Interior remodel of 1,659 sf (24% of existing floor area)
Addition at 3633 21st St, Boulder
Boulder Planning and Development Services permit BLD-SFD2022-00175: issued Nov 9, 2022 for addition work at 3633 21st St. Interior remodel of 1,659 sf (24% of existing floor area). Demo existing exterior fireplace. Addition of 445 sf roof deck above existing porch roof & associated door. New folding patio doors per plan. New basement door & landing/steps. New bathroom on upper floor. Remodel main floor kitchen, add new bar/kitchenette to basement. Includes all associated mechanical, electrical, & plumbing. Resubmitted for a reduction in scope to remove the lower level exterior patio and upper level roof deck.
- Permit number
- BLD-SFD2022-00175
- Issued
- Type of work
- Addition
- Status
- Finished
- Reported cost
- $150,000
- ZIP code
- 80304
- City's category
- Building Permit - Single Family Detached Dwelling, Addition and Alteration
- 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 3633 21st St, and what's permitted nearby
Boulder Planning and Development Services updated its data Oct 7, 2026. We checked it Oct 8, 04:53 UTC. See the city's official records.
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