SKYDB

SKYDB Building database

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

Rankings of tall buildings

Tall Building Markets

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

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Tall buildings, tracked.

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SKYDB is the source for tall building information worldwide.

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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.

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

Research & data

Research with SKYDB InsightsData ExportsAPI AccessCreditsInteractive building map

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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

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 #280265399building

Galaxy 51 Apartments

existing 46 m 13 floors 1904

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Location of Galaxy 51 Apartments
Height Rankings

Object dataJoin to edit

Roof Height47.2 m
Architectural Height46 m
Main Roof Height46 m
Floors13
Completion1904
Structural Formhigh-rise building
Main Usagehotel, residential
Status existing
Address51 West 81st Street at Columbus Avenue, NE Corner
Smart Address51–57 West 81st Street
Smart Address441–449 Columbus Avenue
CityNew York City
CountryUnited States
Source: SKYDB | As of: 2026-09-21

Location

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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 107-005-171
    Photo 107-005-171
    Royce Douglas
  2. Photo 421-223-201
    Photo 421-223-201
    John W. Cahill
  3. Photo 806-766-837
    Photo 806-766-837
    John W. Cahill
  4. Photo 846-141-119
    Photo 846-141-119
    John W. Cahill