# Building permits at 613 Walnut St, Boulder, CO

Five permits on record here. The newest, Sep 18: Full deconstruct of the home. 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 18, 2026 | Demolition | full deconstruct of the home | Not listed | [DEM2026-00064](https://nearbypermits.com/boulder/permit/DEM2026-00064/) |
| Oct 6, 2009 | Plumbing | Installation of backflow preventer on domestic water service and install expansion tank on inlet to water heater. | $1,300 | [PMT2009-03937-PLB](https://nearbypermits.com/boulder/permit/PMT2009-03937-PLB/) |
| Nov 10, 1988 | Electrical | Electrical WIRE ELEC SIGN | $100 | [PMT1988-N2607-ELE](https://nearbypermits.com/boulder/permit/PMT1988-N2607-ELE/) |
| Nov 10, 1988 | Sign | Sign elec sign | $1,800 | [PMT1988-N2524-SGN](https://nearbypermits.com/boulder/permit/PMT1988-N2524-SGN/) |
| Nov 2, 1988 | Alteration or repair | Int finishes. The original general permit number is n2143. | $5,800 | [PMT1988-N2143](https://nearbypermits.com/boulder/permit/PMT1988-N2143/) |

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Source: Boulder Planning and Development Services permit data (https://www.arcgis.com/home/item.html?id=e3ff6248e4a547bcba31025d2c5c9fee). Checked 2026-10-06 08:15 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

All 5 permits at this address: https://nearbypermits.com/boulder/address/613-walnut-st/