This is PermitBase’s published record for Lewiston as of 2026-07-04. It has since been superseded — see the current record. A historical record reflects what PermitBase had verified at that time; it may not capture a real-world change the jurisdiction had made but PermitBase had not yet verified, and it includes any errors we later corrected. Snapshots are never edited retroactively.
Lewiston building permits
VerifiedLewiston, Idaho — as published 2026-07-04.
Verified 2026-07-04 · Source
Codes adopted
2018 International Building Code (IBC), plus 2021 IBC Mass Timber provisions, adopted January 2025 for commercial construction — City of Lewiston Current Codes page (Lewiston City Code Sec. 10-1, Code Adoption).2018 International Residential Code (IRC), adopted January 2021, for one- and two-family dwellings and townhouses — City of Lewiston Current Codes page.2018 International Energy Conservation Code (IECC), adopted January 2021 — City of Lewiston Current Codes page.2018 International Mechanical Code (IMC), adopted January 2021 — City of Lewiston Current Codes page.Idaho State Plumbing Code, based on the 2015 Uniform Plumbing Code (UPC), adopted January 2021 — City of Lewiston Current Codes page.2018 International Fire Code (IFC), adopted January 2021 — City of Lewiston Current Codes page.2023 National Electrical Code (NEC), adopted January 2025 — City of Lewiston Current Codes page.2018 International Existing Building Code (IEBC), adopted January 2021 — City of Lewiston Current Codes page.The Current Codes page states local amendments to the adopted codes exist and directs readers to Lewiston City Code Sec. 10-1 (Code Adoption) for the specific amendment text; the amendments themselves are not individually enumerated on the Current Codes web page.
Permit types & fees
Residential New Home Building Permit (New Single Family Dwelling/Duplex)
VerifiedRequired for construction of new one- and two-family dwellings in the City of Lewiston, reviewed against the 2018 IRC and 2018 IECC as locally adopted and administered by the City of Lewiston Building Services division of Community Development. Applications are submitted via the online permit portal (GovWell) or through Building Services staff.
Verified 2026-07-04 · Source
Requirements
- Building permit required whenever a building or structure regulated by the code is altered, constructed, converted, demolished, enlarged, erected, improved, moved, removed, or repaired — City of Lewiston Permits Needed page
- Plans reviewed against the 2018 IRC and 2018 IECC as adopted by the City of Lewiston
- Building valuation calculated per IBC Section 109.3 as adopted and amended by the City of Lewiston, per the FY2026 Fee Schedule
- Separate electrical, plumbing, and mechanical permits required for all trade work
Required documents
- RequiredBuilding Permit ApplicationSubmitted via the City of Lewiston's online permit portal (GovWell) or through Building Services at cd@cityoflewiston.org / (208) 746-1318 option 1.
- RequiredPlan Review Documents ChecklistCity of Lewiston Applications & Resources page checklist of required plan-review submittal documents.
