SKYDB

SKYDB Building database

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

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Rankings of tall buildings

World’s tallest skyscrapersTallest under constructionTallest planned buildingsBiggest citiesBiggest countries

Tall Building Markets

Global building statisticsBiggest cities worldwideCountry market overviewsConstruction activityAnnual completions

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

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

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

About SKYDB

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Using SKYDB

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Chongqing skyline beside the riverAbout SKYDB

Panorama of Madison File 589-661-755

Madison, WI city

structure #240393232building

30 on the Square Building

existing 10 floors 1965

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Location of 30 on the Square Building

Object dataJoin to edit

Floors10
Completion1965
Structural Formhigh-rise building
Main Usagecommercial office
Status existing
Architectural Stylemodern
Address30 West Mifflin Street
Smart Address30 West Mifflin Street
Smart Address101 North Carroll Street
CityMadison
CountryUnited States
Source: SKYDB | As of: 2026-09-21

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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 939-203-356
    Photo 939-203-356
    Chris Patriarca
  2. Photo 691-461-830
    Photo 691-461-830
    Chris Patriarca
  3. Photo 870-914-795
    Photo 870-914-795
    Chris Patriarca
  4. Photo 974-717-789
    Photo 974-717-789
    Chris Patriarca
  5. Photo 382-980-328
    Photo 382-980-328
    Ryan Hildebrand
  6. Photo 194-184-328
    Photo 194-184-328
    Ryan Hildebrand
  7. Photo 810-684-219
    Photo 810-684-219
    Chris Patriarca