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Idaho Building Permit Guidelines
Britain Jacobson
Last updated:
Jan 20, 2025
Published:
January 16, 2025
You almost always need a permit to build in Idaho. Building permits are required for most new construction, and failing to get a permit can result in costly delays and even removal of work. This can be a challenging process for developers, contractors, and builders — one that’s filled with odd rules and back-and-forth communication.
Whether you’re building a new multifamily building or remodeling an old house, knowing the basics of the Idaho building permit process can save you time and prevent costly setbacks. This guide will walk you through the essential steps.
Does Idaho require building permits?
Yes, Idaho usually requires a building permit for construction projects. Plan to obtain a permit for projects involving:
- New construction
- Additions and alterations, such as adding a room, deck, or patio
- Electrical and plumbing installations
- HVAC installations
- Major renovations or remodels that result in structural changes
Basically, unless it’s your run-of-the-mill DIY project, you’ll probably need a building permit. The state uses permitting as a way to ensure that all building projects meet safety codes, environmental standards, and zoning requirements.
Which counties in Idaho do not require building permits?
Some rural counties in Idaho don’t require building permits for all new construction. This is because they have looser permitting requirements due to sparse populations. In these areas, you can sometimes build smaller structures or agricultural buildings without a permit, although you should only do so after verifying with your local county office.
For example, most construction outside of city environs in Idaho County can be done without a permit. Certain large agricultural buildings may fall under state jurisdiction, however, so always check first before getting started. State inspectors may still want to check construction.
How big of a building can you build in Idaho without a permit?
In general, small sheds and accessory structures under 200 square feet don’t require a permit, provided that they’re not used as a living space or for commercial purposes.
If you plan to build a shed, workshop, or storage unit, check if it falls under the square footage that doesn’t require a permit in your county.
How long does a building permit last in Idaho?
Your Idaho building permit is active for one year from the date of issuance. If the project isn’t completed by then, you may be able to apply for an extension. Otherwise, you’ll need to renew the permit to avoid fines and delays from working with an expired one.
Idaho building permit requirements
When you’re ready to apply for a permit in Idaho, you’ll first want to gather the right documents and prepare them for your application. Remember: permits are granted only once a building department feels confident about your plans and timelines. Providing the right documentation is how to give them reassurance that you know what you’re doing.
Here’s a list of commonly required documents:
- Construction plans: Detailed blueprints or drawings of your project, including measurements, materials, and specifications showing how the project meets Idaho building codes.
- Site plans: Site plans showing the location of the proposed structure in relation to property boundaries, existing buildings, and infrastructure like utility lines.
- Proof of contractor license: Include proof of licensure for general contractors, electricians, and plumbers working on the project.
- Project cost estimate: Provide a rough cost estimate of the project.
- Application forms: Each county has specific forms found on their website or at the building department office.
- Payment for fees: Fees vary based on the size and type of project, so check the local fee schedule to know what to expect.
You can apply for a building permit completely online through Idaho’s eTRAKiT portal. Here, you can upload documents, track progress, pay fees, and download approved permit documents.
Working with the Division of Occupational and Professional Licenses (DOPL)
The Division of Occupational and Professional Licenses (DOPL) oversees licensing and regulations for contractors throughout Idaho. You can check the DOPL website for information on licensing requirements and to verify the credentials of contractors, electricians, and other tradespeople working on your project.
How much does an Idaho building permit cost?
Permit fees in Idaho are based on a project’s size, type, and location. As large commercial buildings and multifamily housing require more detailed inspections, their permits usually cost thousands of dollars.
You can check with your local building department for a precise fee schedule.
Help for your permit application
It’s not exactly easy to obtain a building permit in Idaho, but help is available to make the process a lot easier. PermitFlow is an online permitting platform with all the tools and services you need to take the headache out of beginning your next project.
With PermitFlow on your side, you won’t have to navigate the process alone. Our team of permitting experts comprises contractors and former building department personnel, giving you useful information tailored to the unique needs of your project.
How PermitFlow simplifies permitting
The two biggest obstacles in permitting are knowing which documents to provide the building department and answering their communications.
PermitFlow tackles both by providing:
- Quick access to local permitting information: Get updated information on building codes and permit requirements for Idaho cities and counties, so you know exactly what’s needed.
- Digital submission and tracking: PermitFlow lets you submit applications online, track their status, and get updates from the local permitting office in real time. No more sitting around refreshing your email inbox.
- Document management: PermitFlow stores all essential documents in one centralized location, making it easy to access and share with project stakeholders.
The most common permitting delays come from mismanaging documents and failing to reply to important requests. PermitFlow takes care of both these issues by providing real-time updates and accurate guidance on what to do next.
Get started with PermitFlow
You don’t have to navigate the permitting process alone. PermitFlow takes the headache out of permitting so that you can focus on doing what you do best: getting the job done.
