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SKYDB

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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 Calgary File 475-871-881

Calgary city

structure #442689663building

Energy Plaza

existing 18 floors 1980

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Location of Energy Plaza

Object dataJoin to edit

Floors18
Completion1980
Structural Formhigh-rise building
Main Usagecommercial office
Status existing
Architectural Stylepostmodern
Address311 6 Avenue SW
Smart Address311–321 6 Avenue SW
Smart Address321 6 Avenue SW
1st Level DistrictSouthwest Quadrant
2nd Level DistrictDowntown Commercial Core
CityCalgary
CountryCanada
Source: SKYDB | As of: 2026-09-24

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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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