RAU Architects and Ro&Ad Architects have designed the egg-shaped Tij Observatory for the Scheelhoek Nature Reserve in Stellendam, the Netherlands.

Designed for birdwatchers observing the Sandwich terns that nest off the coast of the island of Scheelhoek, the observatory takes its form from a tern’s egg.

RAU Architects和Ro&Ad Architects為荷蘭斯泰倫丹的Scheelhoek自然保護區設計了蛋形Tij天文台。


Amsterdam studio RAU Architects, in collaboration with Ro&Ad Architects, clad the rounded form in thatched reeds from the local nature reserve.

Tij Observatory, which translates as Tide, is one of a series of commissions funded by the Dutch lottery. It was built to celebrate the opening of sluices at Haringvliet, an inlet of the North Sea that was originally closed as part of the Delta Works in the 1960s.

阿姆斯特丹工作室RAU Architects與Ro&Ad Architects合作,在當地自然保護區的茅草蘆葦叢中塗上圓形。

Tij Observatory,翻譯為Tide,是由荷蘭彩票資助的一系列佣金之一。 它的建造是為了慶祝Haringvliet水閘的開通,Haringvliet是北海的一個入口,最初是作為20世紀60年代三角洲工程的一部分而關閉的。

“By building everything in such a way that everything can be taken apart without losing any of its value, we ensure that the strain on the ecosystem is minimal,” said Thomas Rau, founder of RAU Architects.

“Thanks to its complete rebuilding capabilities, modularity and materialisation, it fully meets all the key point for a sustainable structure with circular potential.”

RAU Architects的創始人托馬斯·勞說:“通過以一種可以拆開所有東西而不失去任何價值的方式構建一切,我們確保生態系統的壓力很小。”


Materially, this timber frame is divided into two. The bottom section, which is expected to flood several times a year, is built from water-resistant beams of Accoya, a modified sustainable wood, and the top section is built from pine.

在物質上,這種木框架分為兩個。 底部部分預計每年會淹水數次,採用改良的可持續木材Accoya防水梁建造,頂部採用松木建造。

To minimise disturbance to birds, the final approach to the observatory is via a tunnel built from recycled bulkheads and covered with sand and nesting holes for sand martins.

A low wooden fence built from branches surrounds the perimeter of the egg, like a nest.



Small openings on either side of the egg allow for observation, while at its tip the thatch stops to reveal the wooden structure beneath.

Inside, the structure has been left completely exposed, and the floor covered with rocks. Stairs lead up to a raised circular walkway constructed from steel and cross-laminated timber, providing views out across the landscape.


在內部,結構完全暴露,地板覆蓋著岩石。 樓梯通向一個由鋼和交叉層壓木材建造的凸起的圓形走道,可以欣賞到整個景觀。

A large opening at the top of the egg, surrounded by reeds, provides light to the interior.

Architects often turn to natural materials to minimise their impact on the landscape when creating lookouts.

Norwegian architect Lars J Berge recently completed a wooden hide north of the island of Bergen, and Keeo4design designed an elevated spiralling lookout point in the Czech Republic.



挪威建築師Lars J Berge最近在卑爾根島北部建造了一個木製皮革,而Keeo4design在捷克共和國設計了一個高架螺旋式瞭望點。



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