Replacement of an existing back flow valve not rated for vertical install with a new Deringer 8" valve in the
Fire systems at 3550 Frontier Ave, Boulder
Boulder Planning and Development Services permit FIR2025-00328: issued Oct 24, 2025 for fire systems work at 3550 Frontier Ave. replacement of an existing back flow valve not rated for vertical install with a new Deringer 8" valve in the vertical postion (FSN13) (BFP).
- Permit number
- FIR2025-00328
- Issued
- Type of work
- Fire systems
- Status
- Finished
- Reported cost
- $22,000
- ZIP code
- 80301
- City's category
- Fire Permit, Fire Permit
- City's status
- Letter of Completion
- Source
- Boulder Planning and Development Services permit data (this record)
Type of work and status are our own standard labels, so permits compare across cities. The city's wording is in the "City's category" and "City's status" rows. We show costs under $100 as not listed, because filers often enter $0 or $1 when the city doesn't require a cost.
All permits at 3550 Frontier Ave, and what's permitted nearby
Boulder Planning and Development Services updated its data Oct 6, 2026. We checked it Oct 6, 23:35 UTC. See the city's official records.
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