# Building permits at 351 E 21st St, Chicago, IL

The biggest project within a quarter mile since May 1: a $15M alteration or repair at 2233 S Dr Martin L King Jr Dr, permitted Jul 29.

60 permits on record here. The newest, Apr 3, 2025: Fire alarm: new system. Within a quarter mile, the city has issued 29 more permits (21 projects) since May 1.

## At this address

| Date | Type | Work | Cost | Permit |
|---|---|---|---|---|
| Apr 3, 2025 | Fire systems | Fire alarm: new system. Associated building permit:101036937. Affects: 0 dwelling units; 1 non-residential units. High-rise building: yes. Voice communication: yes. Special locking: no. Monitoring type: supervising station. Specific location: third floor, west elec rm, southeast elec rm. | Not listed | [B200416778](https://nearbypermits.com/chicago/permit/B200416778/) |
| Feb 14, 2025 | Fire systems | Fire alarm: modification of existing system. Associated building permit:101036937. Affects: 0 dwelling units; 0 non-residential units. High-rise building: yes. Voice communication: yes. Special locking: no. Monitoring type: supervising station. Specific location: third floor, north data center. | Not listed | [B200412284](https://nearbypermits.com/chicago/permit/B200412284/) |
| Feb 14, 2025 | Fire systems | Fire alarm: modification of existing system. Associated building permit:101036937. Affects: 0 dwelling units; 0 non-residential units. High-rise building: yes. Voice communication: yes. Special locking: no. Monitoring type: supervising station. Specific location: third floor, south data center. | Not listed | [B200412281](https://nearbypermits.com/chicago/permit/B200412281/) |
| Apr 17, 2023 | Fire systems | Fire alarm permit modify an existing city f chicago approved high rise fire alarm/voice evacuation system for a tenant build out on the 1st floor adding 2 speaker strobes to a cold aisle containment area | $4,500 | [B101008857](https://nearbypermits.com/chicago/permit/B101008857/) |
| Jan 17, 2023 | Fire systems | Fire alarm permit modify existing city of chicago approved high rise system, add 1 relay for door unlocking for a security cage in suite 130 | $4,255 | [B100998850](https://nearbypermits.com/chicago/permit/B100998850/) |
| Apr 30, 2019 | Fire systems | Fire alarm - tenant build out on 9th fl (p). CK#646344;$750.00. | Not listed | [B100817058](https://nearbypermits.com/chicago/permit/B100817058/) |
| Nov 5, 2018 | Elevator | Provide and additional landing at the 5th floor to one (1) 7500lb.cap, 9-floor geared traction freight elevator #4. Currently elevator does not stop there. Pursuant to the scope of work submitted. | $15,900 | [100788677](https://nearbypermits.com/chicago/permit/100788677/) |
| Sep 9, 2015 | Alteration or repair | Remove/replace 88 windows on the north, south, east, west elevations. | $1,496,546 | [100613305](https://nearbypermits.com/chicago/permit/100613305/) |
| Dec 13, 2013 | Fire systems | Tenant buildout on 8th & 9th fls (p). CK#126757;$500.00. | Not listed | [B100510953](https://nearbypermits.com/chicago/permit/B100510953/) |
| Aug 9, 2013 | Fire systems | Tenant buildout on 2nd fl partial. CK#125821;$500.00. | Not listed | [B100497614](https://nearbypermits.com/chicago/permit/B100497614/) |
| Jul 1, 2013 | Alteration or repair | Remove and replace 82 windows on the north, south, east, west sides of southeast tower. Repair all drywall as millwork window sills as required for installation of windows. All work same as existing | $1,316,300 | [100492837](https://nearbypermits.com/chicago/permit/100492837/) |
| Apr 10, 2013 | Fire systems | Tenant buildout on 8th flr (p). CHK#124761;$500.00. | Not listed | [B100478437](https://nearbypermits.com/chicago/permit/B100478437/) |
