idaho electrical, plumbing and mechanical permits for those trades16.
- If development is in a special flood hazard area, secure the county floodplain development permit2728.
- Ask Public Works about the approach permit for access from a county road, or obtain an ITD encroachment permit if the driveway connects to a state highway2930.
What should you check before buying land in Shoshone County?
Start with the parcel's jurisdiction and zoning: county rules apply outside city boundaries, and district standards determine allowed uses, lot area, setbacks, height and coverage410181920. Treat septic feasibility, slope and access as linked due-diligence questions because only about 0.4% of soils rate free of severe conventional-drain-field limits and just 9.8% of county land is at a 15% slope or less2331. Check the flood map and permit status with the Floodplain Administration because development in a special flood hazard area requires a permit2728. Verify whether access meets the county approach process or the state-highway encroachment rule2930. For carrying costs, the countywide effective property-tax rate is about 0.6%, with a median annual bill near $1,2733233. About 73.9% of Shoshone County is federal land, so confirm surveyed boundaries and legal access rather than assuming adjacent public ground provides an entrance34.
Watch-outs
- The county zoning map is not online; call Planning & Zoning with the property address or parcel number for its district and allowed uses178.
- Only about 0.4% of Shoshone County soils rate free of severe limitations for a conventional septic drain field, so obtain a site evaluation before committing to a house location23.
- RV living, private-land camping, tiny-home occupancy and minimum dwelling size could not be confirmed; ask Planning & Zoning about the exact parcel and proposed use8.
Sources
- Planning & Zoning | Shoshone County Idaho (2026 county census)
- Planning & Zoning | Shoshone County Idaho, quoted and re-checked
- Planning & Zoning | Shoshone County Idaho (2026 county census)
- Planning & Zoning | Shoshone County Idaho, quoted and re-checked
- Panhandle Health District - Septic Permits & Records (2026 county census)
- Septic Permits & Records – Panhandle Health District, quoted and re-checked
- Septic Permits & Records – Panhandle Health District, quoted and re-checked
- Shoshone County Planning & Zoning Administration (shoshonecounty.id.gov)
- (2026 county census)
- Shoshone County Building Permit/Application, quoted and re-checked
- Wells Overview, quoted and re-checked
- Planning & Zoning | Shoshone County Idaho, quoted and re-checked
- Planning & Zoning | Shoshone County Idaho, quoted and re-checked
- Planning & Zoning | Shoshone County Idaho, quoted and re-checked
- Planning & Zoning | Shoshone County Idaho, quoted and re-checked
- Frequently Asked Questions (FAQs) - Division of Occupational and Professional Licenses (Idaho statewide rule), quoted and re-checked
- Planning & Zoning | Shoshone County Idaho, quoted and re-checked
- Shoshone County Building Permit/Application, quoted and re-checked
- Shoshone County Building Permit/Application, quoted and re-checked
- Shoshone County Building Permit/Application, quoted and re-checked
- Planning & Zoning | Shoshone County Idaho, quoted and re-checked
- Panhandle Health District Environmental Health (panhandlehealthdistrict.org)
- Share of soils without severe limits for a conventional septic drain field (USDA SSURGO): Bolthole Index county data
- IDAPA 58.01.03 Individual/Subsurface Sewage Disposal Rules (Idaho statewide rule), quoted and re-checked
- Building Archives - Division of Occupational and Professional Licenses (Idaho statewide rule), quoted and re-checked
- Shoshone County Building Permit/Application, quoted and re-checked
- Floodplain Information & Helpful Links, quoted and re-checked
- Shoshone County Floodplain Administration (shoshonecounty.id.gov)
- Shoshone County Public Works (shoshonecounty.id.gov)
- Types of Right-of-Way Encroachment Permits (Idaho statewide rule), quoted and re-checked
- Share of land at 15% slope or less: Bolthole Index county data
- Effective property tax rate: Bolthole Index county data
- Median property tax bill: Bolthole Index county data
- Federal land share: Bolthole Index county data
Written September 27, 2026 from the rules quoted below, each taken from an official source and re-checked by an independent reviewer. This is research, not legal advice: rules change, so confirm with the office before you buy or build.