Large geometric steel lattice sculpture suspended inside a tall square frame, with visitors atop and around, above lavender terraces in a park.
World Horticultural Exhibition
China
  • Cultural
  • Greenhouse
  • Landscape Design
  • Study

Nature is the main actor in this project. All pavilions and the tower are floating above the landscape yet are strongly embedded. The footprint of the buildings is kept as small as possible with natural elements as integral part of the architectural quality. The spatial experience is intensified by carefully orchestrating the relationship between routes, thresholds and spaces. These contain a range of experiential qualities that add atmosphere and character to the site.

The steel lattice construction Expo Tower was designed not only as a light and airy structure, but also to use as little material as possible and still create an impressive object that offers a spectacular experience. The unconventional footprint with many point connections to the ground leaves the landscape undisturbed and nature passes through seamlessly.

The design for the Plant Pavilion creates a lightweight natural membrane from the exterior natural landscape to the greenhouse interior providing desired heat and humidity for rare and tropical species. Inside the dome big bodies of water and rocks are used for thermal storage, waterfalls for controlling humidity, and south facing glass walls maximize solar exposure to consume as little of additional energy as possible.

Address
Chengdu
China

Competition
03/2022

Gross floor area
22.541 m² (Main Pavilion)
1.919 m² (WHE Tower)
7.045 m² (Plant Pavilion)
3.498 m² (Park Exhibition Pavilion)

Site area
1.773.765 m²

Built-up area
295.121 m³ (Main Pavilion)
3.196 m³ (WHE Tower)
126.392 m³ (Plant Pavilion)
12.151 m³ (City Exhibition Pavilion)



Project manager
Sebastian Brunke
Ernesto M. Mulch

Project team
Sebastian Brunke, Nele Herrmann, Thomas Peter-Hindelang, Gregor Hilpert, Ernesto M. Mulch, Dušan Sekulić

Visualization
Toni Nachev

CONSULTANTS
Coordination
Yiju Ding

Structural engineering
Bollinger+Grohmann

Aerial view of a lush, forested park with winding water channels and labeled pavilions, including Main Pavilion and Plant Pavilion.
Sketch of a futuristic lattice-roofed pavilion with triangular peaks on a platform by water, with small figures nearby.

Main Pavilion

Curved wooden pavilion with a glass entrance; people walk across a paved plaza amid trees and flowering shrubs.
Site plan of a multi-wing building on sloped terrain, showing interior rooms, stair cores, terraces, and contour lines.

Ground floor plan

Top-down site plan of a pentagonal courtyard garden with terraces, pathways, and three small square buildings; blossom trees scattered throughout.

Floor plan level 02

Aerial view of a hexagonal, tiered building with protruding balconies surrounded by trees, with a road and red entrance marker on the left.

Top view

People gathered in a spacious wooden atrium with geometric ceiling panels and stepped seating.
Cross-section of a modern hillside cultural center with tiered wooden roof, terraces and people inside, set among trees.

Section


World Horticultural
Expo Tower

Spiral staircase inside a tall skeletal frame, rising on a bare ground.
Suspended zigzag timber observation walkway above a forest hillside, with visitors on the elevated structure at sunset.
Architectural site plan showing a building with curved wing, grid-based courtyard plaza, red site boundary, surrounding contour lines and road.

Ground floor plan

Large diamond-lattice sculpture on a tall frame above a terraced hillside in a forest park at sunset; people atop the structure.
Cross-section of a tall glass building on a slope with red-clad people on terraces and exterior stairs; underground levels shown.
Large geometric steel lattice sculpture suspended inside a tall square frame, with visitors atop and around, above lavender terraces in a park.

Curved wire-mesh lattice arch on a white background.

PLANT PAVILION

Wooden lattice arch spans a park path; people walk beneath among trees and lavender.
Abstract schematic of a futuristic spacecraft featuring a rounded hull, internal rings, and a winding corridor against a gray background.

Entrance level

Aerial view of a diamond-patterned mesh structure surrounding a circular blue orb, suspended above a forest with winding roads.

Roof plan

Indoor tropical conservatory under a glass lattice dome, with a waterfall and lush plants as visitors stroll along elevated walkways.
Architectural cross-section of a curved lattice arch bridge over a hillside park, linking an underground gallery to the surrounding landscape.

Section

Timber lattice arch bridge over a stream in a lush forest; people walk beneath.

Cross-section of hill showing a circular tunnel with a spiral ramp inside, gridded earth shading.

Park City Exhibition Pavilion

Futuristic oval glass pavilion with a reflective surface, set in a forested landscape at sunset; curved walkway with a few pedestrians.
Top-down view of a circular, multi-ring pavilion on a riverside plaza, with grid paving and red-dotted figures.

Floor plan level 1

Top-down site plan of a circular geodesic-dome pavilion within a plaza, with grid paving, curved road, and a dark irregular mass at top left.

Floor plan level 2

Futuristic dome museum interior with a circular central exhibit; visitors view a blue city model, surrounded by glass railings and an ice-blue mural.
Cross-section of a curved-glass public space built into a hillside, with terraces, ramps, and visitors walking amid leafy trees.

Section

Futuristic curved glass building embedded in a grassy hill, surrounded by a forest.
People walk along a multi-level metal observation bridge over a winding river, bordered by forests and distant mountains.