| Nov 21, 2012 | Electrical | Access control additions for digital realty | $129,700 | [B100467268](https://nearbypermits.com/chicago/permit/B100467268/) |
| Oct 1, 2012 | Alteration or repair | Remove and replace 312 openings consisting of 858 windows and 36 interior doors and drywall/millwork (around windows only) at interior. Masonry repairs as required for window installation. All work same as existing. No structural work. No change to landmarked interior spaces or exterior windows at l | $6,728,625 | [100456678](https://nearbypermits.com/chicago/permit/100456678/) |
| Feb 23, 2012 | Electrical | Installation of one (5) new rooftop microwave dish. No structural work, antenna to be mounted on existing platform. Electric wiring only. | $7,500 | [B100428894](https://nearbypermits.com/chicago/permit/B100428894/) |
| Feb 23, 2012 | Electrical | Installation of new rooftop microwave dish. No structural work, antenna to be mounted on existing platform. Electric wiring only. | $7,500 | [B100428893](https://nearbypermits.com/chicago/permit/B100428893/) |
| Oct 18, 2011 | Other | Relocate seven 30 ton liebert chilled water air handling units within the qwest data center located on the first floor. | Not listed | [100415204](https://nearbypermits.com/chicago/permit/100415204/) |
| Aug 9, 2011 | Alteration or repair | Replace 625 windows in 188 openings to include masonry & drywall repair to accommodate window replacement- all work same size & location | $3,029,555 | [100405618](https://nearbypermits.com/chicago/permit/100405618/) |
| Jul 19, 2011 | Scaffold or sidewalk shed | Erect (3) hydro mobile mast climber scaffolds from 7-19-11 to 7-19-12 | Not listed | [100403220](https://nearbypermits.com/chicago/permit/100403220/) |
| Apr 19, 2011 | Fire systems | Adding speakers in the tenant area on 4th fl(p). CK#118703;$500.00. | Not listed | [B100384141](https://nearbypermits.com/chicago/permit/B100384141/) |
| Jan 24, 2011 | Alteration or repair | Mechanical upgrades to suite 240 per plan | $158,000 | [100376807](https://nearbypermits.com/chicago/permit/100376807/) |
| Nov 18, 2010 | Alteration or repair | Renovation of existing data center office space to build compartments #5 and #11 suite#600*conditional permit subject to audit and field inspection | $650,000 | [100368802](https://nearbypermits.com/chicago/permit/100368802/) |
| Jan 15, 2010 | Electrical | Install (2) 225amp feeders for (2) new 100kva pdu's in exisitng switchboards | $60,000 | [B100327031](https://nearbypermits.com/chicago/permit/B100327031/) |
| Nov 19, 2009 | Alteration or repair | Remodeling of previously constructed computer rooms within a data center to add electrical panels, revise lighting, mechanical, and sprinklers in 8th floor ( suite 880) as per plans | $800,000 | [100317297](https://nearbypermits.com/chicago/permit/100317297/) |
| Oct 30, 2009 | Electrical | Disconnect & remove existing ups equipment and install new owner furnished ups equipment | $15,000 | [B100317552](https://nearbypermits.com/chicago/permit/B100317552/) |
| Oct 27, 2009 | Electrical | Extend branch feeders from ups equipment to new branch panelboards. | $48,000 | [B100316228](https://nearbypermits.com/chicago/permit/B100316228/) |
| Oct 19, 2009 | Electrical | Install a 600 amp branch feeder to customer supplied equipment | $350,000 | [B100315236](https://nearbypermits.com/chicago/permit/B100315236/) |
| Oct 1, 2009 | Alteration or repair | Remodeling of previously constructed computer rooms to add electrical panels, revise lighting and sprinklers, add a door and construct a small reception area. | $1,600,000 | [100306635](https://nearbypermits.com/chicago/permit/100306635/) |
