Nearby Permits
Map of 28 permits within a quarter mile of 351 E 21st StMechanical (HVAC), 350 E Cermak Rd, Sep 23, 2026Elevator, 212 E Cullerton St, Sep 9, 2026Electrical, 301 E Cermak Rd, Sep 8, 2026Electrical, 301 E Cermak Rd, Sep 8, 2026Electrical, 301 E Cermak Rd, Sep 8, 2026Electrical, 301 E Cermak Rd, Aug 20, 2026Electrical, 301 E Cermak Rd, Aug 20, 2026Alteration or repair, 120 E Cullerton St, Aug 18, 2026Alteration or repair, 350 E Cermak Rd, Aug 5, 2026Alteration or repair, 2233 S Dr Martin L King Jr Dr, Jul 29, 2026Electrical, 301 E Cermak Rd, Jul 23, 2026Electrical, 2206 S Indiana Ave, Jul 17, 2026Electrical, 1901 S Calumet Ave, Jul 16, 2026Electrical, 2301 S Dr Martin Luther King Jr Dr, Jul 6, 2026Electrical, 301 E Cermak Rd, Jul 1, 2026Electrical, 301 E Cermak Rd, Jul 1, 2026Alteration or repair, 350 E Cermak Rd, Jun 30, 2026Electrical, 2301 S Dr Martin Luther King Jr Dr, Jun 26, 2026Fire systems, 2121 S Prairie Ave, Jun 9, 2026Electrical, 2301 S Dr Martin Luther King Jr Dr, May 29, 2026Electrical, 120 E Cullerton St, May 28, 2026Electrical, 2121 S Prairie Ave, May 21, 2026Electrical, 350 E Cermak Rd, May 19, 2026Mechanical (HVAC), 221 E Cullerton St, May 14, 2026Alteration or repair, 2301 S Dr Martin L King Jr Dr, May 11, 2026Alteration or repair, 2121 S Prairie Ave, May 8, 2026Elevator, 2300 S Dr Martin L King Jr Dr, May 4, 2026Elevator, 2301 S Dr Martin L King Jr Dr, May 1, 2026660 ft Map preview
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351 E 21st St

Chicago, IL 60616

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 28 more permits (20 projects) since May 1.

