New two-story single family home that includes a full finished basement
New building at 428 Alpine Ave, Boulder
Boulder Planning and Development Services permit BLD-SFD2025-00261: issued Dec 10, 2025 for new building work at 428 Alpine Ave. New two-story single family home that includes a full finished basement. Total of 4 bedrooms and 3 1/2 bathrooms. Basement (1,458 sf) includes rec. room, 2 bedrooms and full bathroom. First floor (1,458 sf) includes dining room, living room, kitchen, mudroom, pantry, powder room, covered front porch (196 sf). Second floor (1,004 sf) includes 2 bedrooms, 1 office, and 2 full baths. Rear yard contains detached garage (440 SF) permitted separately with roof deck above and rear deck (424 SF). *See BLD-ACC2025-00060 for detached garage and HIS2025-00043*.
- Permit number
- BLD-SFD2025-00261
- Issued
- Type of work
- New building
- Status
- Issued
- Reported cost
- $1,100,000
- ZIP code
- 80304
- City's category
- Building Permit - Single Family Detached Dwelling, New
- 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 428 Alpine Ave, and what's permitted nearby
Boulder Planning and Development Services updated its data Oct 6, 2026. We checked it Oct 6, 17:11 UTC. See the city's official records.
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