303 Construction’s Guide to Denver Building Permits

Securing a building permit is one of the most crucial steps before starting any new construction, renovation, or addition. At 303 Construction, we handle the entire permit application process, ensuring your project complies with Denver’s building codes.

1. What Projects Require a Permit?

The City of Denver requires permits for:

• New home or commercial building construction.
• Major renovations or structural modifications.
• Electrical, plumbing, or mechanical system upgrades.
• Foundation work or basement finishing.
• Accessory Dwelling Units (ADUs) and garage conversions.

2. Steps to Obtain a Building Permit

Step 1: Determine Permit Type

• Residential vs. Commercial Permits – Different rules apply depending on the project.
• Trade-Specific Permits – Electrical, plumbing, and HVAC work may require separate permits.

Step 2: Submit Plans & Application

• Detailed construction plans and blueprints must be submitted to Denver Development Services.
• A zoning check ensures the project aligns with local laws.

Step 3: Permit Review & Approval

• The city reviews plans for structural integrity, fire safety, and ADA compliance.
• Approval times vary based on project complexity.

Step 4: Inspections & Final Approval

• Denver requires multiple inspections throughout construction.
• Once approved, a Certificate of Occupancy (CO) is issued.

3. How 303 Construction Simplifies the Permit Process

• Expert guidance on permit applications & required documentation.
• Faster approvals through city compliance strategies.
• Seamless coordination with local building inspectors.

Need help securing permits in Denver? 303 Construction makes the process stress-free—contact us today!