SKYDB Building database

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

Rankings of tall buildings

Tall Building Markets

Tall buildings, tracked.

SKYDB is collecting verifiable information about buildings.

Panorama of Chicago File 251-493-889
company #800731455

Rittweger & Tokay

active structural engineering

Activity Rankings

Object dataJoin to edit

Status active
Rolestructural engineering
CityChicago, IL
CountryUnited States
Source: SKYDB | As of: 2026-10-30

Location

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Statistics

Buildings by decade

Click any bar to drill into that completion decade.

0 0% 2020s 0 0% 2010s 0 0% 2000s 0 0% 1990s 2 25% 1980s 5 62.5% 1970s 1 12.5% 1960s 0 0% 1950s 0 0% 1940s 0 0% 1930s 0 0% 1920s 0 0% 1910s 0 0% 1900s

By status

Completed: 7 (88%) Destroyed: 1 (13%)
  • Completed 7
  • Destroyed 1

By primary use

office: 6 (67%) residential: 2 (22%) lodging: 1 (11%)
  • office 6
  • residential 2
  • lodging 1

By floor count

1-9 floors: 2 (25%) 10-19 floors: 1 (13%) 20-39 floors: 4 (50%) 40-59 floors: 1 (13%)
  • 1-9 floors 2
  • 10-19 floors 1
  • 20-39 floors 4
  • 40-59 floors 1

By height

50-99 m: 3 (60%) 100-199 m: 2 (40%)
  • 50-99 m 3
  • 100-199 m 2

Source: SKYDB | As of: 2026-10-30

Rittweger & Tokay Buildings View all

  1. Ruan Center 1
    140 m36 fl1975
  2. One Rotary Center 5
  3. The Warwick 6