# Building permits at 2233 Mariposa Ave, Boulder, CO

15 permits on record here. The newest, Feb 21, 2025: Single Head in new remodel. 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 |
|---|---|---|---|---|
| Feb 21, 2025 | Fire systems | Single Head in new remodel. ADU is located behind the main structure. (Fspm) | $5,925 | [FIR2025-00062](https://nearbypermits.com/boulder/permit/FIR2025-00062/) |
| Oct 31, 2024 | Fence, wall or deck | Level 2 Alteration to update 300 SF of an existing 520 SF garage to meet current ADU requirements and codes. The accessory building currently functions as a 1 car garage and a 229 SF studio space. The Studio space will be expanded to 300 SF and be used as an ADU. See enf2023-00650. | $80,000 | [BLD-ACC2023-00121](https://nearbypermits.com/boulder/permit/BLD-ACC2023-00121/) |
| Feb 24, 2022 | Plumbing | Level 2 interior only remodel of the 2nd floor (519 sf). The work consists of minor, non-structural reconfigurations of the existing bathroom, closet and bedroom, replacing all plumbing fixtures, windows, air-sealing and re-insulating exterior walls, adding additional blownin cellulose insulation to | $7,000 | [PLB2022-00093](https://nearbypermits.com/boulder/permit/PLB2022-00093/) |
| Feb 24, 2022 | Mechanical (HVAC) | Level 2 interior only remodel of the 2nd floor (519 sf). The work consists of minor, non-structural reconfigurations of the existing bathroom, closet and bedroom, replacing all plumbing fixtures, windows, air-sealing and re-insulating exterior walls, adding additional blownin cellulose insulation to | $7,000 | [MEC2022-00255](https://nearbypermits.com/boulder/permit/MEC2022-00255/) |
| Feb 24, 2022 | Electrical | Level 2 interior only remodel of the 2nd floor (519 sf). The work consists of minor, non-structural reconfigurations of the existing bathroom, closet and bedroom, replacing all plumbing fixtures, windows, air-sealing and re-insulating exterior walls, adding additional blownin cellulose insulation to | $1,000 | [ELE2022-00203](https://nearbypermits.com/boulder/permit/ELE2022-00203/) |
| Feb 24, 2022 | Alteration or repair | Level 2 interior only remodel of the 2nd floor (519 sf). The work consists of minor, non-structural reconfigurations of the existing bathroom, closet and bedroom, replacing all plumbing fixtures, windows, air-sealing and re-insulating exterior walls, adding additional blownin cellulose insulation to | $38,494 | [BLD-SFD2022-00067](https://nearbypermits.com/boulder/permit/BLD-SFD2022-00067/) |
| Aug 18, 2017 | Alteration or repair | Permit for the conversion of an existing front sunroom into a front entry porch for a single family detached dwelling. Deck above the front entry to be decreased in size so that the only upper deck is under existing roof line. | $10,000 | [PMT2017-03335](https://nearbypermits.com/boulder/permit/PMT2017-03335/) |
| May 31, 2016 | Electrical | Installation of a 2.52 kW grid tied flush mount PV system on the roof of a single family detached dwelling in two arrays. | $14,041 | [PMT2016-02485-ELE](https://nearbypermits.com/boulder/permit/PMT2016-02485-ELE/) |
| Apr 8, 2016 | Roofing | Owner/contractor reroof of single family dwelling, 14 squares of asphalt shingles on a pitch represented as 6/12. Shingles to comply with ASTM D225 or D3462 and D3161 Class F. Wrappers shall bear a label demonstrating compliance with ASTM D 3161, Class F; or ASTM D 7158, Class G for east of Broadway | $4,850 | [PMT2016-01527-RFG](https://nearbypermits.com/boulder/permit/PMT2016-01527-RFG/) |
| Apr 10, 2015 | Mechanical (HVAC) | Addition and remodel for a single family dwelling. Rear main level porch and upper deck will be removed. Main level to be extended over crawl space for new family room. New covered porch to extend from family room. Remodel area to include kitchen and extended bedroom. | $2,000 | [PMT2015-00630-MEC](https://nearbypermits.com/boulder/permit/PMT2015-00630-MEC/) |
| Apr 10, 2015 | Electrical | Addition and remodel for a single family dwelling. Rear main level porch and upper deck will be removed. Main level to be extended over crawl space for new family room. New covered porch to extend from family room. Remodel area to include kitchen and extended bedroom. | $2,500 | [PMT2015-00630-ELE](https://nearbypermits.com/boulder/permit/PMT2015-00630-ELE/) |
| Apr 10, 2015 | Addition | Addition and remodel for a single family dwelling. Rear main level porch and upper deck will be removed. Main level to be extended over crawl space for new family room. New covered porch to extend from family room. Remodel area to include kitchen and extended bedroom. | $65,000 | [PMT2015-00630](https://nearbypermits.com/boulder/permit/PMT2015-00630/) |
| Oct 3, 2003 | Mechanical (HVAC) | New Forced Air Furnace | $3,236 | [PMT2003-20090-MEC](https://nearbypermits.com/boulder/permit/PMT2003-20090-MEC/) |
| Feb 16, 2001 | Fence, wall or deck | Installation of new cedar fence along rear property lines and rear portions of the side yards. | $1,374 | [PMT2001-00541-FEN](https://nearbypermits.com/boulder/permit/PMT2001-00541-FEN/) |
| Sep 8, 1993 | Alteration or repair | Enclose existing porch to create sunroom the original general permit number is | $8,000 | [PMT1993-06549](https://nearbypermits.com/boulder/permit/PMT1993-06549/) |

## Zoning requests nearby

We don't list zoning cases for Boulder yet. Look them up on the city's Board of Zoning Adjustment page: https://bouldercolorado.gov/government/board-commission/board-zoning-adjustment

## More on this street

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

- [2220 Mariposa Ave](https://nearbypermits.com/boulder/address/2220-mariposa-ave/): newest permit Nov 3, 2025
- [2247 Mariposa Ave](https://nearbypermits.com/boulder/address/2247-mariposa-ave/): newest permit Aug 20, 2026
- [2210 Mariposa Ave](https://nearbypermits.com/boulder/address/2210-mariposa-ave/): newest permit Feb 6, 2025
- [2260 Mariposa Ave](https://nearbypermits.com/boulder/address/2260-mariposa-ave/): newest permit Oct 3, 2025
- [2122 Mariposa Ave](https://nearbypermits.com/boulder/address/2122-mariposa-ave/): newest permit Jan 29, 2026
- [2119 Mariposa Ave](https://nearbypermits.com/boulder/address/2119-mariposa-ave/): newest permit Mar 28, 2025
- [2102 Mariposa Ave](https://nearbypermits.com/boulder/address/2102-mariposa-ave/): newest permit Jun 15, 2026
- [2043 Mariposa Ave](https://nearbypermits.com/boulder/address/2043-mariposa-ave/): newest permit May 6, 2025
- [2033 Mariposa Ave](https://nearbypermits.com/boulder/address/2033-mariposa-ave/): newest permit Aug 26, 2026
- [2022 Mariposa Ave](https://nearbypermits.com/boulder/address/2022-mariposa-ave/): newest permit Dec 11, 2025

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Source: Boulder Planning and Development Services permit data (https://www.arcgis.com/home/item.html?id=e3ff6248e4a547bcba31025d2c5c9fee). Checked 2026-10-10 14:59 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

All 15 permits at this address: https://nearbypermits.com/boulder/address/2233-mariposa-ave/
