| 11 Diagonal Street | |
|---|---|
 A view of the building from street level | |
 Interactive map of 11 Diagonal Street | |
| General information | |
| Status | Completed |
| Type | Multi use,Office |
| Location | Johannesburg,South Africa |
| Coordinates | 26°12′15″S28°2′9″E / 26.20417°S 28.03583°E /-26.20417; 28.03583 |
| Construction started | 1981 |
| Completed | 1983 |
| Opening | 1984 |
| Cost | R65 million |
| Owner | Rebosis Property Fund[1] |
| Height | |
| Antenna spire | 80 m (260 ft) |
| Roof | 75 m (246 ft) |
| Top floor | 75 m (246 ft) |
| Technical details | |
| Floor count | 20 |
| Floor area | 20,000 m2 (220,000 sq ft) |
| Lifts/elevators | 6 |
| Design and construction | |
| Architect | Helmut Jahn |
11 Diagonal Street (also known as the diamond building[2]) is an iconicoffice tower in downtownJohannesburg,South Africa, that was built by Anglo American Property Services.[3] The 22 floor building is the 15th tallest in the city[4] and it was conceptualized in 1981 and excavations began in December that year. Construction ended in 1983 and the building was tenanted in 1984.[5] The building is designed to look like adiamond as it reflects different views of theCentral Business District from each angle of the building.[6] Apart from its unique exterior, the structure was built with concrete instead of steel, demonstrating that concrete could be used instead of steel in both speed and cost.[7]
The building's architect wasHelmut Jahn[8] and is featured on theLevel 42 album coverThe Very Best of Level 42.
The building was used by the department of Development Planning & Local Government.[9] It is currently occupied by The Gauteng Department of Infrastructure Development.[10]
Authority control databases: Geographic |
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