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Residential Building Permit Fee — valuation up to $500 | $28.14 | City of Lewiston FY2026 Fee Schedule (Resolution 2025-39, effective 10/1/2025), Schedule F. |
| Residential Building Permit Fee — valuation $501 to $2,000 | $28.14 for the first $500 plus $3.95 for each additional $100 or fraction thereof | City of Lewiston FY2026 Fee Schedule. |
| Residential Building Permit Fee — valuation $2,001 to $25,000 | $87.61 for the first $2,000 plus $17.19 for each additional $1,000 or fraction thereof | City of Lewiston FY2026 Fee Schedule. |
| Residential Building Permit Fee — valuation $25,001 to $50,000 | $483.01 for the first $25,000 plus $12.50 for each additional $1,000 or fraction thereof | City of Lewiston FY2026 Fee Schedule. |
| Residential Building Permit Fee — valuation $50,001 to $100,000 | $795.69 for the first $50,000 plus $8.66 for each additional $1,000 or fraction thereof | City of Lewiston FY2026 Fee Schedule. |
| Residential Building Permit Fee — valuation $100,001 to $500,000 | $1,228.78 for the first $100,000 plus $6.92 for each additional $1,000 or fraction thereof | City of Lewiston FY2026 Fee Schedule. |
| Residential Building Permit Fee — valuation $500,001 to $1,000,000 | $4,000.72 for the first $500,000 plus $5.81 for each additional $1,000 or fraction thereof | City of Lewiston FY2026 Fee Schedule. |
| Residential Building Permit Fee — valuation $1,000,001 and up | $6,910.39 for the first $1,000,000 plus $4.66 for each additional $1,000 or fraction thereof | City of Lewiston FY2026 Fee Schedule. |
| Building Permit Plan Review Fee | 65% of the Building Permit Fee | City of Lewiston FY2026 Fee Schedule, Schedule F. |
| Electrical Permit — New Single Family Dwelling (up to 1,500 sq ft) | $216.56, plus $72.20 for each additional 1,000 sq ft or portion thereof | City of Lewiston FY2026 Fee Schedule, Schedule F — separate permit from the building permit. |
| Mechanical Permit — New Single Family Dwelling (up to 1,500 sq ft) | $216.56, plus $72.20 for each additional 1,000 sq ft or portion thereof | City of Lewiston FY2026 Fee Schedule, Schedule F — separate permit from the building permit. |
| Plumbing Permit — New Single Family Dwelling (up to 1,500 sq ft) | $216.56, plus $72.20 for each additional 1,000 sq ft or portion thereof | City of Lewiston FY2026 Fee Schedule, Schedule F — separate permit from the building permit. |
| New Duplex — Electrical, Mechanical, and Plumbing Permit (each trade) | $433.11 | City of Lewiston FY2026 Fee Schedule, Schedule F. |
Electrical Permit
VerifiedRequired for all residential and commercial interior and exterior electrical work in the City of Lewiston, per the adopted 2023 NEC. Issued by City of Lewiston Building Services, separate from any trade permit issued by Nez Perce County for unincorporated-area work.
Verified 2026-07-04 · Source
Requirements
- Required for all residential and commercial interior and exterior electrical work — City of Lewiston Permits Needed page
- Compliance with the 2023 NEC as adopted by the City of Lewiston (January 2025)
Required documents
- RequiredElectrical Permit ApplicationSubmitted via the City of Lewiston's online permit portal (GovWell) or through Building Services.
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Temporary Construction Services Only (200 amp or less, one location) | $72.20 | City of Lewiston FY2026 Fee Schedule, Schedule F, Electrical Permit Fees. |
| New Single Family Dwelling (up to 1,500 sq ft, all building wiring) | $216.56, plus $72.20 for each additional 1,000 sq ft or portion thereof | City of Lewiston FY2026 Fee Schedule. |
| New Duplex | $433.11 | City of Lewiston FY2026 Fee Schedule. |
| Existing Residence / Modular, Manufactured, or Mobile Home / Detached Shop (one circuit included) | $72.20, plus $11.10 for each additional branch circuit, up to the maximum of the corresponding square footage fee | City of Lewiston FY2026 Fee Schedule. |
| Residential Spas, Hot Tubs, Hydro Massage Tubs, and Swimming Pools | $72.20 per inspection | City of Lewiston FY2026 Fee Schedule. |
| Signs (per sign) / Outline Lighting (per occupancy) | $72.20 | City of Lewiston FY2026 Fee Schedule. |
| Commercial, Multi-family (3+ units), Industrial, Alternative Energy — valuation up to $10,000 | $66.63 plus valuation x 0.032 | City of Lewiston FY2026 Fee Schedule. |
| Commercial, Multi-family (3+ units), Industrial, Alternative Energy — valuation $10,001 to $100,000 | $288.74 plus (valuation - $10,000) x 0.028 | City of Lewiston FY2026 Fee Schedule. |
| Commercial, Multi-family (3+ units), Industrial, Alternative Energy — valuation $100,001 and up | $1,288.24 plus (valuation - $100,000) x 0.015 | City of Lewiston FY2026 Fee Schedule. |
| Electrical Plan Review Fee | $39.77 or 25% of the electrical permit fee, whichever is greater | City of Lewiston FY2026 Fee Schedule. |
Plumbing Permit
VerifiedRequired for all residential and commercial interior and exterior piping work in the City of Lewiston, per the adopted Idaho State Plumbing Code (based on the 2015 UPC). Issued by City of Lewiston Building Services.
