# Building permits at 4430 Grinnell Ave, Boulder, CO

Four permits on record here. The newest, Sep 3: Supply and install like for like 125-amp service. Boulder publishes permits without map coordinates, so this address has no map and no quarter-mile list.

## At this address

| Date | Type | Work | Cost | Permit |
|---|---|---|---|---|
| Sep 3, 2026 | Electrical | Supply and install like for like 125-amp service. | $3,390 | [ELE2026-00568](https://nearbypermits.com/boulder/permit/ELE2026-00568/) |
| Sep 26, 2000 | Plumbing | Set bathroom in basement. | $900 | [PMT2000-03957-PLB](https://nearbypermits.com/boulder/permit/PMT2000-03957-PLB/) |
| Sep 26, 2000 | Electrical | Set bathroom in basement. | $100 | [PMT2000-03957-ELE](https://nearbypermits.com/boulder/permit/PMT2000-03957-ELE/) |
| Sep 26, 2000 | Alteration or repair | Set bathroom in basement. | $3,500 | [PMT2000-03957](https://nearbypermits.com/boulder/permit/PMT2000-03957/) |

## More on this street

Other addresses on Grinnell Ave with permits, nearest house number first:

- [4450 Grinnell Ave](https://nearbypermits.com/boulder/address/4450-grinnell-ave/): newest permit Jun 16, 2025
- [4395 Grinnell Ave](https://nearbypermits.com/boulder/address/4395-grinnell-ave/): newest permit Jun 25, 2026
- [4497 Grinnell Ave](https://nearbypermits.com/boulder/address/4497-grinnell-ave/): newest permit Oct 27, 2025

---
Source: Boulder Planning and Development Services permit data (https://www.arcgis.com/home/item.html?id=e3ff6248e4a547bcba31025d2c5c9fee). Checked 2026-10-08 05:45 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

All 4 permits at this address: https://nearbypermits.com/boulder/address/4430-grinnell-ave/