# Building permits at 55 S Main St, Naperville, IL 25 permits on record here. The newest, Feb 20: We seek a permit to install FCO signage on the entry way of the storefront. Naperville publishes permits without map coordinates, so this address has no map and no quarter-mile list. ## At this address | Date | Type | Work | Cost | Permit | |---|---|---|---|---| | Feb 20, 2026 | Sign | We seek a permit to install FCO signage on the entry way of the storefront | Not listed | [SIGN-0017-2026](https://nearbypermits.com/naperville/permit/SIGN-0017-2026/) | | Feb 18, 2026 | Sign | We seek a permit to install Edge-lit Channel Letter sign on Storefront Elevation.SIGN A | Not listed | [SIGN-0002-2026](https://nearbypermits.com/naperville/permit/SIGN-0002-2026/) | | Feb 2, 2026 | Electrical | Low Voltage ethernet cabling | $6,000 | [MISC-0041-2026](https://nearbypermits.com/naperville/permit/MISC-0041-2026/) | | Jan 26, 2026 | Electrical | Provide labor and materials to install new 208V 3-phase power for new equipment including a 75 kVA transformer (480V–208Y/120V) a 208Y/120V panelboard with 200A main feeder conduits and wiring and four (4) new 3-phase branch circuits for equipment. | $10,000 | [MISC-0023-2026](https://nearbypermits.com/naperville/permit/MISC-0023-2026/) | | Jan 16, 2026 | Fire systems | Interior tenant improvement project in an existing shell space | $9,227 | [FIRE-0632-2025](https://nearbypermits.com/naperville/permit/FIRE-0632-2025/) | | Jan 15, 2026 | Sign | We seek a permit to install new blade sign | Not listed | [SIGN-0434-2025](https://nearbypermits.com/naperville/permit/SIGN-0434-2025/) | | Dec 19, 2025 | Fire systems | Relocation of 39 concealed and upright sprinklers to conform to the new ceiling layout. | $350,000 | [FIRE-0620-2025](https://nearbypermits.com/naperville/permit/FIRE-0620-2025/) | | Dec 19, 2025 | Fire systems | Fire Alarm renovations for Interior tenant improvement project in an existing shell space | $7,300 | [FIRE-0618-2025](https://nearbypermits.com/naperville/permit/FIRE-0618-2025/) | | Dec 18, 2025 | Sign | We seek a permit to install a blade sign near the entrance | Not listed | [SIGN-0433-2025](https://nearbypermits.com/naperville/permit/SIGN-0433-2025/) | | Dec 4, 2025 | Sign | We seek a Permit to install Halo Illuminated Letters above the Entrance | Not listed | [SIGN-0432-2025](https://nearbypermits.com/naperville/permit/SIGN-0432-2025/) | | Dec 1, 2025 | Alteration or repair | Interior tenant improvement project in an existing shell space | $339,498 | [COMM-0526-2025](https://nearbypermits.com/naperville/permit/COMM-0526-2025/) | | Nov 20, 2025 | Fire systems | Addition to an existing (silent knight ifp-75) fire alarm system in a 3-storymix-use building. | $8,000 | [FIRE-0552-2025](https://nearbypermits.com/naperville/permit/FIRE-0552-2025/) | | Nov 20, 2025 | Fire systems | Installation of a new (silent knight ifp-75 fire alarm system in a 1-story moderate-hazard storage building with 2 tenant spaces and separate fire panels. | $17,682 | [FIRE-0523-2025](https://nearbypermits.com/naperville/permit/FIRE-0523-2025/) | | Nov 6, 2025 | Alteration or repair | Upfit of existing space. New restroom new fitting rooms new flooring new ceiling new lights new sales floor fixtures. No exterior work. | $350,000 | [COMM-0541-2025](https://nearbypermits.com/naperville/permit/COMM-0541-2025/) | | Oct 16, 2025 | Fire systems | * Demo existing line piping and associated sprinkler heads back to original 1" openings. * Provide new piping from original 1" openings of existing line piping.