520 Marine St

Boulder, CO 80302

11 permits on record here. The newest, Jan 13: Replacement furnace Re: Historic District-No work is going to be done on the outside of the home' PLEASE. Boulder publishes permits without map coordinates, so this address has no map and no quarter-mile list.

1. Replacement furnace Re: Historic District-No work is going to be done on the outside of the home' PLEASE…

   Mechanical (HVAC)
   Jan 13$8,539
2. Install a new 4 zone Mitsubishi mini split heat pump system

   Mechanical (HVAC)
   Jan 3, 2024$19,281
3. *Voided for inactivity - no inspections within 180 days* Total tear-off and re-roof of existing detached…

   Roofing
   May 1, 2018$1,356
4. Tear-off & reroof of SFD, 22.33 squares of asphalt shingles on a pitch represented as 12/12 on original roof

   Roofing
   Feb 24, 2016$7,800
5. One story addition of 315 sf to existing single family residence for new master suite

   Plumbing
   Jul 27, 2015$4,000
6. One story addition of 315 sf to existing single family residence for new master suite

   Mechanical (HVAC)
   Jul 27, 2015$300
7. One story addition of 315 sf to existing single family residence for new master suite

   Electrical
   Jul 27, 2015$1,000
8. One story addition of 315 sf to existing single family residence for new master suite

   Addition
   Jul 27, 2015$84,050
9. Install 115,000 BTU replacement forced air furnace

   Mechanical (HVAC)
   Dec 12, 2002$1,706
10. Roofing reroof - asphalt shingles

    Roofing
    Oct 12, 1989$1,150
11. Fence 6 foot wood fence

    Fence, wall or deck
    Jun 17, 1988$2,000

• 505 Marine St newest permit Jul 31, 2026
• 504 Marine St newest permit Sep 10, 2026
• 540 Marine St newest permit Dec 19, 2025
• 558 Marine St newest permit Jun 3, 2026
• 601 Marine St newest permit Apr 2, 2026
• 434 Marine St newest permit Aug 14, 2025
• 611 Marine St newest permit Nov 12, 2025
• 619 Marine St 2 newest permit Jul 1, 2025
• 623 Marine St newest permit Jul 13, 2026
• 625 Marine St newest permit Mar 26, 2026

Boulder Planning and Development Services updated its data Oct 8, 2026. We checked it Oct 8, 13:26 UTC. See the city's official records.

At this address: every permit the city holds. Nearby: permits from the last two years, from our copy of the city's data.

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