MayJunJulAugSepOct
Within
Since
Here60 permits · 351 E 21st St
  1. Fire alarm: new system
    Fire systems
    Apr 3, 2025not listed
  2. Fire alarm: modification of existing system × 2 permits
    Fire systems
    Feb 14, 2025not listed
  3. **Fire alarm permit**modify an existing city f chicago approved high rise fire alarm/voice evacuation system…
    Fire systems
    Apr 17, 2023$4,500
  4. **Fire alarm permit**modify existing city of chicago approved high rise system
    Fire systems
    Jan 17, 2023$4,255
  5. Fire alarm - tenant build out on 9th fl (p)
    Fire systems
    Apr 30, 2019not listed
  6. Provide and additional landing at the 5th floor to one (1) 7500lb.cap
    Elevator
    Nov 5, 2018$15,900
  7. Remove/replace 88 windows on the north, south, east, west elevations
    Alteration or repair
    Sep 9, 2015$1,496,546
  8. Tenant buildout on 8th & 9th fls (p)
    Fire systems
    Dec 13, 2013not listed
  9. Tenant buildout on 2nd fl partial
    Fire systems
    Aug 9, 2013not listed
  10. Remove and replace 82 windows on the north
    Alteration or repair
    Jul 1, 2013$1,316,300
  11. Tenant buildout on 8th flr (p)
    Fire systems
    Apr 10, 2013not listed
  12. Access control additions for digital realty
    Electrical
    Nov 21, 2012$129,700
  13. Remove and replace 312 openings consisting of 858 windows and 36 interior doors and drywall/millwork (around…
    Alteration or repair
    Oct 1, 2012$6,728,625
  14. Installation of one (5) new rooftop microwave dish
    Electrical
    Feb 23, 2012$7,500
  15. Installation of new rooftop microwave dish
    Electrical
    Feb 23, 2012$7,500
  16. Relocate seven 30 ton liebert chilled water air handling units within the qwest data center located on the…
    Other
    Oct 18, 2011not listed
  17. Replace 625 windows in 188 openings to include masonry & drywall repair to accommodate window replacement…
    Alteration or repair
    Aug 9, 2011$3,029,555
  18. Erect (3) hydro mobile mast climber scaffolds from 7-19-11 to 7-19-12
    Scaffold or sidewalk shed
    Jul 19, 2011not listed
  19. Adding speakers in the tenant area on 4th fl(p)
    Fire systems
    Apr 19, 2011not listed
  20. Mechanical upgrades to suite 240
    Alteration or repair
    Jan 24, 2011$158,000
  21. Renovation of existing data center office space to build compartments #5 and #11 suite#600*conditional permit…
    Alteration or repair
    Nov 18, 2010$650,000
  22. Install (2) 225amp feeders for (2) new 100kva pdu's in exisitng switchboards
    Electrical
    Jan 15, 2010$60,000
  23. Remodeling of previously constructed computer rooms within a data center to add electrical panels
    Alteration or repair
    Nov 19, 2009$800,000
  24. Disconnect & remove existing ups equipment and install new owner furnished ups equipment
    Electrical
    Oct 30, 2009$15,000
  25. Extend branch feeders from ups equipment to new branch panelboards
    Electrical
    Oct 27, 2009$48,000
  26. Install a 600 amp branch feeder to customer supplied equipment
    Electrical
    Oct 19, 2009$350,000
  27. Remodeling of previously constructed computer rooms to add electrical panels
    Alteration or repair
    Oct 1, 2009$1,600,000
  28. Renovation of existing data center space to build compartmetn #7
    Alteration or repair
    Aug 14, 2009$350,000
  29. Interior buildout to suite 870 - revision to d08212-03, 100257588
    Alteration or repair
    Jul 14, 2009$500,000
  30. Install (10) 225a / 120-208v 3 phase 5 wire feeders from existing pdus 1a & 1b for (10) 36 FT. Rows of 225a 3…
    Electrical
    Jun 30, 2009$5,000
  31. Revision to permit 100267444 (d08218-03)
    Alteration or repair
    Apr 20, 2009$1,000,000
  32. Tenant addition on 1st fl(p)
    Fire systems
    Apr 15, 2009not listed
  33. Rooftop sound barrier wall
    Alteration or repair
    Mar 24, 2009$1,300,000
  34. Revision to existing permit #100243274 to add one additional chiller and a water riser system to the existing…
    Alteration or repair
    Mar 6, 2009$13,000
  35. Interior remodeling of a previously occupied 6th floor space to serve as data center
    Alteration or repair
    Mar 3, 2009$750,000
  36. Revision to d08212-03, 100257588
    Alteration or repair
    Feb 10, 2009$1,750,000
  37. Install (2) two 800af - 400 at circuit breakers in existing swbd 5
    Electrical
    Feb 9, 2009$2,000
  38. Renovation of existing 8th floor infrastructure to supoort data center space (gens/fuel tank parallel gear)…
    Alteration or repair
    Nov 24, 2008$6,000,000
  39. Buildout of existing 8th floor data center space
    Alteration or repair
    Nov 18, 2008$19,664
  40. Addition of (3) back-up generators to 1st floor
    Alteration or repair
    Nov 10, 2008$2,500,000
  41. Rooftop sawtooth removal and shaft infil on 8th floor with structural peer review
    Alteration or repair
    Oct 30, 2008$500,000
  42. Renovation of existing data center tenant space to accommodate new server equipment
    Alteration or repair
    Oct 6, 2008$114,000
