# Building permits at 736 18th St, Boulder, CO

Nine permits on record here. The newest, Sep 24, 2025: All Structures must be permitted separately Total tear-off & reroof of SFD. 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 24, 2025 | Roofing | All Structures must be permitted separately Total tear-off & reroof of SFD, 23.84 squares of dimensional shingles on a pitch represented as 4/12. All roof materials shall be installed per manufacturer?s specs. Mid-roof inspection is required if 1) pitch is less than 4/12 or 2) for any roof type othe | $25,656 | [RFG2025-00743](https://nearbypermits.com/boulder/permit/RFG2025-00743/) |
| Mar 22, 2012 | Plumbing | Two story addition with finished basement to existing duplex. One unit will have 5 bedrooms with 4 baths and the other unit will have 4 bedrooms with 3 baths. | $7,500 | [PMT2012-00102-PLB](https://nearbypermits.com/boulder/permit/PMT2012-00102-PLB/) |
| Mar 22, 2012 | Mechanical (HVAC) | Two story addition with finished basement to existing duplex. One unit will have 5 bedrooms with 4 baths and the other unit will have 4 bedrooms with 3 baths. | $6,500 | [PMT2012-00102-MEC](https://nearbypermits.com/boulder/permit/PMT2012-00102-MEC/) |
| Mar 22, 2012 | Electrical | Two story addition with finished basement to existing duplex. One unit will have 5 bedrooms with 4 baths and the other unit will have 4 bedrooms with 3 baths. | $6,400 | [PMT2012-00102-ELE](https://nearbypermits.com/boulder/permit/PMT2012-00102-ELE/) |
| Mar 22, 2012 | Addition | Two story addition with finished basement to existing duplex. One unit will have 5 bedrooms with 4 baths and the other unit will have 4 bedrooms with 3 baths. | $306,283 | [PMT2012-00102](https://nearbypermits.com/boulder/permit/PMT2012-00102/) |
| Dec 6, 2001 | Mechanical (HVAC) | Replace Forced Air Furnace (45,000 BTU) | $2,109 | [PMT2001-05316-MEC](https://nearbypermits.com/boulder/permit/PMT2001-05316-MEC/) |
| Aug 12, 1999 | Alteration or repair | Add extrior overhang at entry of house the original general permit number is 9 | $7,500 | [PMT1999-06806](https://nearbypermits.com/boulder/permit/PMT1999-06806/) |
| Jun 16, 1999 | Alteration or repair | Installing piering to support foundation the original general permit number is | $2,800 | [PMT1999-04630](https://nearbypermits.com/boulder/permit/PMT1999-04630/) |
| Oct 29, 1990 | Roofing | Roofing reroof - three tab shgls | $1,200 | [PMT1990-R4306-RFG](https://nearbypermits.com/boulder/permit/PMT1990-R4306-RFG/) |

## More on this street

Other addresses on 18th St with permits, nearest house number first:

- [755 18th St](https://nearbypermits.com/boulder/address/755-18th-st/): newest permit Aug 18, 2026
- [760 18th St](https://nearbypermits.com/boulder/address/760-18th-st/): newest permit May 14, 2026
- [709 18th St](https://nearbypermits.com/boulder/address/709-18th-st/): newest permit Mar 16, 2026
- [765 18th St](https://nearbypermits.com/boulder/address/765-18th-st/): newest permit Jun 17, 2026
- [801 18th St](https://nearbypermits.com/boulder/address/801-18th-st/): newest permit Jan 15, 2025
- [811 18th St](https://nearbypermits.com/boulder/address/811-18th-st/): newest permit Aug 13, 2026
- [823 18th St 3](https://nearbypermits.com/boulder/address/823-18th-st-3/): newest permit Feb 21, 2025
- [864 18th St](https://nearbypermits.com/boulder/address/864-18th-st/): newest permit May 12, 2026
- [444 18th St](https://nearbypermits.com/boulder/address/444-18th-st/): newest permit Jun 11, 2026
- [401 18th St](https://nearbypermits.com/boulder/address/401-18th-st/): newest permit May 22, 2026

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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 17:52 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

All 9 permits at this address: https://nearbypermits.com/boulder/address/736-18th-st/