Verified 2026-07-04 · Source
Requirements
- Required for all residential and commercial interior and exterior piping — City of Lewiston Permits Needed page
- Compliance with the Idaho State Plumbing Code (based on 2015 UPC) as adopted by the City of Lewiston (January 2021)
Required documents
- RequiredPlumbing Permit ApplicationSubmitted via the City of Lewiston's online permit portal (GovWell) or through Building Services.
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| New Single Family Dwelling (up to 1,500 sq ft) | $216.56, plus $72.20 for each additional 1,000 sq ft or portion thereof | City of Lewiston FY2026 Fee Schedule, Schedule F, Plumbing Permit Fees. |
| New Duplex | $433.11 | City of Lewiston FY2026 Fee Schedule. |
| Existing Residence (one fixture included) / Detached Shop | $72.20, plus $11.10 for each additional fixture, up to the maximum of the corresponding square footage fee | City of Lewiston FY2026 Fee Schedule. |
| Sewer Line / Water Line | $72.20 each | City of Lewiston FY2026 Fee Schedule. |
| Sewer and Water Line (if inspected at the same time) | $72.20 | City of Lewiston FY2026 Fee Schedule. |
| Sewer Turnaround / Domestic Water (change from septic to City, water re-piper under house) | $72.20 | City of Lewiston FY2026 Fee Schedule. |
| Lawn Sprinklers | $72.20 | City of Lewiston FY2026 Fee Schedule. |
| Modular, Manufactured, or Mobile Homes (sewer and water stub connections) | $72.20 | City of Lewiston FY2026 Fee Schedule. |
| Commercial, Multi-family (3+ units), Industrial, Alternative Energy — valuation up to $10,000 | $66.63 plus valuation x 0.032 | City of Lewiston FY2026 Fee Schedule. |
| Commercial, Multi-family (3+ units), Industrial, Alternative Energy — valuation $10,001 to $100,000 | $288.74 plus (valuation - $10,000) x 0.028 | City of Lewiston FY2026 Fee Schedule. |
| Commercial, Multi-family (3+ units), Industrial, Alternative Energy — valuation $100,001 and up | $1,288.24 plus (valuation - $100,000) x 0.015 | City of Lewiston FY2026 Fee Schedule. |
| Plumbing Plan Review Fee | $39.77 or 25% of the mechanical permit fee, whichever is greater | City of Lewiston FY2026 Fee Schedule (the fee schedule labels this line's percentage basis as 'mechanical permit fee' verbatim in the Plumbing Permit Fees section). |
Mechanical Permit (HVAC, Gas Work)
VerifiedRequired for all residential and commercial installation of air conditioners, water heaters, furnaces, etc., and all gas work in the City of Lewiston, per the adopted 2018 IMC. Issued by City of Lewiston Building Services.
Verified 2026-07-04 · Source
Requirements
- Required for residential and commercial installation of air conditioners, water heaters, furnaces, etc., and all gas work — City of Lewiston Permits Needed page
- Compliance with the 2018 IMC as adopted by the City of Lewiston (January 2021)
Required documents
- RequiredMechanical Permit ApplicationSubmitted via the City of Lewiston's online permit portal (GovWell) or through Building Services.
