Proximus, Tower 1 (U)
13th tallest finished building in Brussels

Proximus, Tower 1 (U) is an office building in Brussels, with 32 floors, finished in 1994. It stands 102 m (335 ft) tall, which makes it the 13th tallest finished building in Brussels.
- Height
- 102 m · 335 ft
- Rank in Brussels
- 13th of 25 listed
- Floors
- 32
- Completed
- 1994
- Use
- Office
- City
- Brussels, Belgium
Next to it in the ranking
11th · World Trade Center, Tower 3105 m · 344 ft · 1983
12th · Proximus, Tower 2 (T)102 m · 335 ft · 1994
14th · World Trade Center, Tower 1102 m · 335 ft · 1972
15th · World Trade Center, Tower 2102 m · 335 ft · 1976
See all of Brussels'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 Brussels. Last checked 3 Nov 2026.