If you’re ready to make your Idaho building permit application as smooth as possible, talk with our permitting professionals to get expert guidance tailored on your project.
You almost always need a permit to build in Idaho. Building permits are required for most new construction, and failing to get a permit can result in costly delays and even removal of work. This can be a challenging process for developers, contractors, and builders — one that’s filled with odd rules and back-and-forth communication.
Whether you’re building a new multifamily building or remodeling an old house, knowing the basics of the Idaho building permit process can save you time and prevent costly setbacks. This guide will walk you through the essential steps.
Does Idaho require building permits?
Yes, Idaho usually requires a building permit for construction projects. Plan to obtain a permit for projects involving:
- New construction
- Additions and alterations, such as adding a room, deck, or patio
- Electrical and plumbing installations
- HVAC installations
- Major renovations or remodels that result in structural changes
Basically, unless it’s your run-of-the-mill DIY project, you’ll probably need a building permit. The state uses permitting as a way to ensure that all building projects meet safety codes, environmental standards, and zoning requirements.
Which counties in Idaho do not require building permits?
Some rural counties in Idaho don’t require building permits for all new construction. This is because they have looser permitting requirements due to sparse populations. In these areas, you can sometimes build smaller structures or agricultural buildings without a permit, although you should only do so after verifying with your local county office.
For example, most construction outside of city environs in Idaho County can be done without a permit. Certain large agricultural buildings may fall under state jurisdiction, however, so always check first before getting started. State inspectors may still want to check construction.
How big of a building can you build in Idaho without a permit?
In general, small sheds and accessory structures under 200 square feet don’t require a permit, provided that they’re not used as a living space or for commercial purposes.
If you plan to build a shed, workshop, or storage unit, check if it falls under the square footage that doesn’t require a permit in your county.
How long does a building permit last in Idaho?
Your Idaho building permit is active for one year from the date of issuance. If the project isn’t completed by then, you may be able to apply for an extension. Otherwise, you’ll need to renew the permit to avoid fines and delays from working with an expired one.
Idaho building permit requirements
When you’re ready to apply for a permit in Idaho, you’ll first want to gather the right documents and prepare them for your application. Remember: permits are granted only once a building department feels confident about your plans and timelines. Providing the right documentation is how to give them reassurance that you know what you’re doing.
Here’s a list of commonly required documents:
- Construction plans: Detailed blueprints or drawings of your project, including measurements, materials, and specifications showing how the project meets Idaho building codes.
- Site plans: Site plans showing the location of the proposed structure in relation to property boundaries, existing buildings, and infrastructure like utility lines.
- Proof of contractor license: Include proof of licensure for general contractors, electricians, and plumbers working on the project.
- Project cost estimate: Provide a rough cost estimate of the project.
- Application forms: Each county has specific forms found on their website or at the building department office.
- Payment for fees: Fees vary based on the size and type of project, so check the local fee schedule to know what to expect.
You can apply for a building permit completely online through Idaho’s eTRAKiT portal. Here, you can upload documents, track progress, pay fees, and download approved permit documents.
Working with the Division of Occupational and Professional Licenses (DOPL)
The Division of Occupational and Professional Licenses (DOPL) oversees licensing and regulations for contractors throughout Idaho. You can check the DOPL website for information on licensing requirements and to verify the credentials of contractors, electricians, and other tradespeople working on your project.
How much does an Idaho building permit cost?
Permit fees in Idaho are based on a project’s size, type, and location. As large commercial buildings and multifamily housing require more detailed inspections, their permits usually cost thousands of dollars.
You can check with your local building department for a precise fee schedule.
Help for your permit application
It’s not exactly easy to obtain a building permit in Idaho, but help is available to make the process a lot easier. PermitFlow is an online permitting platform with all the tools and services you need to take the headache out of beginning your next project.
With PermitFlow on your side, you won’t have to navigate the process alone. Our team of permitting experts comprises contractors and former building department personnel, giving you useful information tailored to the unique needs of your project.
How PermitFlow simplifies permitting
The two biggest obstacles in permitting are knowing which documents to provide the building department and answering their communications.
PermitFlow tackles both by providing:
- Quick access to local permitting information: Get updated information on building codes and permit requirements for Idaho cities and counties, so you know exactly what’s needed.
- Digital submission and tracking: PermitFlow lets you submit applications online, track their status, and get updates from the local permitting office in real time. No more sitting around refreshing your email inbox.
- Document management: PermitFlow stores all essential documents in one centralized location, making it easy to access and share with project stakeholders.
The most common permitting delays come from mismanaging documents and failing to reply to important requests. PermitFlow takes care of both these issues by providing real-time updates and accurate guidance on what to do next.
Get started with PermitFlow
You don’t have to navigate the permitting process alone. PermitFlow takes the headache out of permitting so that you can focus on doing what you do best: getting the job done.
If you’re ready to make your Idaho building permit application as smooth as possible, talk with our permitting professionals to get expert guidance tailored on your project.
