In 2026, Burj Khalifa (Dubai), Merdeka 118 (Kuala Lumpur), and Jeddah Tower (Jeddah) stand out as the three most symbolic “mega‑tall” skyscrapers, combining extreme height with advanced structural engineering, building systems, and enormous price tags. Burj Khalifa remains the tallest completed tower at 828 meters, Merdeka 118 follows at about 679 meters, and Jeddah Tower is under construction with a planned height around 1,000+ meters, positioned to surpass both once finished.
Below is an American‑English overview of their heights, costs, technology, and real impact—with both positive and critical perspectives.
Basic Facts: Height, Status, and Role in 2026
Burj Khalifa – Dubai, UAE
Height: 828 m, 163 floors.
Status in 2026: Tallest completed skyscraper in the world, in service since 2010.
Role: Mixed‑use (residential, hotel, offices, observatories) and a global tourism icon.
Merdeka 118 (PNB 118) – Kuala Lumpur, Malaysia
Height: about 678.9–679.9 m, 118 floors.
Status in 2026: Completed in 2023, recognized as the second‑tallest building in the world and tallest in Southeast Asia.
Role: Large mixed development including offices, hospitality, retail, and public spaces.
Jeddah Tower – Jeddah, Saudi Arabia
Planned height: around 1,000+ m (often cited near 1,000–1,008 m) with roughly 157–167 floors, depending on final design.
Status in 2026: Under construction; updates in early/mid‑2026 show the structure surpassing 80–100 floors, with completion targeted around 2028 as part of Saudi Vision 2030.
Role: Anchor for “Kingdom City”, a $20‑billion new urban development, and flagship of national ambition.
Cost Overview: How Expensive Are They?
Precise, fully updated cost numbers are difficult because budgets evolve, but informed estimates and industry reports provide reasonable ranges.
Jeddah Tower – Cost and Scale
A 2026 construction update describes Jeddah Tower as a 530,000 m² (5.7 million ft²) mega‑project rising at an expected construction cost of about $1.2 billion for the tower itself, anchored in a $20‑billion larger Kingdom City development.
A later contract with Saudi Binladin Group referenced a SR 7.2 billion (~US$2 billion) construction contract in 2024, underlining the project’s scale.
Even if final figures shift, Jeddah Tower is clearly a multi‑billion‑dollar undertaking, especially once you include infrastructure and surrounding development.
Burj Khalifa – Cost and Economic Impact
While the snippet above doesn’t give a direct cost number, external analyses widely cite total development costs in the US$1–1.5 billion range for the tower, with the entire Downtown Dubai district involving several times more. (This is consistent with earlier project summaries; the core technical source here emphasizes its engineering and impact rather than its exact price.)
The Burj Khalifa is framed as a catalyst for further investment, attracting tourism, high‑end retail, and global attention, which has been central to Dubai’s growth strategy.
Merdeka 118 – Cost and Structural Efficiency
Technical literature on Merdeka 118 focuses on pushing concrete technology rather than headline cost, but the project is consistently described as a large‑scale mixed development, implying multi‑billion‑dollar investment.
By using high‑performance concrete up to strength class C105 in mega‑columns and core walls, engineers reduced element size while maximising premium floor area—essentially getting more rentable space out of each structural dollar.
Across all three towers, the core message is that they are multi‑billion‑dollar symbols of national ambition, with Jeddah Tower and Merdeka 118 coming online in a world already shaped by what Burj Khalifa proved for Dubai.
Technological Features: What Makes Them “Advanced”?
Burj Khalifa – Integrated Engineering and Energy Systems
A technical overview of Burj Khalifa highlights several innovations:
Advanced structural system:
A reinforced concrete core with flanking wings and a steel spire, rotated to mitigate wind loads based on prevailing wind direction. This allowed extreme height without supplemental damping devices.
Facade and solar management:
High‑performance cladding with high shading coefficient and low U‑value to reduce heat gain in the desert climate.
Automated solar shading at entrance pavilions to minimize direct solar load.
Renewable and resource systems:
Solar thermal panels that can heat about 140,000 liters of water per day, saving roughly 3,200 kW per day and 690 MWh per year.
Condensate collection from the cooling system provides about 15 million gallons of water per year for irrigation of an 11‑hectare landscaped area—recycling water that would otherwise be wasted.
These systems show how a mega‑tall building in a hot, arid environment can use technology to reduce the environmental penalty of its size.
Merdeka 118 – High-Performance Concrete and Structural Optimization
A 2025 concrete technology paper on Merdeka 118 reveals how its height and economics depend on material innovation:
High-Performance Concrete (HPC):
Application of concrete strength up to C105 in mega‑columns and core walls allowed slimmer structural elements, improving gravity and lateral load capacity while freeing more usable floor area.
Mega-tall development strategy:
By optimizing structural size with HPC, the project maximizes premium, high‑value floor space, which is crucial to making such a tall tower financially viable.
Merdeka 118 is therefore an example of materials‑driven technology: the “smart” part is as much in the concrete mix and structural system as in digital building controls.
Jeddah Tower – Vision, Engineering, and Smart City Context
For Jeddah Tower, the latest updates emphasize scale and symbolic technological ambition:
Height frontier:
Targeting roughly 1,000+ meters, Jeddah Tower aims to be the first “kilometer‑high” skyscraper, surpassing Burj Khalifa once completed.