* furnish and install new sprinklers per new interior modifications. | $650,000 | [FIRE-0505-2025](https://nearbypermits.com/naperville/permit/FIRE-0505-2025/) | | Sep 9, 2025 | Alteration or repair | New work includes separating a retail space into two retail spaces which includes separation of utilities to serve two spaces. The work also involves demolition of existing walls and ceiling; new storefront glazing and new door opening at south elevatio | $650,000 | [COMM-0379-2025](https://nearbypermits.com/naperville/permit/COMM-0379-2025/) | | Sep 4, 2025 | Alteration or repair | hut off gas supply to the building. Add a reducing tee to the 2" main gas line coming into the building. Above the drop ceiling on the North East corner of the dining room. Install 8' on 1" gas pipe to reach the exterior wall then add 90 fitting and ru | $10,082 | [COMM-0551-2025](https://nearbypermits.com/naperville/permit/COMM-0551-2025/) | | Apr 9, 2025 | Elevator | Replace valve with new i-2 valve | $9,000 | [ELEV-0013-2025](https://nearbypermits.com/naperville/permit/ELEV-0013-2025/) | | Apr 9, 2025 | Elevator | Replace valve with new i-2 valve | $9,000 | [ELEV-0012-2025](https://nearbypermits.com/naperville/permit/ELEV-0012-2025/) | | Apr 9, 2025 | Elevator | Replace valve with new i-2 valve | $9,000 | [ELEV-0011-2025](https://nearbypermits.com/naperville/permit/ELEV-0011-2025/) | | Nov 27, 2023 | Elevator | H004415 | Not listed | [ELEV-0183-2023](https://nearbypermits.com/naperville/permit/ELEV-0183-2023/) | | Nov 27, 2023 | Elevator | H004413 | Not listed | [ELEV-0182-2023](https://nearbypermits.com/naperville/permit/ELEV-0182-2023/) | | Nov 27, 2023 | Elevator | H004414 | Not listed | [ELEV-0181-2023](https://nearbypermits.com/naperville/permit/ELEV-0181-2023/) | | Nov 27, 2023 | Elevator | | Not listed | [ELEV-0179-2023](https://nearbypermits.com/naperville/permit/ELEV-0179-2023/) | | Nov 27, 2023 | Elevator | | Not listed | [ELEV-0178-2023](https://nearbypermits.com/naperville/permit/ELEV-0178-2023/) | ## Zoning requests nearby We don't list zoning cases for Naperville yet. Look them up on the city's Planning and Zoning Commission page: https://www.naperville.il.us/government/board-and-commissions/planning-and-zoning-commission/ ## More on this street Other addresses on S Main St with permits, nearest house number first: - [50 S Main St](https://nearbypermits.com/naperville/address/50-s-main-st/): newest permit Aug 25, 2026 - [119 S Main St](https://nearbypermits.com/naperville/address/119-s-main-st/): newest permit Apr 23, 2026 - [210 S Main St](https://nearbypermits.com/naperville/address/210-s-main-st/): newest permit Oct 29, 2025 - [214 S Main St](https://nearbypermits.com/naperville/address/214-s-main-st/): newest permit Sep 3, 2026 - [216 S Main St](https://nearbypermits.com/naperville/address/216-s-main-st/): newest permit Aug 26, 2025 - [217 S Main St](https://nearbypermits.com/naperville/address/217-s-main-st/): newest permit Jan 27, 2026 - [223 S Main St](https://nearbypermits.com/naperville/address/223-s-main-st/): newest permit Mar 12, 2025 - [227 S Main St](https://nearbypermits.com/naperville/address/227-s-main-st/): newest permit Aug 21, 2026 - [520 S Main St](https://nearbypermits.com/naperville/address/520-s-main-st/): newest permit Sep 23, 2026 - [524 S Main St](https://nearbypermits.com/naperville/address/524-s-main-st/): newest permit May 29, 2026 --- Source: City of Naperville permit data (https://www.arcgis.com/home/item.html?id=d13ad71731234cfa8793b75705c3dbe2). Checked 2026-10-12 09:56 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/ All 25 permits at this address: https://nearbypermits.com/naperville/address/55-s-main-st/