Project is a Passive House Institute "EnerPHIT" energy retrofit with approximately 210 square foot living
Addition at 2855 Carnegie Dr, Boulder
Boulder Planning and Development Services permit BLD-SFD2023-00403: issued Mar 18, 2024 for addition work at 2855 Carnegie Dr. Project is a Passive House Institute "EnerPHIT" energy retrofit with approximately 210 square foot living room addition and reworking of existing 1963 split level home (existing total 1992 sf) to increase accessibility. Alteration includes removal of asbestos containing drywall (State Permit), updating/rewiring electrical, insulating exterior walls and replacing windows. Project includes elimination of existing uninsulated 6'2? crawlspace below framed floor in great room which will be replaced with slab on grade to allow for proper drainage, insulation and create an accessible level. Project includes adding a bathroom, and repairing existing 2 bathrooms. Roof structure to remain (no substantial structural work to roof), project includes adding additional roof insulation to improve from R21 to R72, new metal roof for ignition resistance. New cementitious exterior finish for ignition resistance. Existing gas boiler to be removed (heating with mini-splits under permit # MEC2022-01109), project includes new heat-pump hot water heater to replace gas water heater and new ERV (fresh air energy recovery ventilator). Project historical review #HIS2023-00217.
- Permit number
- BLD-SFD2023-00403
- Issued
- Type of work
- Addition
- Status
- Issued
- Reported cost
- $300,000
- ZIP code
- 80305
- City's category
- Building Permit - Single Family Detached Dwelling, Addition and Alteration
- City's status
- Issued
- 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 2855 Carnegie Dr, and what's permitted nearby
Boulder Planning and Development Services updated its data Oct 7, 2026. We checked it Oct 7, 09:43 UTC. See the city's official records.
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