Research Record
Updated 2026
500 North Michigan Avenue, Chicago
The 24-story tower will keep ground-floor retail while vacant offices become housing and a new rooftop level changes the building's original profile.
Public Research
Designated as a Chicago district on July 29, 2009. Giles-Calumet District gives researchers a workable district-scale frame for street layout and parcel rhythm and contributing buildings and shared fabric.
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Quick Take
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Why It Matters
Giles-Calumet District protects a frame large enough for street layout and parcel rhythm, contributing buildings and shared fabric, and district-scale preservation decisions to be studied together.
That gives researchers a usable boundary before they begin testing the history against the ground.
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Research Narrative
Giles-Calumet District enters the public district record as Chicago landmark district number 20. The record anchors the district on July 29, 2009 and pairs that with the extent note buildings on the 3700- and 3800-blocks of S. Giles Ave., the 3800-block of S. Calumet Ave., and the 300-block of E. 38th St., 1885-1923, various architects. Giles-Calumet District stays useful for street layout and parcel rhythm, contributing buildings and shared fabric, and district-scale preservation decisions because it does not flatten into one landmark name.
Giles-Calumet District usually begins to open up in the field through boundary edges, corner conditions, and setbacks, then through the cadence between contributing buildings and later infill, demolition, or alteration. Those relationships are what make how a district holds together as a coordinated piece of city fabric rather than as isolated addresses legible on the ground.
Giles-Calumet District gains a fuller district record through designation reports and atlases, historic photographs and Sanborn maps, and permit records and planning coverage. That source trail is what turns the district from a map outline into a readable history of buildings, streets, and later change.
Giles-Calumet District does not need to be complete to be useful; it only needs to keep later research attached to the district itself.
Public Actions
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Designation
City of Chicago designated Giles-Calumet District as landmark district no. 20 on July 29, 2009.
Inventory
Giles-Calumet District continues to appear in Chicago's public landmark inventory and mapped district boundary datasets.
Sources
dataset
Use for district names and designation dates in the city data portal.
dataset
Use for district geometry and boundary-level map work.
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