| Aug 14, 2009 | Alteration or repair | Renovation of existing data center space to build compartmetn #7. Conditional permit subject to field inspection. | $350,000 | [100301112](https://nearbypermits.com/chicago/permit/100301112/) |
| Jul 14, 2009 | Alteration or repair | Interior buildout to suite 870 - revision to d08212-03, 100257588. Addition of office partitions, doors, trim, MEP work, etc. Self cert. Conditional permit subject to field inspection. | $500,000 | [100298978](https://nearbypermits.com/chicago/permit/100298978/) |
| Jun 30, 2009 | Electrical | Install (10) 225a / 120-208v 3 phase 5 wire feeders from existing pdus 1a & 1b for (10) 36 FT. Rows of 225a 3 phase 5 wire busway. Install (108) circuit breaker plug in units on the (10) rows of busway for (54) server cabinets. Each circuit breaker plug in unit has a l6-30r. | $5,000 | [B100298711](https://nearbypermits.com/chicago/permit/B100298711/) |
| Apr 20, 2009 | Alteration or repair | Revision to permit 100267444 (d08218-03). Additional chw pumps in the basement. | $1,000,000 | [100286950](https://nearbypermits.com/chicago/permit/100286950/) |
| Apr 15, 2009 | Fire systems | Tenant addition on 1st fl(p). CK#111934;$500.00. | Not listed | [B100284131](https://nearbypermits.com/chicago/permit/B100284131/) |
| Mar 24, 2009 | Alteration or repair | Rooftop sound barrier wall | $1,300,000 | [100258477](https://nearbypermits.com/chicago/permit/100258477/) |
| Mar 6, 2009 | Alteration or repair | Revision to existing permit #100243274 to add one additional chiller and a water riser system to the existing chiller plant | $13,000 | [100273759](https://nearbypermits.com/chicago/permit/100273759/) |
| Mar 3, 2009 | Alteration or repair | Interior remodeling of a previously occupied 6th floor space to serve as data center as per plans | $750,000 | [100268975](https://nearbypermits.com/chicago/permit/100268975/) |
| Feb 10, 2009 | Alteration or repair | Revision to d08212-03, 100257588. Interior buildout to the basement. | $1,750,000 | [100276224](https://nearbypermits.com/chicago/permit/100276224/) |
| Feb 9, 2009 | Electrical | Install (2) two 800af - 400 at circuit breakers in existing swbd 5. Install (2) two 400a feeders to (2) two new 400a - 480v distribution panels. Install (8) 30a 3ph 4w circuits to rectifier modules. All work to be in suite 460 of a 14 story office building. | $2,000 | [B100276116](https://nearbypermits.com/chicago/permit/B100276116/) |
| Nov 24, 2008 | Alteration or repair | Renovation of existing 8th floor infrastructure to supoort data center space (gens/fuel tank parallel gear) (conditional permit issued less the day tanks - doe permit to be issued separately) | $6,000,000 | [100268904](https://nearbypermits.com/chicago/permit/100268904/) |
| Nov 18, 2008 | Alteration or repair | Buildout of existing 8th floor data center space. (Conditional approval subject to field inspection) | $19,664 | [100267444](https://nearbypermits.com/chicago/permit/100267444/) |
| Nov 10, 2008 | Alteration or repair | Addition of (3) back-up generators to 1st floor. Revision to permit # 100210616. (Day tanks not included - conditional approval based on doe application receipt for above ground tanks) | $2,500,000 | [100266599](https://nearbypermits.com/chicago/permit/100266599/) |
| Oct 30, 2008 | Alteration or repair | Rooftop sawtooth removal and shaft infil on 8th floor with structural peer review. | $500,000 | [100264848](https://nearbypermits.com/chicago/permit/100264848/) |
| Oct 6, 2008 | Alteration or repair | Renovation of existing data center tenant space to accommodate new server equipment. *Conditional permit subject to field inspection. | $114,000 | [100251562](https://nearbypermits.com/chicago/permit/100251562/) |
