# Building permits at 434 Marine St, Boulder, CO

10 permits on record here. The newest, Aug 14, 2025: Replacement furnace and heat pump replacing air conditioner. 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 |
|---|---|---|---|---|
| Aug 14, 2025 | Mechanical (HVAC) | Replacement furnace and heat pump replacing air conditioner. Heat pump; 19 SEER2 and 3 ton capacity. Furnace; 70,000 BTU and 99% AFUE. All new plastic glued vents for fuel burning appliances must undergo pressure testing. To facilitate the inspection process, please provide photographic evidence of  | $17,321 | [MEC2025-01297](https://nearbypermits.com/boulder/permit/MEC2025-01297/) |
| Jul 6, 2012 | Mechanical (HVAC) | New Comfort Cooling | $4,925 | [PMT2012-20172-MEC](https://nearbypermits.com/boulder/permit/PMT2012-20172-MEC/) |
| Nov 30, 2010 | Mechanical (HVAC) | Replacement Forced Air Furnace | $3,468 | [PMT2010-20436-MEC](https://nearbypermits.com/boulder/permit/PMT2010-20436-MEC/) |
| Jan 12, 2009 | Electrical | One story addition to SFD for unconditioned storage space approx. 141 sf. | $400 | [PMT2008-05458-ELE](https://nearbypermits.com/boulder/permit/PMT2008-05458-ELE/) |
| Jan 12, 2009 | Addition | One story addition to SFD for unconditioned storage space approx. 141 sf. | $15,379 | [PMT2008-05458](https://nearbypermits.com/boulder/permit/PMT2008-05458/) |
| Jul 30, 2007 | Alteration or repair | Rebuild deck. Existing footings. 146 SF. Not more than 30 inches above grade. New stairs and handrails. | $2,500 | [PMT2007-03189](https://nearbypermits.com/boulder/permit/PMT2007-03189/) |
| Jul 18, 2006 | Roofing | Roofing permit for total tear-off and overlay of 30 squares of dimensional shingles at 6:12 slope, and modified bituminous at 1:12 slope. | $8,900 | [PMT2006-02861-RFG](https://nearbypermits.com/boulder/permit/PMT2006-02861-RFG/) |
| Feb 22, 1996 | New building | Detached shed 10 x 12 the original general permit number is 959392. | $2,000 | [PMT1995-09392](https://nearbypermits.com/boulder/permit/PMT1995-09392/) |
| Nov 24, 1987 | Addition | Addition. The original general permit number is m4859. | $25,000 | [PMT1987-M4859](https://nearbypermits.com/boulder/permit/PMT1987-M4859/) |
| Nov 16, 1987 | Mechanical (HVAC) | Mechanical replace furnace | $1,300 | [PMT1987-M5154-MEC](https://nearbypermits.com/boulder/permit/PMT1987-M5154-MEC/) |

## 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 Marine St with permits, nearest house number first:

- [504 Marine St](https://nearbypermits.com/boulder/address/504-marine-st/): newest permit Sep 10, 2026
- [505 Marine St](https://nearbypermits.com/boulder/address/505-marine-st/): newest permit Jul 31, 2026
- [520 Marine St](https://nearbypermits.com/boulder/address/520-marine-st/): newest permit Jan 13, 2026
- [540 Marine St](https://nearbypermits.com/boulder/address/540-marine-st/): newest permit Dec 19, 2025
- [558 Marine St](https://nearbypermits.com/boulder/address/558-marine-st/): newest permit Jun 3, 2026
- [601 Marine St](https://nearbypermits.com/boulder/address/601-marine-st/): newest permit Apr 2, 2026
- [611 Marine St](https://nearbypermits.com/boulder/address/611-marine-st/): newest permit Nov 12, 2025
- [619 Marine St 2](https://nearbypermits.com/boulder/address/619-marine-st-2/): newest permit Jul 1, 2025
- [623 Marine St](https://nearbypermits.com/boulder/address/623-marine-st/): newest permit Jul 13, 2026
- [625 Marine St](https://nearbypermits.com/boulder/address/625-marine-st/): newest permit Mar 26, 2026

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Source: Boulder Planning and Development Services permit data (https://www.arcgis.com/home/item.html?id=e3ff6248e4a547bcba31025d2c5c9fee). Checked 2026-10-13 22:44 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

All 10 permits at this address: https://nearbypermits.com/boulder/address/434-marine-st/