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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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

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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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SKYDB is collecting verifiable information about buildings.

Chongqing skyline beside the riverAbout SKYDB
Panorama of Chicago File 251-493-889
Chicago, IL city
structure #887274215building

640 North Wells Street

existing 79 m 23 floors 2017

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Location of 640 North Wells Street
Height Rankings

Object dataJoin to edit

Architectural Height79 m
Floors23
Completion2017
Structural Formhigh-rise building
Main Usagerental housing
Status existing
Architectural Stylemodern
Address640 North Wells Street
ZoneRiver North
1st Level DistrictDowntown
2nd Level DistrictNear North Side
CityChicago, IL
CountryUnited States
Source: SKYDB | As of: 2026-09-29

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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

2 construction-phase photos across 2016.

JanFebMarAprMayJunJulAugSepOctNovDec
2016 2 2
Photos per month:less more