| Oct 3, 2008 | Electrical | Conduit only for the 1st floor | $430,000 | [B100258576](https://nearbypermits.com/chicago/permit/B100258576/) |
| Sep 26, 2008 | Alteration or repair | Expansion of existing chiller plant in support of existing data center equipment expansion in basement, on 9th fl., and rooftop. | $11,000,000 | [100243274](https://nearbypermits.com/chicago/permit/100243274/) |
| Apr 24, 2008 | Alteration or repair | Revision to permit 100200419 for removal of eye wash stations per plans. | Not listed | [100233690](https://nearbypermits.com/chicago/permit/100233690/) |
| Dec 11, 2007 | Other | Change of contractor name. - Permit no. 100191959 | Not listed | [B100214954](https://nearbypermits.com/chicago/permit/B100214954/) |
| Nov 30, 2007 | Alteration or repair | Infrastructure renovation in support of 4th floor data center with work in basement, 2nd, 4th, and 8th floors per plans. | $2,000,000 | [100210616](https://nearbypermits.com/chicago/permit/100210616/) |
| Nov 15, 2007 | Alteration or repair | Tenant buildout of existing 4th floor data center (suites 440, 450, 460) space per plans.condtional permit subject to field inspection. | $2,891,250 | [100209460](https://nearbypermits.com/chicago/permit/100209460/) |
| Nov 13, 2007 | Alteration or repair | Tenant buildout of existing 4th floor data center (suites 410,420, 430) space per plans.condtiional permit subject to field inspection. | $8,386,600 | [100200419](https://nearbypermits.com/chicago/permit/100200419/) |
| Sep 7, 2007 | Alteration or repair | Renovation of support spaces for 4th data center space per plans. Conditional permit subject to field inspection. | $8,386,600 | [100191959](https://nearbypermits.com/chicago/permit/100191959/) |
| Sep 5, 2007 | Alteration or repair | Renovation of the existing loading dock. *Conditional permit subject to field inspection. | $297,000 | [100190174](https://nearbypermits.com/chicago/permit/100190174/) |
| May 9, 2007 | Elevator | Install one vertical whelchair lift | $11,459 | [100176155](https://nearbypermits.com/chicago/permit/100176155/) |
| Feb 6, 2007 | Alteration or repair | Renovation of existing first floor data center (approximately 26690 sf) for c/d/e spaces including 1200 sf equipment room in basement as per plans. *Conditional permit subject to field inspection | $17,250,000 | [100159758](https://nearbypermits.com/chicago/permit/100159758/) |
| Nov 14, 2006 | Alteration or repair | Install infrastructure to support suite 600 data center, including rooftop chillers, first floor generators, and fuel storage tanks per plans. | $21,000,000 | [100147178](https://nearbypermits.com/chicago/permit/100147178/) |
| Oct 30, 2006 | Alteration or repair | Phase 3a renovation of existing data center space @ 1st floor - conditional permit pending field inspection - | $498,500 | [100142061](https://nearbypermits.com/chicago/permit/100142061/) |
| Sep 7, 2006 | Electrical | Job# 027-055/ install (2) 4000a service switches as per plan# 20866 | Not listed | [B100135519](https://nearbypermits.com/chicago/permit/B100135519/) |
| Aug 28, 2006 | Alteration or repair | Interior alterations of 2nd floor technology center tenant space (suite 200) including emergrncy generator, underground fuel storage tank & new electrical service per plans. -Conditional permit, subject to field verification. | $300,000 | [100124434](https://nearbypermits.com/chicago/permit/100124434/) |
| Aug 15, 2006 | Alteration or repair | Renovation of existing data center space for suite 600.conditional permit subject to field inspection. | $3,000,000 | [100129018](https://nearbypermits.com/chicago/permit/100129018/) |
| Aug 9, 2006 | Electrical | Electrical demolition of 2nd flr.area. | $10,000 | [B100130212](https://nearbypermits.com/chicago/permit/B100130212/) |

