# Building permits at 4100 N Mason Ave, Chicago, IL One permit on record here. The newest, Mar 24, 2015: Garage. Within a quarter mile, the city has issued 14 more permits since May 1. ## At this address | Date | Type | Work | Cost | Permit | |---|---|---|---|---| | Mar 24, 2015 | Fence, wall or deck | Garage | $20,000 | [100586905](https://nearbypermits.com/chicago/permit/100586905/) | ## Within ¼ mi since May 1, 2026 14 permits in the circle. From our copy of the city's data (last 24 months). ### Next door (under 250 ft), 1 permits | Date | Address | Distance | Type | Work | Cost | Permit | |---|---|---|---|---|---|---| | Aug 18, 2026 | [4055 N Mason Ave](https://nearbypermits.com/chicago/address/4055-n-mason-ave/) | 130 ft SE | Fence, wall or deck | Full rebuild (same as existing) for wood porch (open) (quantity: 1, location: rear of building). | $34,000 | [B200477230](https://nearbypermits.com/chicago/permit/B200477230/) | ### This block (250 to 1,000 ft), 4 permits | Date | Address | Distance | Type | Work | Cost | Permit | |---|---|---|---|---|---|---| | Jul 13, 2026 | [4159 N Mason Ave](https://nearbypermits.com/chicago/address/4159-n-mason-ave/) | 600 ft N | Solar | Install solar panels on roof of principal building. Roof type: steep (>5:12). Inverter output: 8.7 kw. Array output: 10.12 kw. Location: roofs. Icc distributed generation installer cert. #14-0400. | $28,040 | [B200476682](https://nearbypermits.com/chicago/permit/B200476682/) | | Jun 7, 2026 | [4142 N Monitor Ave](https://nearbypermits.com/chicago/address/4142-n-monitor-ave/) | 790 ft NE | Electrical | Line voltage electrical work. New permanent 200 amp service disconnecting means with 40 circuits. Receptacle outlets: 1. Lighting outlets: 0. Specific location: outside and basemant. | $4,000 | [B200473657](https://nearbypermits.com/chicago/permit/B200473657/) | | May 14, 2026 | [5900 W Irving Park Rd](https://nearbypermits.com/chicago/address/5900-w-irving-park-rd/) | 750 ft SE | Alteration or repair | Self-cert 2019 CBRC; renovate the existing 2-story, type IIA bank building into the neighborhood loans corporate offices a group B, business use. The work is to include;- new open office layout with employee lounge & ADA toilet rooms, along with new finishes.- rebalance HVAC system, along with elect | $250,000 | [101078302](https://nearbypermits.com/chicago/permit/101078302/) | | May 1, 2026 | [6008 W Irving Park Rd](https://nearbypermits.com/chicago/address/6008-w-irving-park-rd/) | 770 ft SW | Alteration or repair | 2019 CBRC Structural peer review: replacement of (2) exterior west steel stairs with (1) new 2-story steel stair and replacement of (2) exterior east steel stairs with (1) new 1-story steel stair. Occupancy group a-1, R-2, m, B. Type 2b and 3b construction. | $14,000 | [101080646](https://nearbypermits.com/chicago/permit/101080646/) | ### Farther (1,000 ft to ¼ mi), 9 permits | Date | Address | Distance | Type | Work | Cost | Permit | |---|---|---|---|---|---|---| | Sep 29, 2026 | [4033 N Moody Ave](https://nearbypermits.com/chicago/address/4033-n-moody-ave/) | 0.25 mi W | Solar | Install solar panels on roof of principal building. Roof type: steep (>5:12). Inverter output: 10 kw. Array output: 9.45 kw. Includes 13.5 kwh energy storage system. Location: roof planes of main house. Icc distributed generation installer cert. #18-0817. | $22,955 | [B200513107](https://nearbypermits.com/chicago/permit/B200513107/) | | Sep 28, 2026 | [4033 N Moody Ave](https://nearbypermits.com/chicago/address/4033-n-moody-ave/) | 0.25 mi W | Electrical | Line voltage electrical work. New permanent 100 amp service disconnecting means with 1 circuits. Receptacle outlets: 1. Lighting outlets: 0. Specific location: main panel, exterior. | $4,000 | [B200513111](https://nearbypermits.com/chicago/permit/B200513111/) | | Aug 7, 2026 | [4025 N Meade Ave](https://nearbypermits.com/chicago/address/4025-n-meade-ave/) | 0.19 mi SW | Solar | Install solar panels on roof of principal building. Roof type: steep (>5:12). Inverter output: 10 kw. Array output: 9 kw. Includes 13.5 kwh energy storage system. Location: roof planes of homes. Icc distributed generation installer cert. #18-0817. | $22,100 | [B200481540](https://nearbypermits.com/chicago/permit/B200481540/) | | Aug 6, 2026 | [4025 N Menard Ave](https://nearbypermits.com/chicago/address/4025-n-menard-ave/) | 0.22 mi E | Plumbing | Repair or in-kind replacement of 3 