Demolition Process in Colorado
1. Preliminary Planning & Site Assessment
- Project evaluation: Determine the scope — full structure removal or partial demolition (interior, selective, etc.).
- Site inspection: Assess the structure for potential hazards such as asbestos, lead paint, underground tanks, or utilities.
- Check zoning and restrictions: Confirm with the local municipality or county planning department that demolition is permitted for the property.
2. Asbestos Testing and Abatement (Mandatory in Colorado)
- Asbestos survey:
Before any demolition, Colorado Department of Public Health and Environment (CDPHE) requires a state-certified asbestos inspection by a licensed inspector. - Abatement (if necessary):
If asbestos-containing material (ACM) is found above regulated thresholds, it must be removed by a state-certified abatement contractor before demolition can proceed. - Documentation:
Keep copies of the asbestos inspection report and abatement clearance for submission with your demolition permit.
3. Notifications and Permitting
- CDPHE Notification:
A Demolition Notification Form must be submitted to CDPHE at least 10 working days prior to demolition (even if no asbestos is found).- This form can be submitted through the Colorado Environmental Online Services (CEOS) portal.
- Local Demolition Permit:
Obtain a demolition permit from the city or county building department (e.g., Denver, Aurora, Colorado Springs). Requirements typically include:- Asbestos inspection report
- Utility disconnection confirmations
- Site plan and scope of work
- Contractor license and insurance
- Demolition safety plan (for commercial jobs)
4. Utility Disconnections
Before demolition, all utilities must be properly disconnected and verified:
- Electric, gas, and water: Disconnect by the utility providers with written confirmation.
- Sewer line: Typically must be capped or removed to the main line, inspected, and approved by the local public works department.
- Other services: Telephone, cable, and internet lines removed or disconnected.
5. Site Preparation
- Erosion and sediment control: Install silt fencing or barriers if required by local environmental regulations.
- Hazard removal: Remove hazardous materials (fuel tanks, refrigerants, mercury devices).
- Tree protection: Protect trees or landscape features not slated for demolition if specified by the owner or city.
6. Demolition Activities
- Mobilization: Deliver necessary equipment (excavators, dump trucks, etc.) and set up safety barriers and signage.
- Structural demolition:
- For small residential: mechanical demolition using an excavator or manual teardown.
- For larger or commercial: follow engineered demolition sequencing for structural integrity and worker safety.
- Debris sorting: Separate recyclable materials (concrete, metal, wood) where possible.
- Dust control: Maintain water suppression throughout the process per CDPHE air quality rules.
7. Waste Removal and Disposal
- Hauling: Transport debris to a licensed landfill or recycling facility.
- Documentation: Maintain load tickets and disposal receipts.
- Hazardous waste: Dispose of asbestos, lead, or contaminated materials per CDPHE hazardous waste rules.
8. Site Restoration
- Backfilling and grading: Level the site with clean fill and compact to required grade.
- Erosion control: Seed or stabilize the ground if left undeveloped.
- Inspection: Final inspection by local building department to close out the permit.
9. Final Documentation
- Submit closeout documents:
- Demolition permit closure
- Utility disconnect confirmations
- Waste disposal records
- Asbestos clearance (if applicable)
- Receive final approval: Once approved, the demolition permit is officially closed.
10. Optional – Redevelopment Preparation
If new construction will follow:
- Conduct a post-demolition survey for foundation or site readiness.
- Begin soil testing or engineering evaluation as needed for redevelopment.
