What documents do I need for a ADU permit in Denver?

Denver requires 6 documents for a ADU permit, including: Building Permit Application, Architectural Plans, Site Plan, Structural Calculations, Utility Plans, and more.

What are the most commonly missing items for Denver ADU permits?

Common missing items include detailed site plans with scale and dimensions, equipment specification sheets, and NEC labeling plans. A complete checklist helps avoid plan-check rejections.

Do I need a adu permit in Denver?

Yes. Denver 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 Denver?

Processing times in Denver vary depending on project complexity and current review volume. The process involves 7 steps. Contact Denver Development Services for current timelines.

What documents are required for a adu permit in Denver?

Denver requires 6 documents including Building Permit Application, Architectural Plans, Site Plan, Structural Calculations, and others. See the full list above for details.

What happens if I build without a adu permit in Denver?

Building without a permit in Denver 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 Denver?

Yes. PermitMagic generates a submission-ready packet tailored to Denver'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 Denver?

ADU permit fees in Denver typically range from $6,750 to $23,100, depending on project scope. Fees may include building permit, plan review, and technology surcharges. Verify current fees with Denver.

ADU Permit Requirements in Denver, Colorado

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

Build My Permit Packet

Key Facts

Permit required: Yes
Submission method: Online
Typical fee range: $6,750 – $23,100
Review time: Varies by jurisdiction
Inspections: 6 inspections required

VerifiedLast verified: Feb 15, 20262 verified sources

Permit Requirements (6 items)

6 required

📋 Forms & Applications(1)

📐 Plans & Diagrams(3)

📄 Supporting Documents(2)

Avoid rejections — generate a submission-ready packet

Get a personalized ADU permit packet for Denver, Colorado — tailored to your project details.

Required forms: Building Permit Application, and more
Pre-filled templates: Permit Cover Sheet
Fee breakdown: $2,250–$14,000 estimated total
Step-by-step Denver Community Planning and Development portal submission guide
Inspection prep checklist (6 items)
Personalized for your specific project details

Build My Permit Packet

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Permit Process

Follow these steps to submit your permit application through Denver Community Planning and Development.

1
Pre-Application Meeting
Discuss ADU project with Denver staff to confirm zoning compliance and design requirements
2
Online Submission via ePermit
Submit application and all documents through Denver ePermit online system
You'll need: Building Permit Application, Architectural Plans, Site Plan, Structural Calculations, Utility Plans
3
Plan Review
CPD reviewers examine plans for compliance with Denver Zoning Code and Building Code
4
Respond to Comments
Address reviewer comments and submit revised plans if required
5
Pay Permit Fees
Pay permit fees calculated based on project valuation
6
Construction Phase with Inspections
Schedule required inspections during construction phases
7
Final Approval and Use Certificate
Obtain approval to use certificate after final inspection

Fees and Timeline

Fee Breakdown

Fee	Range	Confidence
ADU Permit Fee	$4,500 – $14,000	Verified
Plan Review Fee	$2,250 – $9,100	Verified

Inspections Required

Foundation inspection per IBC standards

Framing inspection and structural verification

Electrical rough-in and panel inspection

Plumbing rough-in and fixture inspection

Mechanical and HVAC system inspection

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.

Denver Community Planning and Development

Last verified: February 15, 2026

2 sources referenced

Official page

Denver Zoning Code Section 59-1-602 (ADU)

Verified February 15, 2026

Portal guide

Denver ePermit System

Verified February 15, 2026

Official page

Denver Design Guide and ADU Standards

Verified February 15, 2026

Frequently Asked Questions

Do I need a adu permit in Denver?: Yes. Denver 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 Denver?: Processing times in Denver vary depending on project complexity and current review volume. The process involves 7 steps. Contact Denver Development Services for current timelines.
What documents are required for a adu permit in Denver?: Denver requires 6 documents including Building Permit Application, Architectural Plans, Site Plan, Structural Calculations, and others. See the full list above for details.
What happens if I build without a adu permit in Denver?: Building without a permit in Denver 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 Denver?: Yes. PermitMagic generates a submission-ready packet tailored to Denver'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 Denver?: ADU permit fees in Denver typically range from $6,750 to $23,100, depending on project scope. Fees may include building permit, plan review, and technology surcharges. Verify current fees with Denver.