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Residential Addition / Remodel / Minor Alteration Permit in Casa Grande, Arizona

Required for room additions, remodels, and other alterations to existing one- and two-family dwellings in Casa Grande. Reviewed against the 2018 IRC as adopted and amended by the City. Classified as 'Addition/Alterations' on the City's A.R.S. § 9-835 review timeframe chart.

Verified 2026-07-06 · Source

When you need this permit

  • Building permit required for room additions, remodels, and alterations to existing single- and two-family residences
  • Detached accessory structures 200 sq ft or less (residential) with no utility connections (electric, water, sewer) do not require a building permit, but Planning Department approval is still required for size/height/setback compliance
  • Site Plan Review fee applies for new construction and additions to Single Family and Duplex properties, and separately for Residential Accessory Structures 200 sq ft or less
  • Plans must comply with City of Casa Grande Design Criteria (115 mph Vult wind, Exposure C; Seismic Design Category B)
  • Owner may self-contract via signed owner-builder affidavit or must use Arizona-licensed contractors Owner-builderContractor

Required documents

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Fee schedule

Site Plan Review — New construction and additions, Single Family and DuplexCity of Casa Grande FY 2025-2026 Consolidated Fee Schedule, Basic Plan Review Services
$150.00
Site Plan Review — Residential Accessory Structure, 200 sq ft or lessCity of Casa Grande FY 2025-2026 Consolidated Fee Schedule
$50.00
Building Permit Fee (Addition/Remodel, Based on Valuation)City of Casa Grande FY 2025-2026 Consolidated Fee Schedule, Building Permit Fees — same valuation table as new construction, based on the value of the addition/remodel work or a signed contract, whichever is less
Per the Residential and Commercial Construction valuation table (Residential Minimum Fee $60.00 for $1-$1,000; scaling tiers to $150,000 maximum fee)
Residential Deferred Plan ReviewCity of Casa Grande FY 2025-2026 Consolidated Fee Schedule
$75.00
Minor Revisions of Plans after Permit Issuance, ResidentialCity of Casa Grande FY 2025-2026 Consolidated Fee Schedule
$25.00 per page

Review timeline

Plan reviewCasa Grande’s published plan-review target
2–44 business days

How long did your Residential Addition / Remodel / Minor Alteration Permit permit actually take in Casa Grande?

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

Inspection process

  1. 1

    Foundation/Footing

    Required before concrete pour for additions

  2. 2

    Framing

    Structural connections to existing structure

  3. 3

    Final

    Completed work verified against approved plans

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

Tips

  • Per the City's A.R.S. § 9-835 review timeframe chart, Single/Two-Family Residential (IRC-designed) 'Addition/Alterations' carries a 2-business-day Administrative Completeness Review plus 20 business days each for Initial and Resubmittal Substantive Review — a 44-business-day Over-All Timeframe (same track as full new construction).
  • A detached accessory structure of 200 sq ft or less with no utility connections skips the building permit entirely, but still needs Planning Department sign-off on size, height, and setbacks — use the Site Plan Review (Residential Accessory Structure) fee track instead of the full Building Permit Fee track.
  • Minor plan revisions after permit issuance are billed per page ($25 residential), separate from the original plan review fee.

Frequently asked questions

Detached accessory structures (sheds, shade structures, carports) up to 200 sq ft (residential) or 120 sq ft (commercial) do not require a building permit if they have no utility connections (electric, water, sewer). Planning Department approval is still required to confirm size, height, and setback compliance.

In Casa Grande, the published Site Plan Review — New construction and additions, Single Family and Duplex is: $150.00. Additional published fees: Site Plan Review — Residential Accessory Structure, 200 sq ft or less — $50.00; Building Permit Fee (Addition/Remodel, Based on Valuation) — Per the Residential and Commercial Construction valuation table (Residential Minimum Fee $60.00 for $1-$1,000; scaling tiers to $150,000 maximum fee); Residential Deferred Plan Review — $75.00; Minor Revisions of Plans after Permit Issuance, Residential — $25.00 per page. These are the jurisdiction's own published figures — see the fee schedule table and source citations on this page.

Casa Grande's published plan-review target for a residential addition / remodel / minor alteration permit is 2–44 business days.

You'll need: Building Permit Application; Site/Plot Plan. See the required-documents checklist on this page for details on each.

Casa Grande requires 3 inspection(s) for a residential addition / remodel / minor alteration permit, in order: Foundation/Footing, Framing, Final. Schedule each through City of Casa Grande Planning & Development Department — Development Center (Building Division) (520-421-8630).