## Within ¼ mi since May 1, 2026

29 permits in the circle. From our copy of the city's data (last 24 months).

### This block (250 to 1,000 ft), 19 permits

| Date | Address | Distance | Type | Work | Cost | Permit |
|---|---|---|---|---|---|---|
| Sep 23, 2026 | [350 E Cermak Rd](https://nearbypermits.com/chicago/address/350-e-cermak-rd/) | 410 ft S | Mechanical (HVAC) | Hydronic piping extension/reconfiguration, repair/replacement affecting 1 systems : 2 chiller(smardt, ad120.3egxx.f2arma.a016ra.e10, roof). Electrical work under this permit = no. Locations: 0 residential unit(s), 1 non-residential unit(s), exterior work, roof of building. | $400,000 | [B200508912](https://nearbypermits.com/chicago/permit/B200508912/) |
| Sep 9, 2026 | [212 E Cullerton St](https://nearbypermits.com/chicago/address/212-e-cullerton-st/) | 970 ft NW | Elevator | Replacement of governor cable on one(1) 3500lb capacity, 13-floor, 200fpm, passenger elevator(#2), pursuant to the scope of work submitted.(163959) | Not listed | [101088252](https://nearbypermits.com/chicago/permit/101088252/) |
| Sep 8, 2026 | [301 E Cermak Rd](https://nearbypermits.com/chicago/address/301-e-cermak-rd/) | 740 ft SW | Electrical | Line voltage electrical work. Repair or alter devices on existing circuits. Receptacle outlets: 3. Lighting outlets: 3. Specific location: exhibit hall. | $3,000 | [B200510035](https://nearbypermits.com/chicago/permit/B200510035/) |
| Sep 8, 2026 | [301 E Cermak Rd](https://nearbypermits.com/chicago/address/301-e-cermak-rd/) | 740 ft SW | Electrical | Line voltage electrical work. Repair or alter devices on existing circuits. Receptacle outlets: 3. Lighting outlets: 3. Specific location: exhibit hall. | $3,000 | [B200510034](https://nearbypermits.com/chicago/permit/B200510034/) |
| Sep 8, 2026 | [301 E Cermak Rd](https://nearbypermits.com/chicago/address/301-e-cermak-rd/) | 740 ft SW | Electrical | Line voltage electrical work. Repair or alter devices on existing circuits. Receptacle outlets: 3. Lighting outlets: 3. Specific location: exhibit hall. | $3,000 | [B200509691](https://nearbypermits.com/chicago/permit/B200509691/) |
| Aug 20, 2026 | [301 E Cermak Rd](https://nearbypermits.com/chicago/address/301-e-cermak-rd/) | 740 ft SW | Electrical | Line voltage electrical work. Repair or alter devices on existing circuits. Receptacle outlets: 3. Lighting outlets: 3. Specific location: exhibit hall. | $3,000 | [B200507846](https://nearbypermits.com/chicago/permit/B200507846/) |
| Aug 20, 2026 | [301 E Cermak Rd](https://nearbypermits.com/chicago/address/301-e-cermak-rd/) | 740 ft SW | Electrical | Line voltage electrical work. Repair or alter devices on existing circuits. Receptacle outlets: 3. Lighting outlets: 3. Specific location: exhibit hall. | $3,000 | [B200507840](https://nearbypermits.com/chicago/permit/B200507840/) |
| Jul 23, 2026 | [301 E Cermak Rd](https://nearbypermits.com/chicago/address/301-e-cermak-rd/) | 740 ft SW | Electrical | Line voltage electrical work. Repair or alter devices on existing circuits. Receptacle outlets: 3. Lighting outlets: 3. Specific location: exhibit hall. | $3,000 | [B200479198](https://nearbypermits.com/chicago/permit/B200479198/) |
| Aug 5, 2026 | [350 E Cermak Rd](https://nearbypermits.com/chicago/address/350-e-cermak-rd/) | 410 ft S | Alteration or repair | Spr 2019 CBRC: tenant improvement to remodel electrical rooms and support spaces on the 6th floor suites s600a & s600b of an existing data center. Work to include updates to the mechanical, electrical, fire protection and other affected systems. Exterior work is limited to the removal and replacemen | $8,400,000 | [101081831](https://nearbypermits.com/chicago/permit/101081831/) |
| Jul 29, 2026 | [2233 S Dr Martin L King Jr Dr](https://nearbypermits.com/chicago/address/2233-s-dr-martin-l-king-jr-dr/) | 790 ft S | Alteration or repair | Dds 2019 CBC: interior renovation of north tower of existing hotel building. Renovation of 462 guestrooms, guestroom corridors, elevator lobbies. The interior renovations of the building's south tower has been permitted under 101072657. (Occupancy types R1 and B; type IA construction) consultant rev | $14,875,000 | [101083002](https://nearbypermits.com/chicago/permit/101083002/) |
