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828 metres tall, Burj Khalifa is a mixed-use skyscraper in Dubai, United Arab Emirates. It ranks first among the world's tallest completed buildings by architectural height. [2]
| Architectural height | 828 m2,717 ft |
| Height to tip | 829.8 m2,722 ft |
| Highest occupied floor | Not confirmed |
| Observation deck | Not confirmed |
| Floors above ground | 163 |
| Floors below ground | 1 |
| Completed | 2010 |
The current Skyscraper Center lists the highest occupied floor at 585.4 metres, while the retrieved Wikidata statement lists 584.5 metres and the supplied prompt uses 585 metres. This field remains unpublished pending reconciliation. Observation decks and The Lounge are different visitor experiences and need separate dated measurements. See source ↗
Design, structure and construction.
Technical sources reviewed 9 September 2026.
Three wings that buttress one another.
SOM arranged three concrete wings around a six-sided core. Each wing braces the other two, while the central cell supplies torsional stiffness. The setback geometry aligns columns above with walls below, avoiding disruptive transfers as the floor plate reduces. Gravity and lateral resistance follow the same disciplined geometry.
Read the technical source ↗A reinforced-concrete mat, 3.7 metres thick, distributes the tower load to bored piles 1.5 metres in diameter and 43 metres long. The mat was cast in four pours totalling 12,500 cubic metres. Low-permeability concrete forms part of the foundation durability strategy.
Read the technical source ↗The Samsung C&T, Six Construct and Arabtec joint venture had to coordinate cranes, labour and material supply vertically. BESIX reports concrete pumping to 585 metres and cycles reaching two floors per week. Special mixes and predominantly night-time pours addressed temperatures exceeding 45°C.
Read the technical source ↗Successive setbacks change the shape the wind encounters, reducing coherent vortex formation. The envelope uses silver-coated glazing to limit solar gain. Mechanical equipment is distributed through double-height service floors; the design also collects air-conditioning condensate for reuse. The steel spire was assembled inside the building and hydraulically raised into position.
Read the technical source ↗Design architects, engineers and construction firms have different responsibilities. Credits identify the published role on this project.
Explore architects & builders ↗Height bars use the same scale. They do not represent building shape. Measurement source ↗
Record updated 2026-09-24. Sources can differ on height categories, floor counts and completion milestones. Read our methodology.
Directory record updated . Most recent recorded field check: . Updating the page does not re-verify every fact.
| Checked | Field | Evidence and decision |
|---|---|---|
| height architectural m | Architectural height agrees at 828 m. | |
| status | Completed building. | |
| completed | Uses 2010 occupancy completion rather than structural work in 2009. |
These notes predate this visible log. Their original change dates are not reconstructed.
Earlier record edits may not have a complete audit trail. Read the methodology and correction policy ↗
Burj Khalifa reaches 828 metres (2,717 feet) by architectural height, with a tip height of 829.8 metres.
It was completed in 2010.
Burj Khalifa stands in Dubai, United Arab Emirates.
It has 163 above-ground floors and 1 below ground.