Apply through City of Casa Grande Planning & Development Department — Development Center (Building Division) at 510 E. Florence Boulevard, Casa Grande, AZ 85122. Phone: 520-421-8630, email: cgplanning@casagrandeaz.gov. Office hours: Monday - Friday, 7:30 a.m. - 5 p.m. The Development Center is a 'one-stop shop' for building, engineering, fire, and planning plan review/permits/inspections. Building inspections are scheduled online through the WebPermits portal (rogue.casagrandeaz.gov/WebPermits); the City does not offer same-day inspections unless the request is received by 11:59 p.m. the prior business day, and inspectors run routes between 6 a.m. and 3:30 p.m.. Official information: https://casagrandeaz.gov/231/Building.

Casa Grande, Arizona has adopted: Arizona has NO statewide mandatory building code floor for general construction — code adoption is a per-city/county authority under state enabling statutes (A.R.S. Title 9). The City of Casa Grande runs its own Planning & Development Department / Development Center and independently adopts and administers its own construction codes under Title 15 (Buildings and Construction) of the Casa Grande Code of Ordinances; it does not defer permitting to Pinal County. Source: City of Casa Grande Building page (casagrandeaz.gov/231/Building) and Casa Grande Code of Ordinances Title 15.; 2018 International Building Code (IBC), adopted by reference with City of Casa Grande amendments (Casa Grande Code of Ordinances § 15.08.010), made a public record by Resolution No. 5170. Source: City of Casa Grande Quick Codes Design Criteria Handout (Building Department, rev. 11/8/2024) and Casa Grande Code of Ordinances § 15.08.010, International Building Code.; 2018 International Residential Code (IRC), adopted by reference with City of Casa Grande amendments under Title 15. Climatic and geographic design criteria (IRC Table R301.2(1)) are published separately by the Building Department. Source: City of Casa Grande Quick Codes Design Criteria Handout (rev. 11/8/2024).; 2018 International Mechanical Code (IMC), adopted by reference with City of Casa Grande amendments under Title 15. Source: City of Casa Grande Quick Codes Design Criteria Handout (rev. 11/8/2024).; 2018 International Plumbing Code (IPC), adopted by reference with City of Casa Grande amendments under Title 15. Source: City of Casa Grande Quick Codes Design Criteria Handout (rev. 11/8/2024).; 2018 International Fuel Gas Code (IFGC), adopted by reference with City of Casa Grande amendments under Title 15. Source: City of Casa Grande Quick Codes Design Criteria Handout (rev. 11/8/2024).; 2018 International Fire Code (IFC), adopted by reference as the City's uniform fire code under Title 15. Source: City of Casa Grande Quick Codes Design Criteria Handout (rev. 11/8/2024).; 2018 International Energy Conservation Code (IECC) governs residential and commercial energy-efficiency requirements. Residential energy efficiency design minimums published by the Building Department include: new/replacement HVAC sized per ACCA Manual J & S (gas furnaces/boilers 80% AFUE minimum; air conditioners and heat pumps 14 SEER minimum); duct insulation per ACCA Manual D (R-8 within attics/exterior, R-6 within other portions); common insulation values of R-13 walls, R-38 ceilings, U-0.40 windows, R-0 crawlspace/slab-on-grade, R-3 water/refrigerant lines. Source: City of Casa Grande Quick Codes Design Criteria Handout (rev. 11/8/2024).; 2018 International Property Maintenance Code (IPMC), adopted by reference under Title 15. Source: City of Casa Grande Quick Codes Design Criteria Handout (rev. 11/8/2024).; 2018 International Swimming Pool and Spa Code (ISPSC), adopted by reference under Title 15. Source: City of Casa Grande Quick Codes Design Criteria Handout (rev. 11/8/2024).; 2017 National Electrical Code (NEC/NFPA 70), adopted by reference with City of Casa Grande amendments (note: electrical code cycle is one edition behind the 2018 ICC set). Arc-fault and tamper-resistant outlet protection is required at most locations per the 2017 NEC. Source: City of Casa Grande Quick Codes Design Criteria Handout (rev. 11/8/2024).; NFPA 99 Standards for Health Care Facilities, adopted by reference under Title 15. Source: City of Casa Grande Quick Codes Design Criteria Handout (rev. 11/8/2024).; 2009 ICC A117.1 Accessible and Usable Buildings and Facilities, adopted by reference under Title 15. Source: City of Casa Grande Quick Codes Design Criteria Handout (rev. 11/8/2024).; 2019 City of Casa Grande Building and Technical Administrative Code (CG-BTAC), made a public record by Resolution No. 5170, with a 2022 Amendment made a public record by Resolution No. 5397. This locally-authored administrative code governs permit administration, fees cross-references, and technical amendments layered on top of the adopted ICC model codes. Source: City of Casa Grande Building and Technical Administrative Code, 2019 Edition (casagrandeaz.gov/DocumentCenter, Resolution 5170) and Casa Grande Code of Ordinances § 15.04.010.. Local amendments apply — see the Casa Grande overview page for the full list.

Sources & verification

Verified against official sources. Last reviewed 2026-07-06.

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