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| New Single Family Dwelling (up to 1,500 sq ft) | $216.56, plus $72.20 for each additional 1,000 sq ft or portion thereof | City of Lewiston FY2026 Fee Schedule, Schedule F, Mechanical Permit Fees. |
| New Duplex | $433.11 | City of Lewiston FY2026 Fee Schedule. |
| Existing Residence (one HVAC equipment included) / Modular, Manufactured, or Mobile Homes / Detached Shop | $72.20, plus $11.10 for each additional HVAC equipment installed, up to the maximum of the corresponding square footage fee | City of Lewiston FY2026 Fee Schedule. |
| Gas Line | $72.20 | City of Lewiston FY2026 Fee Schedule. |
| Kitchen Range Hoods | $72.20 | City of Lewiston FY2026 Fee Schedule. |
| Solid Fuel/Gas Fuel Appliance | $72.20 per inspection | City of Lewiston FY2026 Fee Schedule. |
| Hydronic Heating | $72.20, plus $11.10 times the number of zones | City of Lewiston FY2026 Fee Schedule. |
| Requested Inspection or Miscellaneous Inspections | $72.20 per hour | City of Lewiston FY2026 Fee Schedule. |
| Commercial, Multi-family (3+ units), Industrial, Alternative Energy — valuation up to $10,000 | $66.63 plus valuation x 0.032 | City of Lewiston FY2026 Fee Schedule. |
| Commercial, Multi-family (3+ units), Industrial, Alternative Energy — valuation $10,001 to $100,000 | $288.74 plus (valuation - $10,000) x 0.028 | City of Lewiston FY2026 Fee Schedule. |
| Commercial, Multi-family (3+ units), Industrial, Alternative Energy — valuation $100,001 and up | $1,288.24 plus (valuation - $100,000) x 0.015 | City of Lewiston FY2026 Fee Schedule. |
| Mechanical Plan Review Fee | $39.77 or 25% of the mechanical permit fee, whichever is greater | City of Lewiston FY2026 Fee Schedule. |
Demolition Permit
VerifiedRequired for any structure served by utilities in the City of Lewiston. Issued by City of Lewiston Building Services with a flat fee (bond not included).
Verified 2026-07-04 · Source
Requirements
- Required for any structure served by utilities — City of Lewiston Permits Needed page
Required documents
- RequiredDemolition Permit ApplicationSubmitted via the City of Lewiston's online permit portal (GovWell) or through Building Services.
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Demolition (does not include bond) | $144.36 | City of Lewiston FY2026 Fee Schedule (Resolution 2025-39, effective 10/1/2025), Schedule F, Other Permit Fees. |
Swimming Pool Permit
VerifiedRequired for swimming pool construction/installation in the City of Lewiston, with a flat fee separate from the standard valuation-based building permit fee. Residential spas, hot tubs, and hydro massage tubs are separately fee-assessed under the Electrical Permit Fees schedule per inspection.
Verified 2026-07-04 · Source
Requirements
- Swimming pool construction requires a building permit under the City's general permit requirement ('any building or structure... constructed... enlarged... erected')
Required documents
- RequiredBuilding Permit ApplicationSubmitted via the City of Lewiston's online permit portal (GovWell) or through Building Services.
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Swimming Pools | $181.13 | City of Lewiston FY2026 Fee Schedule (Resolution 2025-39, effective 10/1/2025), Schedule F, Other Permit Fees. |
| Residential Spas, Hot Tubs, Hydro Massage Tubs, and Swimming Pools (electrical inspection) | $72.20 per inspection | City of Lewiston FY2026 Fee Schedule, Schedule F, Electrical Permit Fees — a separate line item from the flat Swimming Pools building fee. |
Sources & verification
Verified against official sources. Last reviewed 2026-07-04.
Fee schedules
Applications & forms
Department & other records
Fees, timelines, and adopted codes are researched from each jurisdiction's published records — see how we verify. Requirements change and vary by project, so always confirm the current details with the Lewiston building department before you submit. PermitBase is an independent reference and is not affiliated with any government agency.