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

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Tall buildings, tracked.

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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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Research & data

Research with SKYDB InsightsData ExportsAPI AccessCreditsInteractive building map

Consulting & advertising

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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 Denver File 805-933-436

Denver, CO city

structure #877319614building

Alexan 20th Street Station

existing 42.9 m 12 floors 2019

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Location of Alexan 20th Street Station
Height Rankings

Object dataJoin to edit

Architectural Height42.9 m
Floors12
Completion2019
Structural Formhigh-rise building
Main Usagerental housing
Status existing
Address2080 California Street
CityDenver
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.

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Construction calendar

80 construction-phase photos across 2017 to 2018.

JanFebMarAprMayJunJulAugSepOctNovDec
2017 57 19 20 18
2018 23 23
Photos per month:less more