  43. Conduit only for the 1st floor
    Electrical
    Oct 3, 2008$430,000
  44. Expansion of existing chiller plant in support of existing data center equipment expansion in basement
    Alteration or repair
    Sep 26, 2008$11,000,000
  45. Revision to permit 100200419 for removal of eye wash stations
    Alteration or repair
    Apr 24, 2008not listed
  46. Change of contractor name
    Contractor change
    Dec 11, 2007not listed
  47. Infrastructure renovation in support of 4th floor data center with work in basement
    Alteration or repair
    Nov 30, 2007$2,000,000
  48. Tenant buildout of existing 4th floor data center × 2 permits
    Alteration or repair
    Nov 13 to 15, 2007$11,277,850
  49. Renovation of support spaces for 4th data center space
    Alteration or repair
    Sep 7, 2007$8,386,600
  50. Renovation of the existing loading dock
    Alteration or repair
    Sep 5, 2007$297,000
  51. Install one vertical whelchair lift
    Elevator
    May 9, 2007$11,459
  52. Renovation of existing first floor data center (approximately 26690 sf) for c/d/e spaces including 1200 sf…
    Alteration or repair
    Feb 6, 2007$17,250,000
  53. Install infrastructure to support suite 600 data center
    Alteration or repair
    Nov 14, 2006$21,000,000
  54. Phase 3a renovation of existing data center space @ 1st floor - conditional permit pending field inspection
    Alteration or repair
    Oct 30, 2006$498,500
  55. Job# 027-055/ install (2) 4000a service switches
    Electrical
    Sep 7, 2006not listed
  56. Interior alterations of 2nd floor technology center tenant space (suite 200) including emergrncy generator
    Alteration or repair
    Aug 28, 2006$300,000
  57. Renovation of existing data center space for suite 600.conditional permit subject to field inspection
    Alteration or repair
    Aug 15, 2006$3,000,000
  58. Electrical demolition of 2nd flr.area
    Electrical
    Aug 9, 2006$10,000
Sort
This block250 to 1,000 ft · 19 permits in 13 projects
  1. Hydronic piping extension/reconfiguration
    350 E Cermak Rd · 410 ft S · Mechanical (HVAC)
    Sep 23$400,000
  2. Replacement of governor cable on one(1) 3500lb capacity
    212 E Cullerton St · 970 ft NW · Elevator
    Sep 9not listed
  3. Line voltage electrical work × 6 permits
    301 E Cermak Rd · 740 ft SW · Electrical
    Jul 23 to Sep 8$3,000
  4. Tenant improvement to remodel electrical rooms and support spaces on the 6th floor suites s600a & s600b of an…
    350 E Cermak Rd · 410 ft S · Alteration or repair
    Aug 5$8,400,000
  5. Dds 2019 CBC: interior renovation of north tower of existing hotel building
    2233 S Dr Martin L King Jr Dr · 790 ft S · Alteration or repair
    Jul 29$14,875,000
  6. Line voltage electrical work
    1901 S Calumet Ave · 850 ft N · Electrical
    Jul 16$1,155
  7. Line voltage electrical work × 2 permits
    301 E Cermak Rd · 740 ft SW · Electrical
    Jul 1$3,000
  8. Nonstructural interior preparatory demolition of nonload bearing partitions and M.E.P. systems with demo…
    350 E Cermak Rd · 410 ft S · Alteration or repair
    Jun 30$8,400,000
  9. Fire alarm: modification of existing system
    2121 S Prairie Ave · 550 ft SW · Fire systems
    Jun 9not listed
  10. Replacement electrical contractor
    2121 S Prairie Ave · 550 ft SW · Electrical
    May 21not listed
  11. Electrical maintenance permit
    350 E Cermak Rd · 410 ft S · Electrical
    May 19not listed
  12. Repair/replacement affecting 2 systems : 3 rooftop packaged unit(york kj061n12beaca2a1) 2 other heating…
    221 E Cullerton St · 860 ft NW · Mechanical (HVAC)
    May 14$429,880
  13. Alteration to 3rd floor meeting rooms within hotel tower
    2121 S Prairie Ave · 550 ft SW · Alteration or repair
    May 8$1,600,000
Within a quarter mile1,000 ft to ¼ mi · 9 permits in 7 projects
  1. Electrical work only
    120 E Cullerton St · 0.24 mi NW · Alteration or repair
    Aug 18$400,000
  2. Line voltage electrical work
    2206 S Indiana Ave · 0.22 mi SW · Electrical
    Jul 17$4,000
  3. Line voltage electrical work × 3 permits
    2301 S Dr Martin Luther King Jr Dr · 0.21 mi S · Electrical
    May 29 to Jul 6$3,750
  4. Line voltage electrical work
    120 E Cullerton St · 0.24 mi NW · Electrical
    May 28$40,000
  5. Dds 2019 CBRC: interior alteration permit to install new escalators to connect levels 2 and 3 in existing…
    2301 S Dr Martin L King Jr Dr · 0.21 mi S · Alteration or repair
    May 11$2,000,000
  6. Removal of four(4) escalators(cc1 thru cc4)
    2300 S Dr Martin L King Jr Dr · 0.21 mi S · Elevator
    May 4not listed
  7. Installation of (3) three escalators pursuant to plans submitted and subject to city of chicago dept. Of…
    2301 S Dr Martin L King Jr Dr · 0.21 mi S · Elevator
    May 1$750,000

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Chicago Department of Buildings updated its data Oct 3, 2026. We checked it Oct 5, 14:49 UTC. Official data.

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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