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Codes, exemptions & field inspections

Build to the adopted code. Verify every exception.

This guide translates the available agency record into a preconstruction checklist for structural scope, minor work, and inspection release. The adopted code and the issuing official control when a field condition is disputed.

Regulatory framework

The code baseline for Dallas County.

Dallas County's Chapter 47 Uniform Construction Codes Ordinance, Chapter 45 Zoning Ordinance for the unincorporated areas, Chapter 40 Floodplain Management Ordinance, Chapter 42 Subdivision Regulations, Chapter 41 Perry Airport Ordinance, and Chapter 48 Small Wind Energy Conversion Systems Ordinance apply in unincorporated areas. The county's 2026 amendment requires passive radon control methods under Appendix AF of the 2021 International Residential Code for new single-family and two-family homes; Chapter 47 also incorporates county amendments to the International codes and Iowa requirements. Applicable electrical, plumbing, mechanical, septic, floodplain, and state requirements also apply.

Inspection lane

Submit the building permit application by email, mail, or in person after providing a scaled site plan, construction plans, applicable septic and entrance permits, and required sub-permits. Inspection requests must be emailed to the Building Inspector, not phoned in, at least 24 hours in advance and preferably 48 hours. Required stages include footing, foundation, under-slab, rough-in, and final inspection before occupancy; covered work may have to be exposed for inspection. The county also requires a final Certificate of Occupancy before use.

Minor-work playbook

Understand what may be exempt—and what is not.

Agricultural exemption applications may exempt farmhouses and farm buildings primarily adapted for agricultural use while so used or under construction for that use, as well as animal feeding operations and qualifying structures under Iowa Code; the exemption requires Director approval and ends if the building is used for a non-agricultural purpose. The county's general building permit process applies to all other structures, including pools and ground-mounted solar. No broad minor or cosmetic exemption list was published.

Field rule

A permit exemption generally addresses one narrow construction trigger. It does not automatically waive zoning, land-use, floodplain, shoreline, fire, energy, electrical, utility, septic, or right-of-way requirements. Obtain written confirmation when the project involves a new structure, structural alteration, change in occupancy, or concealed work.

Inspection pipeline

Keep the work visible at every release point.

  1. 1

    Request with lead time

    Submit the building permit application by email, mail, or in person after providing a scaled site plan, construction plans, applicable septic and entrance permits, and required sub-permits. Inspection requests must be emailed to the Building Inspector, not phoned in, at least 24 hours in advance and preferably 48 hours. Required stages include footing, foundation, under-slab, rough-in, and final inspection before occupancy; covered work may have to be exposed for inspection. The county also requires a final Certificate of Occupancy before use.

  2. 2

    Preserve access

    Do not cover framing, reinforcement, wiring, piping, damp-proofing, or life-safety work until the required inspection has been completed and documented.

  3. 3

    Close the record

    Retain the approved plans, inspection approvals, correction responses, and final certificate or occupancy release with the property file.

Contractor verification

Verify the builder before the contract is signed.

Use the state licensing system to verify active registration, trade credentials, bond status, and liability coverage where available. Match the legal business name to the proposal and permit application.

Verify contractor ↗

Planning reference

Keep the parcel rules beside the building plans.

A building permit is only one part of statutory compliance. Check the local zoning, ordinance, map, or land-use reference before finalizing setbacks, height, lot coverage, access, drainage, or accessory structure placement.

Open planning reference ↗

Source trail

Official sources for this profile

Use these direct agency or licensing links to confirm current instructions before you file, pay, or schedule work. External pages control if their information differs from this directory.

Agency websiteOpen official source ↗Permit portalOpen official source ↗Application instructionsOpen official source ↗Fee scheduleOpen official source ↗Planning or zoning referenceOpen official source ↗Contractor license lookupOpen official source ↗

Project questions

Frequently asked questions for Dallas County

Who handles permitting for this jurisdiction?

Dallas County Planning and Development is the identified county-level authority for this profile. Confirm that the property is in its service area before filing.

How should I begin an application?

Begin with the online permit gateway listed in the application guide. If the portal does not recognize the address or project type, contact 515-993-5819.

How long might review take?

Complete building permit applications are generally reviewed in up to 10 business days in order received; incomplete applications are returned and cannot proceed. Construction must commence within six months and be completed within 12 months of permit issuance unless an extension is approved. Certificate of Zoning Compliance documents state that the certificate is void if work has not commenced within six months and proposed construction or alteration must be completed within 18 months.

How are inspections scheduled?

Submit the building permit application by email, mail, or in person after providing a scaled site plan, construction plans, applicable septic and entrance permits, and required sub-permits. Inspection requests must be emailed to the Building Inspector, not phoned in, at least 24 hours in advance and preferably 48 hours. Required stages include footing, foundation, under-slab, rough-in, and final inspection before occupancy; covered work may have to be exposed for inspection. The county also requires a final Certificate of Occupancy before use.

Which codes and exemptions should I review?

Dallas County's Chapter 47 Uniform Construction Codes Ordinance, Chapter 45 Zoning Ordinance for the unincorporated areas, Chapter 40 Floodplain Management Ordinance, Chapter 42 Subdivision Regulations, Chapter 41 Perry Airport Ordinance, and Chapter 48 Small Wind Energy Conversion Systems Ordinance apply in unincorporated areas. The county's 2026 amendment requires passive radon control methods under Appendix AF of the 2021 International Residential Code for new single-family and two-family homes; Chapter 47 also incorporates county amendments to the International codes and Iowa requirements. Applicable electrical, plumbing, mechanical, septic, floodplain, and state requirements also apply. Agricultural exemption applications may exempt farmhouses and farm buildings primarily adapted for agricultural use while so used or under construction for that use, as well as animal feeding operations and qualifying structures under Iowa Code; the exemption requires Director approval and ends if the building is used for a non-agricultural purpose. The county's general building permit process applies to all other structures, including pools and ground-mounted solar. No broad minor or cosmetic exemption list was published.

Field sequencing matters

The inspector needs to see the work at the right moment.

Code compliance is not only a plan-review exercise. Footings, reinforcement, framing, fireblocking, wiring, piping, insulation, weather protection, and life-safety systems each have points where the work must remain accessible. Build the inspection calendar into the trade schedule instead of treating it as a final administrative step.

When a project qualifies for a narrow minor-work exemption, keep a written explanation of why it qualifies and confirm that related zoning, utility, fire, energy, or environmental rules do not create a separate approval requirement.

Closeout file

Keep the approved plan set, inspection approvals, correction responses, contractor license verification, final certificate, and any occupancy release together. A clean record protects the owner, builder, lender, insurer, and future buyer.