| Jul 16, 2026 | [1901 S Calumet Ave](https://nearbypermits.com/chicago/address/1901-s-calumet-ave/) | 850 ft N | Electrical | Line voltage electrical work. Add 2 circuits to existing 200 amp service disconnecting means. Receptacle outlets: 1. Lighting outlets: 0. Electric vehicle supply equipment:2 spaces. Specific location: parking lot. | $1,155 | [B200477870](https://nearbypermits.com/chicago/permit/B200477870/) |
| Jul 1, 2026 | [301 E Cermak Rd](https://nearbypermits.com/chicago/address/301-e-cermak-rd/) | 740 ft SW | Electrical | Line voltage electrical work. Repair or alter devices on existing circuits. Receptacle outlets: 3. Lighting outlets: 3. Specific location: exhibit hall. | $3,000 | [B200476069](https://nearbypermits.com/chicago/permit/B200476069/) |
| Jul 1, 2026 | [301 E Cermak Rd](https://nearbypermits.com/chicago/address/301-e-cermak-rd/) | 740 ft SW | Electrical | Line voltage electrical work. Repair or alter devices on existing circuits. Receptacle outlets: 3. Lighting outlets: 3. Specific location: exhibit hall. | $3,000 | [B200476048](https://nearbypermits.com/chicago/permit/B200476048/) |
| Jun 30, 2026 | [350 E Cermak Rd](https://nearbypermits.com/chicago/address/350-e-cermak-rd/) | 410 ft S | Alteration or repair | Scope: nonstructural interior preparatory demolition of nonload bearing partitions and m.e.p. Systems with demo drawings and all other work to be performed on renovation permit no. 101081831.Locations: 0 residential unit(s), 1 non-residential unit(s), 6th 7th floor. | $8,400,000 | [B200468274](https://nearbypermits.com/chicago/permit/B200468274/) |
| Jun 9, 2026 | [2121 S Prairie Ave](https://nearbypermits.com/chicago/address/2121-s-prairie-ave/) | 550 ft SW | Fire systems | Fire alarm: modification of existing system. Associated building permit:101077958. Affects: 0 dwelling units; 1 non-residential units. High-rise building: yes. Voice communication: yes. Special locking: no. Monitoring type: supervising station. Specific location: 3rd floor meeting rooms. | Not listed | [B200470557](https://nearbypermits.com/chicago/permit/B200470557/) |
| May 21, 2026 | [2121 S Prairie Ave](https://nearbypermits.com/chicago/address/2121-s-prairie-ave/) | 550 ft SW | Electrical | For permit 101077958: replacement electrical contractor. New contractor(s) listed under "other applicants and contractors" on permit certificate. | Not listed | [B200471501](https://nearbypermits.com/chicago/permit/B200471501/) |
| May 19, 2026 | [350 E Cermak Rd](https://nearbypermits.com/chicago/address/350-e-cermak-rd/) | 410 ft S | Electrical | Electrical maintenance permit. Occupancy: business. Start date: 5/21/2026. End date: 11/17/2026. All work under this permit must be performed by employees of the listed electrical contractor. The electrical contractor must maintain complete written records of all work performed under this permit and | Not listed | [B200470845](https://nearbypermits.com/chicago/permit/B200470845/) |
| May 14, 2026 | [221 E Cullerton St](https://nearbypermits.com/chicago/address/221-e-cullerton-st/) | 860 ft NW | Mechanical (HVAC) | Repair/replacement affecting 2 systems : 3 rooftop packaged unit(york kj061n12beaca2a1) 2 other heating equipment(solution are,aw-i-4-250 condensers). Electrical work under this permit = no. Locations: 0 residential unit(s), 0 non-residential unit(s), exterior work, rooftop. | $429,880 | [B200470449](https://nearbypermits.com/chicago/permit/B200470449/) |
| May 8, 2026 | [2121 S Prairie Ave](https://nearbypermits.com/chicago/address/2121-s-prairie-ave/) | 550 ft SW | Alteration or repair | Spr 2019 CBRC: alteration to 3rd floor meeting rooms within hotel tower. Combination of existing meeting room (glessner) with adjacent prefunction room, and combination of two adjacent meeting rooms (pullman and clark). Associated MEP revisions. No structural scope. (Occupancy group a-3, B, r-1, s-2 | $1,600,000 | [101077958](https://nearbypermits.com/chicago/permit/101077958/) |

