Local guide · Demolition
Do You Need a Demolition Permit in Denver Metro?
Short version: tearing down a structure usually needs a permit, tearing out a deck usually does not, and the asbestos rule surprises everyone. Here is how it actually works.
The General Rule
Across Denver Metro, demolishing a building, meaning anything with a roof and walls like a garage or a habitable structure, requires a demolition permit from the city. Small accessory items like fences, most decks, and small sheds under each city's size threshold generally do not, though attached structures and anything with utilities connected change the answer. Every city draws the lines slightly differently, which is why we confirm permit requirements during the quote for any structural demo.
The Asbestos Rule Nobody Expects
Colorado regulates asbestos at the state level through CDPHE, and the rule is broader than people think: structures generally need a state-certified asbestos inspection before demolition, even houses built long after asbestos stopped being common, because the regulation triggers on the demolition, not the build year. Older garages and houses frequently test positive in floor tile, drywall texture, and insulation. If asbestos is found above threshold amounts, certified abatement happens before demo. This is the single biggest source of timeline and budget surprises in residential demolition, so we flag it on day one of any garage or structure quote.
Utility Disconnects
Before a structure comes down, electric and gas service to it must be disconnected and documented, and cities typically want the disconnect letters with the permit application. For a detached garage with a single power line this is straightforward; your utility schedules it. Water and sewer caps apply to habitable structures. We walk you through the sequence during the quote so demo day is not the day you discover a live line.
What This Means for Common Projects
- Fence removal: no permit in any metro city we work in.
- Deck removal: generally no permit for detached or ground-level decks; elevated attached decks can require one in some cities.
- Shed demolition: usually no permit below the city's accessory-structure threshold, commonly around 120 to 200 square feet, and no utilities connected.
- Garage demolition: permit required essentially everywhere, plus asbestos inspection and utility disconnect documentation.
- Interior demo: non-structural tear-out within a remodel typically rides on the remodel's building permit rather than a separate demo permit.
Permit rules change and every city is its own animal. Treat this page as orientation, not law. For your specific address, the city's building department gives the binding answer, and we confirm requirements as part of every structural demo quote.
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