137 31st St

Boulder, CO 80305

Three permits on record here. The newest, Jul 29, 2025: 200 amp service upgrade and replacing sub panel. Boulder publishes permits without map coordinates, so this address has no map and no quarter-mile list.

1. 200 amp service upgrade and replacing sub panel

   Electrical
   Jul 29, 2025$6,986
2. Cold-climate heat pump with 3x mini-split units for heating/cooling

   Mechanical (HVAC)
   Jun 12, 2025$24,960
3. Mechanical WTR HTR

   Mechanical (HVAC)
   Apr 10, 1990$375

• 225 31st St newest permit Aug 28, 2026
• 235 31st St newest permit Mar 9, 2026
• 260 31st St newest permit Jul 21, 2025
• 270 31st St newest permit Jun 11, 2026
• 320 31st St newest permit Nov 6, 2024
• 330 31st St newest permit Oct 8, 2025
• 701 31st St newest permit Jul 21, 2026
• 765 31st St newest permit Oct 24, 2024
• 780 31st St newest permit Dec 1, 2025
• 2255 31st St newest permit Jul 31, 2026

Boulder Planning and Development Services updated its data Oct 6, 2026. We checked it Oct 6, 14:23 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.

For agents and scripts: This page as Markdown · JSON · Nearby as JSON · MCP tool permits_near