Structural engineering challenge:
Engineers from Thornton Tomasetti report that more than 50% of the concrete work was complete by early 2026, with the structure surpassing 80 floors and heading toward 100, requiring extreme attention to wind, load, and constructability at height.
Smart city anchor:
The tower will anchor Kingdom City, a $20‑billion development under Saudi Vision 2030, meant to showcase advanced urban planning, mixed uses, and likely high‑end smart‑building technologies throughout the precinct.
While less detail is public on Jeddah Tower’s exact building systems, its context and engineering indicate that it will apply state‑of‑the‑art structural, MEP, and digital building technologies at an unprecedented scale.
Positive Contributions: What Do These Skyscrapers Actually Add?
1. Economic Catalysts and Brand Power
Burj Khalifa triggered massive investment in Downtown Dubai, boosting tourism, retail, and real estate, with analysts attributing a large share of Dubai’s global city branding to the tower.
Merdeka 118 is designed as a mixed‑use hub and national symbol, reinforcing Kuala Lumpur’s position in Southeast Asia’s financial and cultural landscape.
Jeddah Tower, as a centerpiece of Saudi Vision 2030, is expected to cement Jeddah and Saudi Arabia as a global destination, diversifying beyond oil into tourism and services.
For developers and governments, the “technology” is partly economic and psychological: these towers signal capability and stability, attracting investment and visitors.
2. Advancements in Construction Technology
Burj Khalifa’s structural and facade solutions influence skyscraper design around the world, demonstrating how reinforced concrete, tuning for wind, and integrated energy systems can work at extreme height.
Merdeka 118 pushes high‑strength concrete to C105, giving the industry a real‑world case study of how advanced materials reduce structural bulk and improve performance.
Jeddah Tower’s engineering—if completed successfully—will be a reference for kilometer‑tall structures, offering data and methods for future high‑rise projects.
These insights feed back into more “ordinary” tall buildings that can adopt refined structural and energy strategies.
3. Urban and Social Use
Mixed‑use programming (offices, hotels, residential, observatories, public plazas) can support dense, transit‑linked urban nodes, which in theory reduce sprawl and car dependence.
Observatories, cultural spaces, and public realms at these sites also create shared civic experiences, not just private luxury.
Critical Perspectives: The Downsides and Risks
1. Symbolism vs Sustainability
Sustainability analyses warn that extremely tall skyscrapers, even when built “green,” may not be the best emissaries of a truly sustainable economy if they divert huge material and energy resources for symbolic height rather than broad housing or infrastructure needs.
Large landscaped podiums, cooling needs, and vertical transport all impose ongoing energy demands—though advanced design helps reduce this compared with older towers.
2. Inequality and Access
Many benefits (luxury apartments, premium offices, five‑star hotels) are accessible mostly to wealthy individuals, corporations, and tourists, while ordinary residents may see little direct benefit beyond employment in construction and services.
If public transport and inclusive urban planning don’t accompany such projects, they can become isolated “vertical islands” of privilege.
3. Financial Risk and Opportunity Cost
Multi‑billion‑dollar mega‑projects carry the risk of cost overruns, delays, and market changes—Jeddah Tower itself experienced pauses and remobilization before regaining momentum.
Capital tied up in a prestige skyscraper might have funded wider housing improvements, transit, or climate resilience, which could arguably yield higher social returns.
4. Technical and Operational Complexity
Operating and maintaining highly complex facades, elevators, MEP, and window‑cleaning systems is technically demanding and expensive. Burj Khalifa’s exterior maintenance alone required novel specialized systems.
Without robust long‑term asset management, tech‑heavy towers risk becoming obsolete or inefficient if systems are not updated.
Comparative Summary: Jeddah Tower vs Burj Khalifa vs Merdeka 118
Height and Ambition:
Burj Khalifa remains the tallest completed tower (828 m), but Merdeka 118 has already overtaken Shanghai Tower as the second-tallest, and Jeddah Tower is poised to surpass both if completed at ~1,000 m.
Technological Focus:
Burj Khalifa: advanced structural design and energy systems (solar water heating, condensate reuse, high‑performance facade).
Merdeka 118: extreme high-strength concrete and structural optimization to maximize floor space at mega‑tall scale.
Jeddah Tower: frontier height and integrated smart‑city context, testing materials, wind engineering, and long‑term smart‑building concepts at an unprecedented scale.
Cost and Economic Strategy:
All three cost billions of dollars when considering tower and district; they are national branding and diversification tools more than standalone real estate.
Real Contribution to Work and Society
From a global perspective, these skyscrapers:
Advance engineering and materials science, providing knowledge that can improve more routine buildings in terms of structure and efficiency.
Contribute to urban densification and transit‑oriented development when well‑integrated, potentially reducing horizontal sprawl.
Serve as testing grounds for energy systems, water reuse, and digital building management that can be applied to mid‑rise offices, hospitals, and housing.
At the same time, they:
Concentrate investment and attention on highly visible icons, which can overshadow the urgent need to upgrade existing building stock for climate resilience and affordability.
Risk reinforcing status and inequality, especially when public access and integration with wider city life are limited.
In 2026, Jeddah Tower, Burj Khalifa, and Merdeka 118 together define the frontier of expensive, high‑tech vertical ambition. Their true long‑term value will depend on whether their engineering lessons and urban strategies are shared and scaled beyond iconic skylines—into the everyday buildings where most people actually live and work.
