ADU Permit Submission Checklist in Irving, Texas

Everything you need to apply for a adu permit in Irving, Texas — documents, fees, steps, and a downloadable submission packet.

Key Facts

Permit required
Yes
Submission method
Online
Typical fee range
$3,600 – $11,880
Review time
Varies by jurisdiction
Inspections
6 inspections required
VerifiedLast verified: Feb 15, 20262 verified sources

ADU Permit Checklist

Irving7 required, 0 optional

Forms & Applications(1)

  • Building Permit ApplicationREQUIRED[1][2]

    Completed City of Irving building permit application with complete project description, property owner contact information, and construction cost estimates

Plans & Diagrams(4)

  • Architectural DrawingsREQUIRED[3][4]

    Complete architectural plans signed by a licensed Texas architect, including floor plans, elevations, sections, and construction details with compliance notes

  • Site PlanREQUIRED[5][6]

    Site plan showing property boundaries, dimensions, building footprint, setbacks, parking layout, access routes, and existing utilities

  • Structural Engineering PlansREQUIRED[9][10]

    Structural engineering plans and calculations by a licensed Texas professional engineer for foundation, framing, and load-bearing elements

  • Mechanical and Utility PlansREQUIRED[11][12]

    Plans showing water supply, sewer, electrical, gas connections and separate metering for water, electric, and gas services to ADU

Supporting Documents(2)

  • Zoning Verification LetterREQUIRED[7][8]

    Zoning verification letter from Irving Development Services confirming property zoning district and ADU eligibility under current zoning ordinance

  • Proof of Property OwnershipREQUIRED[13][14]

    Current property deed or title commitment showing applicant ownership of subject property

This checklist is for reference only. Requirements may change — always verify with Irving before submission.

Avoid rejections — generate a submission-ready packet

Get a personalized ADU permit packet for Irving, Texas — tailored to your project details.

  • Required forms: Building Permit Application, and more
  • Pre-filled templates: Permit Cover Sheet
  • Fee breakdown: $1,200–$7,200 estimated total
  • Step-by-step City of Irving Development Services portal submission guide
  • Inspection prep checklist (6 items)
  • Personalized for your specific project details
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Required Documents

Irving requires the following documents for this permit application.

R

Building Permit Application

Completed City of Irving building permit application with complete project description, property owner contact information, and construction cost estimates

R

Architectural Drawings

Complete architectural plans signed by a licensed Texas architect, including floor plans, elevations, sections, and construction details with compliance notes

R

Site Plan

Site plan showing property boundaries, dimensions, building footprint, setbacks, parking layout, access routes, and existing utilities

R

Zoning Verification Letter

Zoning verification letter from Irving Development Services confirming property zoning district and ADU eligibility under current zoning ordinance

R

Structural Engineering Plans

Structural engineering plans and calculations by a licensed Texas professional engineer for foundation, framing, and load-bearing elements

R

Mechanical and Utility Plans

Plans showing water supply, sewer, electrical, gas connections and separate metering for water, electric, and gas services to ADU

R

Proof of Property Ownership

Current property deed or title commitment showing applicant ownership of subject property

Permit Process

Follow these steps to submit your permit application through City of Irving Development Services.

  1. 1

    Zoning Eligibility Verification

    Obtain zoning verification letter from Irving Development Services confirming ADU is allowed in property zoning district and meets dimensional requirements

    You'll need: Zoning Verification Letter, Proof of Property Ownership

  2. 2

    Submit Building Permit Application

    Submit complete permit application with architectural, structural, utility plans and all required supporting documentation to Irving Development Services

    You'll need: Building Permit Application, Architectural Drawings, Site Plan, Structural Engineering Plans, Mechanical and Utility Plans

  3. 3

    Plan Review and Approval

    Irving Development Services conducts comprehensive plan review for compliance with zoning ordinance, Texas Building Code, and design standards

  4. 4

    Address Plan Review Comments

    Revise and resubmit plans as needed to address any code compliance issues or comments raised during plan review

  5. 5

    Permit Issuance and Payment

    Pay all permit fees and receive approved building permit authorizing construction to begin

  6. 6

    Construction Inspections

    Schedule and pass required inspections: foundation, framing, electrical, plumbing, mechanical, and final inspection per Texas Building Code

  7. 7

    Certificate of Occupancy

    Receive Certificate of Occupancy from Irving Building Official upon successful final inspection and code compliance verification

Fees and Timeline

Fee Breakdown

FeeRangeConfidence
ADU Permit Fee$2,400 – $7,200Verified
Plan Review Fee$1,200 – $4,680Verified

Inspections Required

Foundation and footing inspection per Texas Building Code

Foundation and footing inspection per Texas Building Code

Framing and structural member verification

Framing and structural member verification

Electrical rough-in and separate service panel inspection

Electrical rough-in and separate service panel inspection

Plumbing rough-in and fixture installation inspection

Plumbing rough-in and fixture installation inspection

Mechanical systems and HVAC installation inspection

Mechanical systems and HVAC installation inspection

Final inspection and Certificate of Occupancy

Final inspection and Certificate of Occupancy

Authority Sources

Data on this page is sourced from official records published by the permitting authority. Always verify requirements directly before submitting.

City of Irving Development Services

Last verified: February 15, 2026

2 sources referenced

Official page
Irving ADU Development Guidelines

Verified February 15, 2026

Official page
City of Irving Zoning Ordinance

Verified February 15, 2026

Portal guide
Irving Permits Portal

Verified February 15, 2026

Fee schedule

Frequently Asked Questions

Do I need a adu permit in Irving?
Yes. Irving requires a adu permit for this type of project. Submitting without a permit may result in fines, required removal, or complications when selling your property.
How long does adu permit approval take in Irving?
Processing times in Irving vary depending on project complexity and current review volume. The process involves 7 steps. Contact Irving Development Services for current timelines.
What documents are required for a adu permit in Irving?
Irving requires 7 documents including Building Permit Application, Architectural Drawings, Site Plan, Zoning Verification Letter, and others. See the full list above for details.
What happens if I build without a adu permit in Irving?
Building without a permit in Irving can result in stop-work orders, fines, required removal of work, difficulty selling your property, and insurance complications. It is strongly recommended to obtain proper permits before starting work.
Can PermitMagic help prepare my adu permit submission in Irving?
Yes. PermitMagic generates a submission-ready packet tailored to Irving's requirements, including a document checklist, workflow steps, and authority references. Start a permit plan to get your personalized packet.
How much does a adu permit cost in Irving?
ADU permit fees in Irving typically range from $3,600 to $11,880, depending on project scope. Fees may include building permit, plan review, and technology surcharges. Verify current fees with Irving.

Related Permits

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Answer a few project questions and get a adu permit packet for Irving, Texas — with every document, form, and fee organized for submission.

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Sources & Citations

All regulatory information on this page is sourced from official government publications. Always verify requirements directly with your local Authority Having Jurisdiction (AHJ) before submission.

  1. [1]City of Irving Development ServicesIrving ADU Development Guidelineshttps://www.ci.irving.tx.us/development(verified Feb 15, 2026)
  2. [2]City of Irving Development ServicesCity of Irving Zoning Ordinancehttps://library.municode.com/tx/irving(verified Feb 15, 2026)
  3. [3]City of Irving Development ServicesIrving Permits Portalhttps://www.ci.irving.tx.us/permits(verified Feb 15, 2026)
  4. [4]City of Irving Development ServicesIrving Building Permit and Development Fee Schedulehttps://www.ci.irving.tx.us/development(verified Feb 15, 2026)