# Building permits at 1224 Mariposa Ave, Boulder, CO 11 permits on record here. The newest, Mar 12: Install (3) helical piers under the south center (rear) foundation (as shown on the attached plans) to help. 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 | |---|---|---|---|---| | Mar 12, 2026 | Alteration or repair | Install (3) helical piers under the south center (rear) foundation (as shown on the attached plans) to help mitigate future vertical movement of these areas. Work Area: helical pier holes (3'x 3' = 9' x Qty.3) = 27' square feet. | $9,302 | [BLD-SFD2026-00120](https://nearbypermits.com/boulder/permit/BLD-SFD2026-00120/) | | Apr 22, 2024 | Mechanical (HVAC) | Add 2 Ton 19 SEER2 minisplit to home (for cooling & supplemental heating) [condenser on left side of home] | $10,668 | [MEC2024-00513](https://nearbypermits.com/boulder/permit/MEC2024-00513/) | | Nov 20, 2023 | Alteration or repair | Install seven (7) Grip-Tite Helical Piers along the northern and eastern foundation walls of the residence to stabilize foundation movement. Work Area: depth for piers 5' (hole 4'x 3' = 12' x Qty.7 piers) = 84' square feet. | $16,880 | [BLD-SFD2023-00395](https://nearbypermits.com/boulder/permit/BLD-SFD2023-00395/) | | Dec 1, 2022 | Alteration or repair | Stabilize the SE foundation by installing (6) helical piers to help mitigate vertical movement of that area. Work Area: excavation for helical piers at 3' deep is (3' x 3') x (Qty. 6) = 54' square feet | $20,301 | [BLD-SFD2022-00521](https://nearbypermits.com/boulder/permit/BLD-SFD2022-00521/) | | Oct 6, 2016 | Roofing | Total tear-off & reroof of SFD, 36 squares of TPO with 1/4-inch Densdeck on a pitch represented as 2/12. All roof materials shall be installed per manufacturer's specs. Mid-roof inspection required if pitch is less than 4/12. | $25,000 | [PMT2016-04661-RFG](https://nearbypermits.com/boulder/permit/PMT2016-04661-RFG/) | | Mar 11, 2016 | Plumbing | Addition (78 sqft) and and full interior remodel (2314 sqft) to a one story single family detached dwelling. | $9,000 | [PMT2016-00177-PLB](https://nearbypermits.com/boulder/permit/PMT2016-00177-PLB/) | | Mar 11, 2016 | Mechanical (HVAC) | Addition (78 sqft) and and full interior remodel (2314 sqft) to a one story single family detached dwelling. | $15,000 | [PMT2016-00177-MEC](https://nearbypermits.com/boulder/permit/PMT2016-00177-MEC/) | | Mar 11, 2016 | Electrical | Addition (78 sqft) and and full interior remodel (2314 sqft) to a one story single family detached dwelling. | $17,000 | [PMT2016-00177-ELE](https://nearbypermits.com/boulder/permit/PMT2016-00177-ELE/) | | Mar 11, 2016 | Addition | Addition (78 sqft) and and full interior remodel (2314 sqft) to a one story single family detached dwelling. | $200,000 | [PMT2016-00177](https://nearbypermits.com/boulder/permit/PMT2016-00177/) | | Nov 10, 2015 | Mechanical (HVAC) | Replacement of forced air furnace (60k BTU, 80%) in single family dwelling. | $8,307 | [PMT2015-05038-MEC](https://nearbypermits.com/boulder/permit/PMT2015-05038-MEC/) | | Mar 5, 2010 | Electrical | Replacement of electrical service panel, 125 amps. | $750 | [PMT2010-00815-ELE](https://nearbypermits.com/boulder/permit/PMT2010-00815-ELE/) | ## 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: - [1225 Mariposa Ave](https://nearbypermits.com/boulder/address/1225-mariposa-ave/): newest permit Aug 7, 2026 - [1330 Mariposa Ave](https://nearbypermits.com/boulder/address/1330-mariposa-ave/): newest permit May 7, 2026 - [1400 Mariposa Ave](https://nearbypermits.com/boulder/address/1400-mariposa-ave/): newest permit Dec 3, 2025 - [1401 Mariposa Ave](https://nearbypermits.com/boulder/address/1401-mariposa-ave/): newest permit Aug 29, 2025 - [1512 Mariposa Ave](https://nearbypermits.com/boulder/address/1512-mariposa-ave/): newest permit Apr 22, 2026 - [1660 Mariposa Ave](https://nearbypermits.com/boulder/address/1660-mariposa-ave/): newest permit Aug 13, 2026 - [1709 Mariposa Ave](https://nearbypermits.com/boulder/address/1709-mariposa-ave/): newest permit Sep 4, 2026 - [1739 Mariposa Ave](https://nearbypermits.com/boulder/address/1739-mariposa-ave/): newest permit Jul 27, 2026 - [1809 Mariposa Ave](https://nearbypermits.com/boulder/address/1809-mariposa-ave/): newest permit Feb 24, 2026 - [1816 Mariposa Ave](https://nearbypermits.com/boulder/address/1816-mariposa-ave/): newest permit Sep 24, 2026 --- Source: Boulder Planning and Development Services permit data (https://www.arcgis.com/home/item.html?id=e3ff6248e4a547bcba31025d2c5c9fee). Checked 2026-10-13 06:08 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/ All 11 permits at this address: https://nearbypermits.com/boulder/address/1224-mariposa-ave/