City Building Permits

Nampa, ID - 2026 Building Permit Guide

How to apply for a building permit in Nampa, Idaho. Permit authority, application steps, fees, and inspection requirements.

Idaho Canyon County Updated March 2026

Permit Authority

Covers all properties within incorporated Nampa city limits. Does not cover unincorporated Canyon County areas adjacent to Nampa.

Department
City of Nampa Department of Building Safety and Code (within Development Services)
Address
500 12th Avenue South, Nampa, ID 83651
Phone
(208) 468-5435
Website
https://www.cityofnampa.us/163/Building-Safety-Code

Online Permit Portal

Open Citizen Self Service (CSS) - Tyler Technologies EnerGov

Platform: Tyler Technologies EnerGov • Account required: Yes • Submission: Online only

Application Process

  1. Confirm zoning compatibility and required land use entitlements with Planning and Zoning (phone: (208) 468-4430).
  2. Create or log into CSS portal account at https://nampaid-energovpub.tylerhost.net/Apps/SelfService#/home
  3. Submit permit application online, selecting correct permit type (residential, commercial, trade, erosion, etc.).
  4. Staff reviews application for completeness at intake; plan review fees are assessed at this stage.
  5. Plan review: staff reviews plans against adopted codes. Corrections requested via email from noreply@cityofnampa.us. Applicant is responsible for monitoring and responding to emails.
  6. Issuance: once plans are approved, final fees are invoiced. Approved plans are released with "Approved" designation.
  7. If significant design changes are needed after issuance, a plan modification must be processed (additional fees may apply).
  8. Request inspections through the CSS portal or by calling the inspection line at (208) 468-5404.
  9. Final inspection passed; Certificate of Occupancy or Certificate of Completion issued.

Typical processing time: Plan review processing timeframes are published on the department website; check cityofnampa.us for current times.

Source: City of Nampa Department of Building Safety and Code (within Development Services)

General Requirements

Required for new one- or two-family dwellings; finishing attics, garages, or basements for living space; adding rooms, garages, sheds, carports, or attached structures; detached sheds exceeding 200 square feet (any size shed if hardwired for 120V electrical); window or door replacements with structural modifications; wall relocation or addition; re-roofing (overlay or complete tear-off); retaining walls 4 feet or higher, or 2 feet or higher with a slope above; decks over 12 inches high; fences; patio covers, carports, or enclosed roof areas; sidewalks and driveways over 30 inches above grade; replacement siding or stucco. Erosion and sediment control permit required for projects disturbing 10+ cubic yards of earth.

Required Documents

  • Completed application via CSS portal
  • Site plan
  • Construction plans and specifications
  • Stamped engineering for commercial projects
Permit validity
Permits expire 180 days after the applied date or 180 days after the last documented inspection (whichever is later). If expired less than one year, permit may be reactivated by contacting the department and paying a reactivation fee.
Building code
2018 International Building Code (IBC), 2018 International Residential Code (IRC), 2018 International Fire Code (IFC), 2018 International Existing Building Code (IEBC), 2018 International Energy Conservation Code (IECC) - residential and commercial, 2018 International Mechanical Code (IMC), 2018 International Fuel Gas Code (IFGC), 2009 ICC/ANSI A117.1 (accessibility), 2017 Idaho State Plumbing Code, 2023 National Electric Code (NEC), 2015 NFPA 30 (motor fuel), 2015 NFPA 99 (health care). Local amendments codified in Title 4 of Nampa City Ordinances.
Owner-builder
Homeowners may self-perform building, mechanical, electrical, or plumbing work on their primary or secondary residence without contractor registration, provided they intend to live in the residence within 12 months after project completion. Owner must perform the work personally under a homeowner permit.
Contractor requirements
Contractors must be state-registered building contractors (Idaho Code 54-52) or licensed subcontractors. State registration number and expiration date required on application.

Fees

Plan check fee
Plan review fees assessed at intake; see fee schedule document.
Permit fee formula
Valuation-based fee schedule.
Reinspection fee
$55.00 for failure to be ready at a scheduled inspection
Payment note
Fees can be paid online through the CSS portal. Development impact fees and permit fees are separate line items.

Fees change. Verify current amounts at the official fee schedule.

