# Building permits at 521 Iris Ave, Boulder, CO

Five permits on record here. The newest, Sep 2: 126 S.F. front porch addition. 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 2, 2026 | Addition | 126 s.f. front porch addition. No interior work or expansion of habitable space - porch only. 1/21/2026 Revision of scope to include 1 exterior door. | $26,500 | [BLD-SFD2025-00508](https://nearbypermits.com/boulder/permit/BLD-SFD2025-00508/) |
| Jul 17, 2023 | Addition | Kitchen remodel and new covered porch. Removal of load-bearing walls to combine two smaller rooms - likely dining room and kitchen - into one large room for new kitchen layout. Scope includes removal of stairs into existing garage and infill of existing door into garage, two new skylights in kitchen | $125,000 | [BLD-SFD2022-00544](https://nearbypermits.com/boulder/permit/BLD-SFD2022-00544/) |
| Jun 16, 2020 | Roofing | *Total tear-off & reroof of SFD, 16 squares of dimensional shingles on a pitch represented as 4/12. All roof materials shall be installed per manufacturer?s specs. Mid-roof inspection required if pitch is less than 4/12. All roof covering materials shall be listed as Class A as tested in accordance  | $2,500 | [RFG2020-00423](https://nearbypermits.com/boulder/permit/RFG2020-00423/) |
| Mar 7, 2013 | Mechanical (HVAC) | Replacement forced-air furnace. | $4,085 | [PMT2013-00873-MEC](https://nearbypermits.com/boulder/permit/PMT2013-00873-MEC/) |
| May 28, 1998 | Addition | Exterior deck on north side and 8 FT by 8 FT shed the original general permit | $7,000 | [PMT1998-03263](https://nearbypermits.com/boulder/permit/PMT1998-03263/) |

## More on this street

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

- [541 Iris Ave](https://nearbypermits.com/boulder/address/541-iris-ave/): newest permit Oct 21, 2025
- [425 Iris Ave](https://nearbypermits.com/boulder/address/425-iris-ave/): newest permit May 27, 2025
- [620 Iris Ave](https://nearbypermits.com/boulder/address/620-iris-ave/): newest permit May 15, 2026
- [420 Iris Ave](https://nearbypermits.com/boulder/address/420-iris-ave/): newest permit Jun 23, 2026
- [625 Iris Ave](https://nearbypermits.com/boulder/address/625-iris-ave/): newest permit Sep 4, 2025
- [630 Iris Ave](https://nearbypermits.com/boulder/address/630-iris-ave/): newest permit Jan 2, 2026
- [410 Iris Ave](https://nearbypermits.com/boulder/address/410-iris-ave/): newest permit Mar 18, 2026
- [405 Iris Ave](https://nearbypermits.com/boulder/address/405-iris-ave/): newest permit Jan 30, 2026
- [655 Iris Ave](https://nearbypermits.com/boulder/address/655-iris-ave/): newest permit Oct 24, 2025
- [675 Iris Ave](https://nearbypermits.com/boulder/address/675-iris-ave/): newest permit Dec 15, 2025

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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 11:27 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/521-iris-ave/