Center for Urban Research and Learning

Loyola University Chicago

Here you will find all of CURL's research projects and publications. 

One and a Half Decades of Apartment Loss and Condominium Growth: Changes in Chicago's Residential Building Stock

April 2007


CURL researchers used data from the Cook County Assessor to document the decline in Chicago apartments and growth in condominium units from 1989 to 2004 in the following report.  While the total number of housing units in Chicago remained approximately constant at a little over one million, we found that at least 44,637 and perhaps as many as 97,894 apartment units were removed from Chicago’s housing stock during this period. Over the same period 102,408 condominium units have been added to the housing stock.  

We provide tables and maps that show the changes by in small apartments (less than six units), large apartments (7+ units) and condominiums by community area.  

The analysis that follows uses parcel level data collected for the purpose of assessing property taxes by the Cook County Tax Assessor in 1989-1990, 1995-1997, 2002 and 2004.  Our narrow purpose in this short report is to use these data to provide quantitative measures of the change in rental, single-family owner-occupied and residential condominium parcels by neighborhood in Chicago.  We leave it to future research, by ourselves or others, to explore the reasons for, and consequences of, the changes described in the report.

Final Report

Research Team

  • J. Davis, CURL
  • D. Merriman, CURL, School of Business Administration 

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