plumbing fixtures as described in permit application. Includes repair or replacment of plumbing piping. Locations: 1 residential unit(s), 0 non-residential unit(s), exterior work, basement. | $11,862 | [B200481229](https://nearbypermits.com/chicago/permit/B200481229/) | | Aug 6, 2026 | [6018 W Dakin St](https://nearbypermits.com/chicago/address/6018-w-dakin-st/) | 0.21 mi SW | Plumbing | Repair or in-kind replacement of 0 plumbing fixtures as described in permit application. Repair or in-kind replacement of hot water heater(s). Locations: 1 residential unit(s), 1 non-residential unit(s), 1 interior common areas, basement. | $3,581 | [B200478657](https://nearbypermits.com/chicago/permit/B200478657/) | | Jun 11, 2026 | [5830 W Dakin St](https://nearbypermits.com/chicago/address/5830-w-dakin-st/) | 0.23 mi SE | Electrical | Line voltage electrical work. New permanent 100 amp service disconnecting means with 1 circuits. Receptacle outlets: 1. Lighting outlets: 0. Specific location: outside. | $8,053 | [B200474290](https://nearbypermits.com/chicago/permit/B200474290/) | | Jun 5, 2026 | [4025 N Menard Ave](https://nearbypermits.com/chicago/address/4025-n-menard-ave/) | 0.22 mi E | Electrical | Line voltage electrical work. New permanent 200 amp service disconnecting means with 30 circuits. Receptacle outlets: 2. Lighting outlets: 1. Specific location: basement. | $12,000 | [B200473235](https://nearbypermits.com/chicago/permit/B200473235/) | | Jun 4, 2026 | [4230 N Monitor Ave](https://nearbypermits.com/chicago/address/4230-n-monitor-ave/) | 0.22 mi NE | Fence, wall or deck | Purpose: new/replacement installation. Vinyl/pvc fence - 6'-0' ' (height) x 139'-0' ' (length). Location: rear and sides. | $6,300 | [B200473410](https://nearbypermits.com/chicago/permit/B200473410/) | | Jun 3, 2026 | [4018 N Menard Ave](https://nearbypermits.com/chicago/address/4018-n-menard-ave/) | 0.21 mi SE | Alteration or repair | Scope: nonstructural interior alteration to remove unpermitted unit features within basement of a SFR, remove partitions, appliances plumbing fixtures and associated piping and gas line, restore to open basement within SFR. Locations: 1 residential unit(s), 0 non-residential unit(s), basement. | $700 | [B200468554](https://nearbypermits.com/chicago/permit/B200468554/) | ## Zoning requests nearby We don't list zoning cases for Chicago yet. Look them up on the city's Zoning Board of Appeals page: https://www.chicago.gov/city/en/depts/dcd/zoning-board-of-appeals.html ## More on this street Other addresses on N Mason Ave with permits, nearest house number first: - [4055 N Mason Ave](https://nearbypermits.com/chicago/address/4055-n-mason-ave/): newest permit Aug 18, 2026 - [4152 N Mason Ave](https://nearbypermits.com/chicago/address/4152-n-mason-ave/): newest permit Jan 22, 2026 - [4159 N Mason Ave](https://nearbypermits.com/chicago/address/4159-n-mason-ave/): newest permit Jul 13, 2026 - [4039 N Mason Ave](https://nearbypermits.com/chicago/address/4039-n-mason-ave/): newest permit Sep 17, 2025 - [4030 N Mason Ave](https://nearbypermits.com/chicago/address/4030-n-mason-ave/): newest permit Aug 19, 2025 - [4418 N Mason Ave](https://nearbypermits.com/chicago/address/4418-n-mason-ave/): newest permit Sep 1, 2026 - [4427 N Mason Ave](https://nearbypermits.com/chicago/address/4427-n-mason-ave/): newest permit Sep 29, 2026 - [4540 N Mason Ave](https://nearbypermits.com/chicago/address/4540-n-mason-ave/): newest permit Apr 10, 2025 - [4852 N Mason Ave](https://nearbypermits.com/chicago/address/4852-n-mason-ave/): newest permit Sep 30, 2025 - [4915 N Mason Ave](https://nearbypermits.com/chicago/address/4915-n-mason-ave/): newest permit Mar 17, 2026 --- Source: Chicago Department of Buildings permit data (https://data.cityofchicago.org/d/ydr8-5enu). Checked 2026-10-10 12:51 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/ This site provides applications using data that has been modified for use from its original source, www.cityofchicago.org, the official website of the City of Chicago. The City of Chicago makes no claims as to the content, accuracy, timeliness, or completeness of any of the data provided at this site. The data provided at this site is subject to change at any time. It is understood that the data provided at this site is being used at one’s own risk. Map, the one permit at this address and 14 nearby: https://nearbypermits.com/chicago/address/4100-n-mason-ave/