# Building permits at 31 S Mason Ave, Chicago, IL One permit on record here. The newest, Aug 29, 2025: Fire restoration w/ interior alteration & code upgrades for existing 2 du. Within a quarter mile, the city has issued 4 more permits since May 1. ## At this address | Date | Type | Work | Cost | Permit | |---|---|---|---|---| | Aug 29, 2025 | Alteration or repair | Self-cert 2019 CBRC: fire restoration w/ interior alteration & code upgrades for existing 2 du, in 2-story w/basement building no change in dwelling unit count (occupancy group R-5; type iii-a construction) | $180,000 | [101067922](https://nearbypermits.com/chicago/permit/101067922/) | ## Within ¼ mi since May 1, 2026 4 permits in the circle. From our copy of the city's data (last 24 months). ### This block (250 to 1,000 ft), 1 permits | Date | Address | Distance | Type | Work | Cost | Permit | |---|---|---|---|---|---|---| | Oct 5, 2026 | [5831 W Madison St](https://nearbypermits.com/chicago/address/5831-w-madison-st/) | 590 ft NE | Alteration or repair | Self-cert 2019 CBRC: alteration to existing tenant space of 800sf at first floor keeping the occupancy same as group-b (business) for non structural interior renovation including demolition & construction of dry walls, ceilings, casework, plumbing, HVAC and electrical works. | $292,383 | [101084457](https://nearbypermits.com/chicago/permit/101084457/) | ### Farther (1,000 ft to ¼ mi), 3 permits | Date | Address | Distance | Type | Work | Cost | Permit | |---|---|---|---|---|---|---| | Sep 15, 2026 | [5822 W Washington Blvd](https://nearbypermits.com/chicago/address/5822-w-washington-blvd/) | 0.24 mi NE | Alteration or repair | Spr 2019 CBRC: remove existing 1-story enclosed wood porch and stairs at rear of building. Replace with new 1-story wood open deck and stairs. Existing and proposed use is R-5. No change to building footprint or volume | $7,000 | [101087505](https://nearbypermits.com/chicago/permit/101087505/) | | Jul 15, 2026 | [5901 W Washington Blvd](https://nearbypermits.com/chicago/address/5901-w-washington-blvd/) | 0.21 mi N | Elevator | Replacement of submersible pumping unit on one(1) 4000lb capacity, 5-floor, 80fpm, passenger elevator(east #1), pursuant to the scope of work submitted.(ev007338) | $25,000 | [101085988](https://nearbypermits.com/chicago/permit/101085988/) | | Jul 14, 2026 | [20 S Waller Ave](https://nearbypermits.com/chicago/address/20-s-waller-ave/) | 0.24 mi E | Alteration or repair | Spr 2019 CBC: rehab and partial remodel, all new MEP existing: type 3a, 2 1/2" - story masonry building with basement. 2-Units: B household living category, duplex 1st floor unit into basement. | $150,000 | [101082982](https://nearbypermits.com/chicago/permit/101082982/) | ## 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 S Mason Ave with permits, nearest house number first: - [32 S Mason Ave](https://nearbypermits.com/chicago/address/32-s-mason-ave/): newest permit Dec 5, 2024 - [10 S Mason Ave](https://nearbypermits.com/chicago/address/10-s-mason-ave/): newest permit Aug 3, 2016 - [1127 S Mason Ave](https://nearbypermits.com/chicago/address/1127-s-mason-ave/): newest permit Jan 25, 2024 - [1129 S Mason Ave](https://nearbypermits.com/chicago/address/1129-s-mason-ave/): newest permit Nov 7, 2024 - [5124 S Mason Ave](https://nearbypermits.com/chicago/address/5124-s-mason-ave/): newest permit Jun 12, 2025 - [5216 S Mason Ave](https://nearbypermits.com/chicago/address/5216-s-mason-ave/): newest permit Sep 26, 2025 - [5235 S Mason Ave](https://nearbypermits.com/chicago/address/5235-s-mason-ave/): newest permit Mar 16, 2026 - [5316 S Mason Ave](https://nearbypermits.com/chicago/address/5316-s-mason-ave/): newest permit Jun 24, 2026 - [5324 S Mason Ave](https://nearbypermits.com/chicago/address/5324-s-mason-ave/): newest permit Jul 21, 2025 - [5326 S Mason Ave](https://nearbypermits.com/chicago/address/5326-s-mason-ave/): newest permit Aug 13, 2025 --- Source: Chicago Department of Buildings permit data (https://data.cityofchicago.org/d/ydr8-5enu). Checked 2026-10-18 05:33 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 4 nearby: https://nearbypermits.com/chicago/address/31-s-mason-ave/