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Accessory Structure Permit in Middleton, Idaho

Required for any structure or accessory structure exceeding 200 square feet constructed, remodeled, renovated, or added to within the City of Middleton, per City Code Title 4, Chapter 1, Section 4-1-1.

Verified 2026-07-04 · Source

When you need this permit

  • No structure or accessory structure over 200 square feet may be constructed, remodeled, renovated, or added to without first obtaining a building permit and paying established fees (Middleton City Code 4-1-1)
  • Structures 200 sq ft or under are not addressed by this section — confirm permit-exempt status and any zoning/setback requirements with the Building Department before proceeding

Required documents

Check off what you have — your progress is saved on this device.

Not ready yet0 of 1 required documents checked.

This checker covers one permit. A full project usually triggers several — our paid checklist will assemble all of them, from $29

Fee schedule

Small Projects Building Permit DepositCity Fee Schedule Res. 526-25
$75.00
Building Permit Fee — valuation-basedCity Fee Schedule Res. 526-25, Attachment A
Per ICC 2021 Building Valuation Data table x City Permit Fee Multiplier (see Attachment A of City Fee Schedule)

Review timeline

Plan review
Not published — contact the department

How long did your Accessory Structure Permit permit actually take in Middleton?

Anonymous — one question, no email. Answers are combined and only shown once at least 5 people have reported.

Inspection process

  1. 1

    Foundation / Footings

    Before concrete pour, if applicable

  2. 2

    Final

    Structure complete per approved plans

See the full Middleton inspection guide — scheduling & re-inspection fees →

Tips

  • Middleton's 200-square-foot permit threshold (City Code 4-1-1) is stricter/lower than some neighboring Canyon County cities — confirm before assuming a shed or accessory building is exempt.
  • The Small Projects Building Permit Deposit is $75.00 per the current fee schedule (Resolution 526-25, effective 10/1/2025).

Frequently asked questions

Yes, if the structure exceeds 200 square feet. Middleton City Code Section 4-1-1 requires a building permit for any structure or accessory structure over 200 square feet that is constructed, remodeled, renovated, or added to.

In Middleton, the published Small Projects Building Permit Deposit is: $75.00. Additional published fees: Building Permit Fee — valuation-based — Per ICC 2021 Building Valuation Data table x City Permit Fee Multiplier (see Attachment A of City Fee Schedule). These are the jurisdiction's own published figures — see the fee schedule table and source citations on this page.

Middleton does not publish a plan-review timeline for this permit. Contact City of Middleton Building Department at (208) 585-3133 for current turnaround.

You'll need: Small Projects Building Permit application. See the required-documents checklist on this page for details on each.

Middleton requires 2 inspection(s) for an accessory structure permit, in order: Foundation / Footings, Final. Schedule each through City of Middleton Building Department ((208) 585-3133).

Apply through City of Middleton Building Department at 1103 W Main St, Middleton, ID 83644. Phone: (208) 585-3133, email: citmid@middletoncity.org. Office hours: Mon–Fri 8:00 AM – 5:00 PM. Official information: https://middleton.id.gov/Departments/Building.

Middleton, Idaho has adopted: 2018 International Building Code (IBC), with Idaho amendments — adopted by reference via Middleton City Code Title 4, Chapter 1 (state-adopted code); 2018 International Residential Code (IRC), Parts I, II, III and IX — Idaho Residential Code (2020 Edition amendments); 2018 International Existing Building Code (IEBC); 2018 International Energy Conservation Code (IECC) — Idaho Energy Conservation Code (2020 Edition amendments); 2018 International Mechanical Code (IMC); 2018 International Fuel Gas Code (IFGC); 2018 International Residential Code Parts V & VI (mechanical); 2017 Idaho State Plumbing Code (based on 2015 Uniform Plumbing Code); 2023 National Electrical Code (NEC), with Idaho amendments; 2018 International Fire Code (IFC) — administered by the Idaho State Fire Marshal, not the City; ICC/ANSI A117.1-2009 (Accessible and Usable Buildings and Facilities). Local amendments apply — see the Middleton overview page for the full list.

Sources & verification

Verified against official sources. Last reviewed 2026-07-04.

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 Middleton building department before you submit. PermitBase is an independent reference and is not affiliated with any government agency.