### Farther (1,000 ft to ¼ mi), 10 permits

| Date | Address | Distance | Type | Work | Cost | Permit |
|---|---|---|---|---|---|---|
| Oct 5, 2026 | [2138 S Indiana Ave](https://nearbypermits.com/chicago/address/2138-s-indiana-ave/) | 0.21 mi SW | Scaffold or sidewalk shed | Temporary scaffolding: qty: 1, max. Length: 24 FT., max. Height: 365 FT. Location: south, east and west elevations. Permit expiration date: 365 days from permit issued date this permit is not valid without corresponding cdot public way permit. | Not listed | [B200513833](https://nearbypermits.com/chicago/permit/B200513833/) |
| Aug 18, 2026 | [120 E Cullerton St](https://nearbypermits.com/chicago/address/120-e-cullerton-st/) | 0.24 mi NW | Alteration or repair | Spr: electrical work only. Replace service conductors and service box for the existing 3,000 ampre switchboard multi dwelling unit 5 story masonry building, as per plans. R2 Occupancy classification. | $400,000 | [101084561](https://nearbypermits.com/chicago/permit/101084561/) |
| Jul 17, 2026 | [2206 S Indiana Ave](https://nearbypermits.com/chicago/address/2206-s-indiana-ave/) | 0.22 mi SW | Electrical | Line voltage electrical work. New permanent 15 amp service disconnecting means with 3 circuits. Receptacle outlets: 16. Lighting outlets: 9. Specific location: inside of new permanent pergola. | $4,000 | [B200478545](https://nearbypermits.com/chicago/permit/B200478545/) |
| Jul 6, 2026 | [2301 S Dr Martin Luther King Jr Dr](https://nearbypermits.com/chicago/address/2301-s-dr-martin-luther-king-jr-dr/) | 0.21 mi S | Electrical | Line voltage electrical work. Add 999 circuits to existing 60 amp service disconnecting means. Add 3 circuits to existing 100 amp service disconnecting means. Receptacle outlets: 999. Lighting outlets: 70. Specific location: exhibit hall, concourse and meeting rooms. | $1,500 | [B200475582](https://nearbypermits.com/chicago/permit/B200475582/) |
| Jun 26, 2026 | [2301 S Dr Martin Luther King Jr Dr](https://nearbypermits.com/chicago/address/2301-s-dr-martin-luther-king-jr-dr/) | 0.21 mi S | Electrical | Line voltage electrical work. Add 780 circuits to existing 60 amp service disconnecting means. Receptacle outlets: 800. Lighting outlets: 0. Specific location: mccormick place west hall and meeting rooms. | $1,500 | [B200473816](https://nearbypermits.com/chicago/permit/B200473816/) |
| May 29, 2026 | [2301 S Dr Martin Luther King Jr Dr](https://nearbypermits.com/chicago/address/2301-s-dr-martin-luther-king-jr-dr/) | 0.21 mi S | Electrical | Line voltage electrical work. Add 999 circuits to existing 60 amp service disconnecting means. Add 150 circuits to existing 100 amp service disconnecting means. Receptacle outlets: 999. Lighting outlets: 200. Specific location: mccormick place south and north halls. | $2,250 | [B200471015](https://nearbypermits.com/chicago/permit/B200471015/) |
| May 28, 2026 | [120 E Cullerton St](https://nearbypermits.com/chicago/address/120-e-cullerton-st/) | 0.24 mi NW | Electrical | Line voltage electrical work. Repair or alter devices on existing circuits. Receptacle outlets: 1. Lighting outlets: 0. Specific location: bldg west side exterior. | $40,000 | [B200471326](https://nearbypermits.com/chicago/permit/B200471326/) |
| May 11, 2026 | [2301 S Dr Martin L King Jr Dr](https://nearbypermits.com/chicago/address/2301-s-dr-martin-l-king-jr-dr/) | 0.21 mi S | Alteration or repair | Dds 2019 CBRC: interior alteration permit to install new escalators to connect levels 2 and 3 in existing exhibition/convention building. Follows phase 1 permit 101078257 for preparatory floor slab demolition within the escalator lobby. (Occupancy group a-3; type i-b construction) consultant reviewe | $2,000,000 | [101079861](https://nearbypermits.com/chicago/permit/101079861/) |
| May 4, 2026 | [2300 S Dr Martin L King Jr Dr](https://nearbypermits.com/chicago/address/2300-s-dr-martin-l-king-jr-dr/) | 0.21 mi S | Elevator | Removal of four(4) escalators(cc1 thru cc4), pursuant to the scope of work submitted.(ev019364) | Not listed | [101082530](https://nearbypermits.com/chicago/permit/101082530/) |
| May 1, 2026 | [2301 S Dr Martin L King Jr Dr](https://nearbypermits.com/chicago/address/2301-s-dr-martin-l-king-jr-dr/) | 0.21 mi S | Elevator | Installation of (3) three escalators pursuant to plans submitted and subject to city of chicago dept. Of buildings elevator bureau inspection (ev014623). | $750,000 | [101082474](https://nearbypermits.com/chicago/permit/101082474/) |

## More on this street

Other addresses on E 21st St with permits, nearest house number first:

- [320 E 21st St](https://nearbypermits.com/chicago/address/320-e-21st-st/): newest permit Apr 15, 2025

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Source: Chicago Department of Buildings permit data (https://data.cityofchicago.org/d/ydr8-5enu). Checked 2026-10-06 16:48 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

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Map, all 60 permits at this address and 29 nearby: https://nearbypermits.com/chicago/address/351-e-21st-st/