Union Plaza

18th tallest finished building in Oklahoma City

Union Plaza is an office building in Oklahoma City, with 18 floors, finished in 1982. It stands 76.8 m (252 ft) tall, which makes it the 18th tallest finished building in Oklahoma City.

Height

76.8 m · 252 ft

Rank in Oklahoma City

18th of 25 listed

Floors

18

Completed

1982

Use

Office

City

Oklahoma City, USA

Next to it in the ranking

• 16th · Continental Oil Center79.9 m · 262 ft · 1981
• 17th · Oklahoma State Capitol77.7 m · 255 ft · 1917
• 19th · Dowell Center73.8 m · 242 ft · 1927
• 20th · Regency Tower72.5 m · 238 ft · 1966

See all of Oklahoma City's tallest buildings

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Heights, floors and years for finished buildings follow published figures, cross-checked with Wikipedia's list of tallest buildings in Oklahoma City. Last checked 3 Nov 2026.