4618 18th St

Boulder, CO 80304

Eight permits on record here. The newest, Oct 2, 2025: Installing 2X ducted ASHP 3-ton Condenser #1 location: in side yard replacing A/C 3-ton AHU replaces furnace. Boulder publishes permits without map coordinates, so this address has no map and no quarter-mile list.

1. Installing 2X ducted ASHP 3-ton Condenser #1 location: in side yard replacing A/C 3-ton AHU replaces furnace

   Mechanical (HVAC)
   Oct 2, 2025$23,244
2. Scope of Work Letter Addition of Three New Sprinkler Heads

   Fire systems
   Jun 4, 2012$350
3. Installation of 6.125 kw, rooftop

   Electrical
   Apr 17, 2012$34,500
4. Installation of cedar fence in front

   Fence, wall or deck
   Aug 10, 2006$3,200
5. New single family detached dwelling with 3,697 total square feet

   Plumbing
   Apr 3, 2006$7,142
6. New single family detached dwelling with 3,697 total square feet

   Mechanical (HVAC)
   Apr 3, 2006$5,998
7. New single family detached dwelling with 3,697 total square feet

   Electrical
   Apr 3, 2006$6,309
8. New single family detached dwelling with 3,697 total square feet

   New building
   Apr 3, 2006$432,399

• 4671 18th St newest permit Jul 11, 2025
• 4673 18th St newest permit Aug 22, 2025
• 4730 18th St newest permit Jun 17, 2025
• 3175 18th St newest permit Nov 5, 2025
• 3075 18th St newest permit Jan 28, 2026
• 3060 18th St newest permit Jan 14, 2026
• 3050 18th St newest permit Aug 26, 2026
• 3040 18th St newest permit Jun 9, 2026
• 3035 18th St newest permit Dec 3, 2025
• 3025 18th St newest permit Jun 1, 2026

Boulder Planning and Development Services updated its data Oct 6, 2026. We checked it Oct 6, 18:44 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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