55 S Main St

Naperville, IL 60540

At this address

25 permits on record. Newest issued Feb 20: We seek a permit to install FCO signage on the entry way of the…

Within ¼ mile

Naperville publishes permits without map coordinates, so this address has no map and no quarter-mile list.

1. We seek a permit to install FCO signage on the entry way of the storefront

   Sign
   Feb 20not listed
2. We seek a permit to install Edge-lit Channel Letter sign on Storefront Elevation.SIGN A

   Sign
   Feb 18not listed
3. Low Voltage ethernet cabling

   Electrical
   Feb 2$6,000
4. Provide labor and materials to install new 208V 3-phase power for new equipment including a 75 kVA…

   Electrical
   Jan 26$10,000
5. Interior tenant improvement project in an existing shell space

   Fire systems
   Jan 16$9,227
6. We seek a permit to install new blade sign

   Sign
   Jan 15not listed
7. Relocation of 39 concealed and upright sprinklers to conform to the new ceiling layout

   Fire systems
   Dec 19, 2025$350,000
8. Fire Alarm renovations for Interior tenant improvement project in an existing shell space

   Fire systems
   Dec 19, 2025$7,300
9. We seek a permit to install a blade sign near the entrance

   Sign
   Dec 18, 2025not listed
10. We seek a Permit to install Halo Illuminated Letters above the Entrance

    Sign
    Dec 4, 2025not listed
11. Interior tenant improvement project in an existing shell space

    Alteration or repair
    Dec 1, 2025$339,498
12. Addition to an existing (silent knight ifp-75) fire alarm system in a 3-storymix-use building

    Fire systems
    Nov 20, 2025$8,000
13. Installation of a new

    Fire systems
    Nov 20, 2025$17,682
14. Upfit of existing space

    Alteration or repair
    Nov 6, 2025$350,000
15. * Demo existing line piping and associated sprinkler heads back to original 1" openings

    Fire systems
    Oct 16, 2025$650,000
16. New work includes separating a retail space into two retail spaces which includes separation of utilities to…

    Alteration or repair
    Sep 9, 2025$650,000
17. Hut off gas supply to the building

    Alteration or repair
    Sep 4, 2025$10,082
18. Replace valve with new i-2 valve × 3 permits

    Elevator
    Apr 9, 2025$9,000
19. Elevator permit, no description from the city × 5 permits

    Elevator
    Nov 27, 2023not listed

We don't list zoning cases for Naperville yet. Look them up on the city's Planning and Zoning Commission page.

• 50 S Main St newest permit Aug 25, 2026
• 119 S Main St newest permit Apr 23, 2026
• 210 S Main St newest permit Oct 29, 2025
• 214 S Main St newest permit Sep 3, 2026
• 216 S Main St newest permit Aug 26, 2025
• 217 S Main St newest permit Jan 27, 2026
• 223 S Main St newest permit Mar 12, 2025
• 227 S Main St newest permit Aug 21, 2026
• 520 S Main St newest permit Sep 23, 2026
• 524 S Main St newest permit May 29, 2026

The newest permit in the city's data is from Sep 30, 2026, 9 days ago. Permits issued after that won't appear here until the city publishes them.

City of Naperville updated its data Oct 9, 2026. We checked it Oct 9, 21:51 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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