Work That Does NOT Require a Permit

  • Interior work not involving structural changes: painting, flooring, cabinet replacement, countertop replacement
  • Interior work not relocating plumbing fixtures
  • Low-voltage outdoor lighting (110-volt outdoor lighting requires a permit)
  • Detached sheds under 200 square feet (if not hardwired for 120V electrical)

Inspections

How to Schedule

  • CSS portal (online)
  • Inspection line: (208) 468-5404 (phone)
Scheduling deadline
All inspections must be requested before 12:00 AM (midnight) the prior day to be scheduled for the next day.
Inspection hours
Monday through Friday, 8:00 AM to 4:00 PM
Time windows
AM time slots (8:00 AM - 12:00 PM) are available for Zones 1 and 3 for footings, foundations, masonry grout, and open trench work. PM time slots (12:30 PM - 4:00 PM) for Zones 2 and 4.

Typical inspection sequence: Footing/foundation, framing rough-in, insulation, plumbing rough-in (DOPL), mechanical rough-in (DOPL), electrical rough-in (DOPL), final building inspection, Certificate of Occupancy or Completion.

Additional Resources

Information on this page was last verified: March 2026. Permit rules and fees change — confirm current requirements directly with the City of Nampa Department of Building Safety and Code (within Development Services) before applying.

Frequently Asked Questions

Nampa Building Permit FAQ

Do I need a building permit in Nampa, ID?
Required for new one- or two-family dwellings; finishing attics, garages, or basements for living space; adding rooms, garages, sheds, carports, or attached structures; detached sheds exceeding 200 square feet (any size shed if hardwired for 120V electrical); window or door replacements with structural modifications; wall relocation or addition; re-roofing (overlay or complete tear-off); retaining walls 4 feet or higher, or 2 feet or higher with a slope above; decks over 12 inches high; fences; patio covers, carports, or enclosed roof areas; sidewalks and driveways over 30 inches above grade; replacement siding or stucco. Erosion and sediment control permit required for projects disturbing 10+ cubic yards of earth.
How much does a building permit cost in Nampa, ID?
Fees are calculated as: Valuation-based fee schedule.. Plan check fee: Plan review fees assessed at intake; see fee schedule document..
How do I apply for a building permit in Nampa, ID?
1. Confirm zoning compatibility and required land use entitlements with Planning and Zoning (phone: (208) 468-4430). 2. Create or log into CSS portal account at https://nampaid-energovpub.tylerhost.net/Apps/SelfService#/home 3. Submit permit application online, selecting correct permit type (residential, commercial, trade, erosion, etc.). 4. Staff reviews application for completeness at intake; plan review fees are assessed at this stage. 5. Plan review: staff reviews plans against adopted codes. Corrections requested via email from noreply@cityofnampa.us. Applicant is responsible for monitoring and responding to emails. 6. Issuance: once plans are approved, final fees are invoiced. Approved plans are released with "Approved" designation. 7. If significant design changes are needed after issuance, a plan modification must be processed (additional fees may apply). 8. Request inspections through the CSS portal or by calling the inspection line at (208) 468-5404. 9. Final inspection passed; Certificate of Occupancy or Certificate of Completion issued.
How long does it take to get a building permit in Nampa, ID?
Typical processing time is Plan review processing timeframes are published on the department website; check cityofnampa.us for current times..
What work is exempt from building permits in Nampa, ID?
The following work is generally exempt: Interior work not involving structural changes: painting, flooring, cabinet replacement, countertop replacement; Interior work not relocating plumbing fixtures; Low-voltage outdoor lighting (110-volt outdoor lighting requires a permit); Detached sheds under 200 square feet (if not hardwired for 120V electrical).
How do I schedule a building inspection in Nampa, ID?
Inspections can be scheduled via: CSS portal, Inspection line: (208) 468-5404. All inspections must be requested before 12:00 AM (midnight) the prior day to be scheduled for the next day..

Need help with your project?

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Important: This page is an educational resource provided by jaspector.com. It is not legal advice, and it does not substitute for official guidance from the permit authority listed above. Permit requirements, fees, and processes change frequently. Always verify current requirements directly with the issuing department before beginning any construction project. Use of this page does not create an attorney-client relationship. Jaspector assumes no liability for any outcomes arising from reliance on this information.

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