Chicago Historic Resources Survey (CHRS)

The Chicago Historic Resources Survey

Between 1983 and 1995 the City surveyed every building in Chicago put up before 1940 — on foot, street by street, across fifty ward areas. Surveyors rated each property on its age, its physical integrity and its possible significance, and recorded the result in colored pencil on outline maps. Preservation Chicago digitized the whole of it and published it on ChicagoLandmarkReports.org, where the book is searchable to the page and the hand-colored field maps are bound into the community area pages.

Why it still matters. A red- or orange-rated building that is not a landmark can still be given a 90-day hold on a demolition permit — the window in which a case for it can be made.

A rating is not a designation. The survey stops at 1940 and was finished thirty years ago; buildings have been altered, restored and demolished since. And absence is not a verdict — the survey missed a great many buildings, and one that does not appear has not been judged insignificant.

Read the survey

The survey by community area

Each of the City’s 77 community areas has its own page on Chicago Landmark Reports, carrying that area’s survey chapter, its hand-colored field maps, and any Chicago Landmarks within it.

The Chicago Historic Resources Survey was carried out by the Commission on Chicago Landmarks and is a public document of the City of Chicago. The copy digitized here is from the Preservation Chicago library; the text of every page has been read so that it can be searched.