11 Diagonal Street
| 11 Diagonal Street | |
|---|---|
 A view of the building from street level | |
 Interactive map of the 11 Diagonal Street area | |
General information | |
| Status | Completed |
| Type | Multi use, Office |
| Location | Johannesburg, South Africa |
| Coordinates | 26°12′15″S 28°2′9″E / 26.20417°S 28.03583°E |
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 iconic office tower in downtown Johannesburg, South Africa, that was built by Anglo American Property Services.[3] The 22 floor building is the 15th tallest in the city.[4]
The building's architect was Helmut Jahn.[5] It was conceptualized in 1981 and excavations began in December that year. Construction ended in 1983 and the building was tenanted in 1984.[6] The building is designed to look like a diamond as it reflects different views of the Central Business District from each angle of the building.[7] 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.[6]
The building is shown on the album cover for The Very Best of Level 42.
Current use
[edit]The building was used by the department of Development Planning & Local Government.[8] It is currently occupied by The Gauteng Department of Infrastructure Development.[9]
References
[edit]- ↑ "One moment, please..." www.rebosis.co.za.[dead link]
- ↑ "The Diamond Building – Johannesburg, South Africa". AEWORLDMAP.COM (3,300+ posts). 8 September 2015. Retrieved 6 April 2025.
- ↑ 11 Diagonal Street (1983) Published by Anglo American Property Services (Pty), Ltd., Johannesburg
- ↑ "The Diamond Building – Johannesburg, South Africa". AEWORLDMAP.COM (3,300+ posts). 8 September 2015. Retrieved 19 February 2025.
- ↑ "Jahn". Jahn. Retrieved 19 February 2025.
- 1 2 "Eleven diagonal street concrete won the day". Civil Engineering = Siviele Ingenieurswese. 1983 (1): 11–13. January 1983. hdl:10520/AJA10212019_16842.
- ↑ "11 Diagonal Street, Johannesburg, South Africa". Emporis. Archived from the original on 8 February 2007.
- ↑ "Diagonal Street, with Neil Fraser". joburg.org.za. Archived from the original on 26 October 2014. Retrieved 26 October 2014.
- ↑ Lebohang. "11 Diagonal Street". Rebosis. Archived from the original on 19 May 2024. Retrieved 19 February 2025.
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