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Accessory Structure / Pole Building Permit in Caldwell, Idaho

Required for detached garages, carports, sheds, and pole buildings on residential properties in Caldwell when the structure requires a building permit. A dedicated Residential Pole Building Packet is available for post-frame construction. Separate trade permits required for any electrical, plumbing, or mechanical work.

Verified 2026-07-16 · Source

When you need this permit

  • Accessory structures requiring a building permit per City of Caldwell requirements and adopted IRC
  • Any structure with hardwired electrical requires a separate electrical permit
  • Pole/post-frame buildings: use the Residential Pole Building Packet
  • Site plan at 1/20 scale, floor plan, wall section required
  • Verify setback requirements with Planning & Zoning Division before submitting

Required documents

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Fee schedule

Building Permit — valuation $0–$499Assessed on project valuation per Caldwell Building Safety Fees Resolution No. 300-25, Section I-A and Table 1 (accessory structures use the same general Building Permit fee schedule as all other building permits — no separate accessory-structure table exists); confirmed against the current official fee schedule PDF, verified 2026-07-01
$34.00 flat
Building Permit — valuation $500–$1,999Resolution No. 300-25, Table 1
$34.00 base + $0.02624 per dollar above $500
Building Permit — valuation $2,000–$24,999Resolution No. 300-25, Table 1
$64.37 base + $0.01135 per dollar above $2,000
Building Permit — valuation $25,000–$49,999Resolution No. 300-25, Table 1
$326.54 base + $0.0085 per dollar above $25,000
Building Permit — valuation $50,000–$99,999Resolution No. 300-25, Table 1
$549.65 base + $0.00565 per dollar above $50,000
Building Permit — valuation $100,000–$499,999Resolution No. 300-25, Table 1
$846.27 base + $0.004546 per dollar above $100,000
Building Permit — valuation $500,000–$999,999Resolution No. 300-25, Table 1
$2,755.45 base + $0.004336 per dollar above $500,000
Building Permit — valuation $1,000,000+Resolution No. 300-25, Table 1
$5,031.78 base + $0.003650 per dollar above $1,000,000
Residential Building Plan Review FeeResolution No. 300-25, Section I-D-2a
40% of building permit fee
Planning & Zoning Plan Review FeeResolution No. 300-25, Section I-D-2b
35% of building permit fee (minimum $55.00)
Engineering Plan Review FeeResolution No. 300-25, Section I-D-2c
20% of building permit fee
Reinspection (3rd inspection / 2nd reinspection for same segment)Resolution No. 300-25, Section V-C
$60.00

Review timeline

Plan reviewTypical estimate — confirm current times with the Caldwell building department
~7–10 business days

How long did your Accessory Structure / Pole Building Permit permit actually take in Caldwell?

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

Inspection process

  1. 1

    Foundation / Footings

    Verify depth (24-inch frost line minimum), forms, post embedment for pole buildings

  2. 2

    Final

    Structure complete per approved plans

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

Tips

  • Verify setback and zoning requirements with Planning & Zoning before designing or applying.
  • Pole and post-frame structures: use the dedicated Residential Pole Building Packet.
  • Any electrical installation in an accessory structure requires a separate electrical permit.
  • Accessory structures are assessed under the same general Building Permit valuation table (Table 1) as new residential construction — there is no separate accessory-structure fee schedule.

Frequently asked questions

It depends on the size and type of the structure. Confirm permit requirements with the Building Safety Division at (208) 455-3024 and verify setbacks with Planning & Zoning before beginning any work.

In Caldwell, the published Building Permit — valuation $0–$499 is: $34.00 flat. Additional published fees: Building Permit — valuation $500–$1,999 — $34.00 base + $0.02624 per dollar above $500; Building Permit — valuation $2,000–$24,999 — $64.37 base + $0.01135 per dollar above $2,000; Building Permit — valuation $25,000–$49,999 — $326.54 base + $0.0085 per dollar above $25,000; Building Permit — valuation $50,000–$99,999 — $549.65 base + $0.00565 per dollar above $50,000; Building Permit — valuation $100,000–$499,999 — $846.27 base + $0.004546 per dollar above $100,000; Building Permit — valuation $500,000–$999,999 — $2,755.45 base + $0.004336 per dollar above $500,000; Building Permit — valuation $1,000,000+ — $5,031.78 base + $0.003650 per dollar above $1,000,000; Residential Building Plan Review Fee — 40% of building permit fee; Planning & Zoning Plan Review Fee — 35% of building permit fee (minimum $55.00); Engineering Plan Review Fee — 20% of building permit fee; Reinspection (3rd inspection / 2nd reinspection for same segment) — $60.00. These are the jurisdiction's own published figures — see the fee schedule table and source citations on this page.

Plan review for an accessory structure / pole building permit in Caldwell typically runs 7–10 business days. This is an estimate, not a published figure — confirm current review times with City of Caldwell Department of Building Safety at (208) 455-3024.

You'll need: Building Permit Application; Site Plan and Construction Drawings. Depending on your project, Caldwell may also ask for: Residential Pole Building Packet (PDF). See the required-documents checklist on this page for details on each.

Caldwell requires 2 inspection(s) for an accessory structure / pole building permit, in order: Foundation / Footings, Final. Schedule each through City of Caldwell Department of Building Safety ((208) 455-3024).

Apply through City of Caldwell Department of Building Safety at 205 South 6th Ave, Caldwell, ID 83605. Phone: (208) 455-3024, email: rcollins@cityofcaldwell.org. Office hours: Mon–Fri (inspection requests must be called in by 7:00 AM for same-day scheduling). Official information: https://www.cityofcaldwell.org/Departments/Community-Development/Building-Safety-Division.

Caldwell, Idaho has adopted: 2018 International Residential Code (IRC) — Parts I, II, III, IV and IX; 2018 International Building Code (IBC); 2018 International Existing Building Code (IEBC); 2018 International Fire Code (IFC); 2023 National Electrical Code (NEC) — Administrative Rules IDAPA 24.39.10 (Rules of the Idaho Electrical Board; renumbered from IDAPA 07.01.01–07.01.11); 2018 International Mechanical Code (IMC); 2018 International Fuel Gas Code (IFGC); 2017 Idaho State Plumbing Code — Based on the 2015 Uniform Plumbing Code; Administrative Rules IDAPA 24.39.20 (Rules Governing Plumbing; renumbered from IDAPA 07.02.02–07.02.07); 2018 International Energy Conservation Code (IECC) with State Amendments; 2018 International Property Maintenance Code; 1997 Uniform Code for the Abatement of Dangerous Buildings; 1997 Uniform Sign Code. Local amendments apply — see the Caldwell overview page for the full list.

Sources & verification

Verified against official sources. Last reviewed 2026-07-16.

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

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Accessory Structure / Pole Building Permit in other cities

Ammon, IdahoMiddleton, IdahoNampa, IdahoUnincorporated Bingham County, IdahoUnincorporated Canyon County, IdahoConrad, MontanaFruit Heights, UtahGrantsville, Utah

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