428 Alpine Ave

Boulder, CO 80304

428 Alpine Ave: demolition permitted Nov 20, 2025, a new building Dec 10, 2025.

Four permits on record here. The newest, Dec 10, 2025: New two-story single family home that includes a full finished basement. Boulder publishes permits without map coordinates, so this address has no map and no quarter-mile list.

1. New two-story single family home that includes a full finished basement

   New building
   Dec 10, 2025$1,100,000
2. New detached 2 car garage (440 SF) with roof deck *See BLD-SFD2025-00261*

   Fence, wall or deck
   Dec 4, 2025$200,000
3. Demolition of garage

   Demolition
   Nov 20, 2025not listed
4. Full Deconstruction of 1140 sq ft single family residential building A separate demo permit required for…

   Demolition
   Nov 20, 2025not listed

• 422 Alpine Ave newest permit May 30, 2025
• 417 Alpine Ave newest permit Dec 12, 2024
• 408 Alpine Ave newest permit Jun 5, 2026
• 402 Alpine Ave newest permit Apr 3, 2026
• 515 Alpine Ave newest permit Sep 16, 2025
• 533 Alpine Ave newest permit May 27, 2025
• 605 Alpine Ave newest permit Jan 16, 2026
• 618 Alpine Ave newest permit Mar 26, 2026
• 808 Alpine Ave newest permit May 22, 2025
• 815 Alpine Ave 2 newest permit Mar 16, 2026

Boulder Planning and Development Services updated its data Oct 6, 2026. We checked it Oct 6, 12:12 UTC. See the city's official records.

At this address: every permit the city holds. Nearby: permits from the last two years, from our copy of the city's data.

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