The slowest zoning change approved this year took 714 days

Published on May. 21, 2017 by Steven Vance


Most were approved in a little less than four months

Alongside the Chicago zoning changes map and notifications features that we launched three weeks ago, we have a treasure trove of new data to study.

Here are some nuggets for zoning changes approved by City Council in 2017:

  • 118 zoning changes have been passed by the City Council this year
  • The average time to get approved is 116 days (or nearly four months); this doesn’t include any time an applicant may have spent negotiating with an alder about their proposal’s particulars prior to submitting the zoning change ordinance
  • The longest time to get approval was 714 days; this was for ordinance 2015–2682 to approve amendments to the planned development that controls the land under the Chicago School for Agricultural Sciences, a Chicago Public School, to be able to add a horse riding arena
  • The shortest time to get approval was 35 days; 16 zoning changes were approved this quickly
  • The second slowest approval time was 609 days; this was for a zoning change request from a homeowner who wanted to demolish an existing house and build a new single-family house of a size appropriate for a standard Chicago lot (125x25) despite the lot being much smaller (90x24)

What else do you want to know about zoning changes in Chicago?


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