# Building permits at 417 Mapleton Ave B, Boulder, CO

Six permits on record here. The newest, Oct 15, 2024: 180-day one-time extension request granted. 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 |
|---|---|---|---|---|
| Oct 15, 2024 | Alteration or repair | 180-day one-time extension request granted. Inspections must be performed by 11/14/2026. Alteration to an existing unit in a multifamily building. Remove one window in primary bathroom and add one in different location to restore original configuration. Reconfigure guest and primary bathrooms. Reloc | $190,000 | [BLD-MFD2024-00069](https://nearbypermits.com/boulder/permit/BLD-MFD2024-00069/) |
| Feb 23, 2010 | Mechanical (HVAC) | Addition of gas log fireplace and piping to remodel permit PMT2009-04854 per landmark approval HIS2010-00035. | $1,200 | [PMT2010-00670-MEC](https://nearbypermits.com/boulder/permit/PMT2010-00670-MEC/) |
| Nov 25, 2009 | Plumbing | Remodel of existing condo, to include removal of interior wall, reconfiguration of kitchen, bathrooms and master bedroom. Plumbing fixture relocation only. | $3,200 | [PMT2009-04854-PLB](https://nearbypermits.com/boulder/permit/PMT2009-04854-PLB/) |
| Nov 25, 2009 | Electrical | Remodel of existing condo, to include removal of interior wall, reconfiguration of kitchen, bathrooms and master bedroom. Plumbing fixture relocation only. | $2,800 | [PMT2009-04854-ELE](https://nearbypermits.com/boulder/permit/PMT2009-04854-ELE/) |
| Nov 25, 2009 | Alteration or repair | Remodel of existing condo, to include removal of interior wall, reconfiguration of kitchen, bathrooms and master bedroom. Plumbing fixture relocation only. | $45,552 | [PMT2009-04854](https://nearbypermits.com/boulder/permit/PMT2009-04854/) |
| Oct 18, 2004 | Fence, wall or deck | Install new 3 foot high wrought iron fence. Fence is to be 18 inches behind the sidewalk on private property. | $5,000 | [PMT2004-04050-FEN](https://nearbypermits.com/boulder/permit/PMT2004-04050-FEN/) |

## More on this street

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

- [403 Mapleton Ave](https://nearbypermits.com/boulder/address/403-mapleton-ave/): newest permit Feb 4, 2026
- [433 Mapleton Ave](https://nearbypermits.com/boulder/address/433-mapleton-ave/): newest permit Jan 26, 2026
- [501 Mapleton Ave](https://nearbypermits.com/boulder/address/501-mapleton-ave/): newest permit Nov 18, 2024
- [520 Mapleton Ave](https://nearbypermits.com/boulder/address/520-mapleton-ave/): newest permit Jan 14, 2025
- [312 Mapleton Ave](https://nearbypermits.com/boulder/address/312-mapleton-ave/): newest permit Jan 9, 2026
- [311 Mapleton Ave](https://nearbypermits.com/boulder/address/311-mapleton-ave/): newest permit Sep 17, 2026
- [553 Mapleton Ave](https://nearbypermits.com/boulder/address/553-mapleton-ave/): newest permit Jan 29, 2025
- [625 Mapleton Ave](https://nearbypermits.com/boulder/address/625-mapleton-ave/): newest permit Feb 18, 2026
- [642 Mapleton Ave](https://nearbypermits.com/boulder/address/642-mapleton-ave/): newest permit May 19, 2026
- [704 Mapleton Ave](https://nearbypermits.com/boulder/address/704-mapleton-ave/): newest permit Jan 7, 2026

---
Source: Boulder Planning and Development Services permit data (https://www.arcgis.com/home/item.html?id=e3ff6248e4a547bcba31025d2c5c9fee). Checked 2026-10-06 15:53 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

All 6 permits at this address: https://nearbypermits.com/boulder/address/417-mapleton-ave-b/