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

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.

Speaker at a lectern in front of a skyscraper presentationView award winners

Research & data

Research with SKYDB InsightsData ExportsAPI AccessCreditsInteractive building map

Consulting & advertising

ConsultingSKYDB BrandingBanner advertisingContact SKYDBInsights questions & answers

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

Who we areTeam and editorsSKYDB AwardsNewsletterContact

Using SKYDB

Coverage and focusSources and qualityHow to add contentDefinitions and standardsKnowledge base

SKYDB is collecting verifiable information about buildings.

Chongqing skyline beside the riverAbout SKYDB
Panorama of New York City File 684-229-041
New York City, NY city
structure #660037628building

The Union Building

existing 34 m 11 floors 1893

Full map Join SKYDB
Location of The Union Building
Height Rankings

Object dataJoin to edit

Main Roof Height45.7 m
Architectural Height34 m
Floors11
Completion1893
Last Renovation1996
Structural Formhigh-rise building
Main Usageresidential
Status existing
Address33 Union Square West
Smart Address33 Union Square West
Smart Address33 Union Square
ZoneUnion Square
1st Level DistrictManhattan
2nd Level DistrictFlatiron
CityNew York City, NY
CountryUnited States
Source: SKYDB | As of: 2026-09-29

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 187-734-456
    Photo 187-734-456
    John W. Cahill
  2. Photo 400-965-539
    Photo 400-965-539
    John W. Cahill
  3. Photo 053-684-667
    Photo 053-684-667
    David Guija
  4. Photo 192-658-310
    Photo 192-658-310
    John W. Cahill
  5. Photo 108-260-295
    Photo 108-260-295
    John W. Cahill
  6. Photo 299-049-823
    Photo 299-049-823
    John W. Cahill
  7. Photo 800-270-751
    Photo 800-270-751
    Royce Douglas
  8. Photo 539-864-253
    Photo 539-864-253
    Royce Douglas
  9. Photo 095-017-417
    Photo 095-017-417
    John W. Cahill
  10. Photo 778-611-856
    Photo 778-611-856
    Detroit Publishing Co.