You're hitting our fair-use limits. Hitting our limits.
SKYDB services
Get export credits Wrongly blocked?
SKYDB

SKYDB Building database

Tall buildings worldwide, with heights, construction status and the companies involved.

Rankings of tall buildings

Tall Building Markets

  • Global building statistics
  • Biggest cities worldwide
  • Country market overviews
  • Construction activity
  • Annual completions
Speaker at a lectern in front of a skyscraper presentation

SKYDB Awards

The community is honoring the best new skyscrapers. A legacy since 1999.

View award winners

SKYDB Membership

Create a free account, choose Premium or apply to contribute as a volunteering Editor.

Choose your access

SKYDB Community

SKYDB Editors visiting a skyscraper construction site

Join for free

Become a volunteering Editor optionally or get Editor rights with Premium.

Compare memberships

SKYDB Products

Professional building research, data exports and API access, plus advertising offerings.

Research & data

Consulting & advertising

SKYDB Insights charts showing buildings by decade, status, use, floor count and height

SKYDB Insights

Professional research into buildings and participating companies.

View Insights plans

Tall buildings, tracked.

SKYDB is collecting verifiable information about buildings.

About SKYDB

Using SKYDB

Chongqing skyline beside the river

Who we are

SKYDB is the source for tall building information worldwide.

About SKYDB

Interactive building map

Explore all projects on an interactive map anywhere on earth.

Free map access

Upgrade your map experience

SKYDB map with building pins and a building record in Lower Manhattan

Join SKYDB

The map is for registered members. Create a free account to explore.

Create a free account
Panorama of Chicago File 251-493-889
Chicago, IL city
structure #520947159building

Optima Chicago Center

existing 134.9 m 42 floors 2014

Full map Join SKYDB
Location of Optima Chicago Center
Height Rankings

Object dataJoin to edit

Architectural Height134.9 m
Roof Height134.9 m
Building Mass Height134.9 m
Height Top Floor122.6 m
Floors42
Completion2014
Structural Formskyscraper
Main Usagerental housing
Status existing
Architectural Stylemodern
Address501 North St. Clair Street
Smart Address200 East Illinois Street
CityChicago, IL
CountryUnited States
Source: SKYDB | As of: 2026-11-11

Location

Full MapGoogle MapsBing Maps

Rating

The rating reflects architectural quality and visual impact as judged by SKYDB users, and feeds into how this building is ranked across the site.

Files Join to upload

  1. Photo 185-968-605
    Photo 185-968-605
    John W. Cahill
  2. Photo 630-120-444
    Photo 630-120-444
    John W. Cahill
  3. Photo 906-863-010
    Photo 906-863-010
    Marshall Gerometta

Construction calendar

8 construction-phase photos across 2012 to 2013.

JanFebMarAprMayJunJulAugSepOctNovDec
2012 7 2 2 2 1
2013 1 1
Photos per month:less more