PlainPermit

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Do I need a permit for a water heater replacement in Denver, CO?

Last verified: · Confidence: medium · Status: Verified from official source

Not legal advice. Always confirm with your local building department. Rules change, and your parcel's zoning, HOA, historic district, floodplain or utility work can change the answer. We show the official source and the date we last checked it so you can verify for yourself.
Permit required Confidence: medium

Residential water heater replacement requires a plumbing quick permit (issued online without plan review). Denver's plumbing exemptions cover only like-for-like sinks, disposals and toilets.

What changes the answer

Note: The quick-permit page lists 'Water heaters' under single-family plumbing quick permits; it does not state the rule in a single sentence.

Cost

Fee not confirmed for water heaters (the valuation table covers building permits); see Denver Development Fees. Unverified, confirm locally

Fee source: https://denvergov.org/Government/Agencies-Departments-Offices/Agencies-Departments-Offices-Directory/Community-Planning-and-Development/Plan-Review-Permits-and-Inspections/Development-Fees

Where to apply

Denver e-permits (Quick Permits > Plumbing)

Permitting authority: City and County of Denver Community Planning and Development (CPD). Landmark/historic district properties need a Certificate of Appropriateness and often a permit even for otherwise-exempt work.

Official sources

“Water heaters”

Source: https://denvergov.org/Government/Agencies-Departments-Offices/Agencies-Departments-Offices-Directory/Community-Planning-and-Development/Plan-Review-Permits-and-Inspections/Quick-Permits

“General repairs in one- and two-family dwellings and townhouse units that do not alter existing systems, including replacement of like units such as bathroom/kitchen sinks, garbage disposals and water closets.”

Source: https://denvergov.org/files/assets/public/v/3/community-planning-and-development/documents/ds/building-codes/2025_denver_building_code.pdf

Verified: · Status: verified · Confidence: medium

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