Wongamat Tower: Pattaya’s Modern Landmark by Mario Kleff

2011: Pattaya Year of the Landmark Towers, published in REm Magazin, 2010

By Thiti Teerachin (ธิติ ธีรชินทร์) · Oct 27, 2025

Wongamat Tower, designed and engineered by Mario Kleff and Wandeegroup, redefined Pattaya’s skyline in 2010 as one of the city’s first true modern high-rises. Yet the architect behind its bold design and structural innovation has been largely written out of its history—a reflection of Thailand’s developer-dominated building culture.

In 2008–2009, when Mario Kleff created the W Tower — later renamed Wongamat Tower — Naklua had only a handful of high-rise buildings. It is unsurprising, then, that Wongamat Tower stands out with its modern architecture and engineering, while surrounded by the much older Silver Beach, Park Beach, and Wongamat Garden Beach Resort Condominiums, all built in the 1990s.

Designed and engineered by Mario Kleff and Wandeegroup — with full building and EIA permits secured — Wongamat Tower remains one of Pattaya’s most significant high-rise developments of the early 2010s. Rising from a narrow beachfront strip, the 38-storey structure (131 metres) marked a turning point in the city’s architectural evolution: a modern high-rise built with the precision and ambition rarely seen in Thailand’s coastal resort cities at the time.

Commissioned by Heights Holdings, the tower’s design pushed beyond the formulaic condominium trend then sweeping Pattaya. Its slim structural frame, reduced column grid and 13-metre-high lobby reflected an architect testing the boundaries of what was technically and legally possible in the city’s dense beachfront zones. But while the developer’s name adorns the sales materials, Kleff’s authorship — and the role of Wandeegroup’s engineers — has been largely erased from public record.

That omission is more than a marketing oversight; it speaks to a broader pattern in Thai real estate where the architect’s identity is subordinate to the developer’s branding. In the case of Wongamat Tower, the irony is sharper still. It was Kleff’s firm that not only conceived the design but also delivered the structural engineering, obtained the building permit, and guided the Environmental Impact Assessment approval — the bureaucratic linchpins without which the project could not have risen from the sand.

By 2010, when construction accelerated, Wongamat Tower was unlike anything else in Pattaya’s tower addition. Its scale, glass façade, and efficient column-free interiors suggested a city beginning to imagine itself in high-rise terms. The project’s contractor, Lock-Build Group, delivered with impressive speed — though such pace raised predictable questions about oversight and long-term quality. However, Kleff’s name could not be found on the construction site posters.

“I find it very strange that Mario Kleff’s name is not on the billboard at the construction site, after all the building is designed by him – please give the man some credit for his work.”

Wongamat Tower’s aesthetic was both aspirational and uneasy: an emblem of urban progress in a city struggling to reconcile development with liveability. Behind the polished renderings lay the familiar tension between architecture as vision and construction as commodity. The tower’s success in redefining “luxury beachfront living” came at the cost of obscuring its creative origins — a reminder that in Thailand’s property sector, visibility is reserved for those who sell, not those who design.

More than a decade later, Wongamat Tower stands as a case study in both achievement and erasure. It represents a critical moment when Pattaya’s built environment began to move decisively into the modern era — and when the names shaping that transformation started to disappear behind the corporate curtain.

Afterword about Wongamat Tower

What began as W-Tower — the “W” standing for Wandeegroup — was quietly rebranded Wongamat Tower once the project shifted under developer control. In the process, the architect’s name faded from the story.

Mario Kleff designed Wongamat Tower not as a showpiece but as proof that modern engineering and architectural integrity could exist in a city built on speculation and speed. The proof still stands; his credit does not.

What was once conceived as an architectural statement became a marketing product. The building remains, sleek and precise, while the author of its design has been erased from its narrative — a familiar pattern in a property culture that prizes the sale over the idea.

More than a decade later, Wongamat Tower stands as both achievement and omission. For a complete record of its design, engineering, and early development, visit the Wongamat Tower showroom.