Residential Permit Application Submittal Requirements
- Read and comply with the Permit guide
- Attach to the application:
- A gas pipe isometric
- Manufacturer’s instructions for the new tankless water heater
- Additional requirements and documentation
- The Electrical Inspector may require additional electrical drawings from the Electrical Contractor, or an Electrical Engineer based on the conditions encountered on site for the existing house panel
- Compliance with Arapahoe County's currently adopted codes, design criteria and amendments
- Attachments must comply with these requirements
- Complete your application using Customer Access
- Select the Residential Remodel > Residential Tankless Water Heater or search by ‘tankless water heater’
- Pay for your permit online
- Estimate your fees
- Review the Fee Schedule
- A plans reviewer will check your application, plans, and attachments for completeness and accuracy before your permit is issued
- You may be contacted with questions or requests for revisions through the Customer Access Portal
Ready to apply? Click Customer Access to get started

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