# Building permits at 840 Cascade Ave, Boulder, CO

Three permits on record here. The newest, Sep 30: Replacing 8 windows like for like. 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 30, 2026 | Alteration or repair | Replacing 8 windows like for like. Stand-Alone Window Permits: Require rough and final siding inspections. Rough Inspections are for window flashings/ waterproofing only (bottoms of window openings). Pictures are acceptable for Rough inspection. Final Siding and Final Building will require in-person | $14,793 | [BLD-SFD2026-00498](https://nearbypermits.com/boulder/permit/BLD-SFD2026-00498/) |
| Dec 13, 2023 | Mechanical (HVAC) | Void-180 days no activity install replacement 96% 70k btu furnace | $8,559 | [MEC2023-01863](https://nearbypermits.com/boulder/permit/MEC2023-01863/) |
| Nov 12, 2015 | Mechanical (HVAC) | Repalcement of forced air furnace (60k BTU) in single family detached dwelling. | $3,280 | [PMT2015-05032-MEC](https://nearbypermits.com/boulder/permit/PMT2015-05032-MEC/) |

## More on this street

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

- [875 Cascade Ave](https://nearbypermits.com/boulder/address/875-cascade-ave/): newest permit Aug 11, 2026
- [750 Cascade Ave](https://nearbypermits.com/boulder/address/750-cascade-ave/): newest permit Jan 27, 2026
- [700 Cascade Ave](https://nearbypermits.com/boulder/address/700-cascade-ave/): newest permit Apr 2, 2025
- [1177 Cascade Ave](https://nearbypermits.com/boulder/address/1177-cascade-ave/): newest permit Nov 5, 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 23:22 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

All 3 permits at this address: https://nearbypermits.com/boulder/address/840-cascade-ave/