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
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  • Construction activity
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SKYDB Products

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

Research & data

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

SKYDB Insights

Professional research into buildings and participating companies.

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Tall buildings, tracked.

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Using SKYDB

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SKYDB is the source for tall building information worldwide.

About SKYDB

Interactive building map

Explore all projects on an interactive map anywhere on earth.

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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

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 #726006675building

255 4th Avenue

existing 12 floors 2010

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Location of 255 4th Avenue

Object dataJoin to edit

Floors12
Completion2010
Structural Formhigh-rise building
Main Usageresidential condominium
Status existing
Address255 4th Avenue
Smart Address255–257 4th Avenue
CityNew York City
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.

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Construction calendar

1 construction-phase photo across 2008.

JanFebMarAprMayJunJulAugSepOctNovDec
2008 1 1
Photos per month:less more