Since 2002, the overpopulated city of Zhengzhou has been developing its new financial center, Zhengdong New Area, within China’s Central Plains Economic Region. The area, once dubbed by international media as one of China’s largest “ghost districts”, is where Crossboundaries’ latest completed project – Soyoo Joyful Growth Center, is situated. The building is part of a triumvirate of desolate round buildings, never used since it was built as a business center 10 years ago.

Project Name: Soyoo Joyful Growth Center
​Client: Soyoo Castle Enterprise Management Co., Ltd
Location: Zhengzhou, China
Architect: Crossboundaries, Beijing
Partners in charge: Binke Lenhardt, DONG Hao
Team: Tracey Loontjens, LI Zhenyu, earlier stage: Cristina Portoles, Brecht Van Acker, Filip Galuszka, Diego Caro
Area: 28,200 sqm
Appointment: January 2013
Completion: June 2015
Photographs: Yang Chaoying

Soyoo Joyful Growth Center By Crossboundaries - Sheet2
©Yang Chaoying

More Than a Building to Design, but a Vision to Lead

Practicing architecture in China is never just about the building. The practitioners can, if they are willing, be the architect’s second definition in the Oxford Dictionary: A person who is responsible for inventing or realizing a particular idea or project.

At the beginning of Soyoo’s commission, a vision was put forward to “make a difference in Chinese education”. The conversation between Soyoo and Crossboundaries became a living brief defining what difference to make, starting from its pedagogic philosophy.

Through extensive research on education conducted by Crossboundaries, Soyoo embraced aholistic approach to education. It does not limit intellectual development through academic instruction. Instead, it actively cultivates each child’s distinct character and interest, as well as develops its healthy relationship with the people and knowledge of the world.

The response Crossboundaries provided is a program based on role-playing. Children are free to explore what they should learn in order to become whoever they want to be on a particular day.

Soyoo Joyful Growth Center By Crossboundaries - Sheet4
©Yang Chaoying

Amidst the rising trend of learning through play, this novel and holistic program positions Soyoo as the leader in the booming market for children’s recreational facilities.

While regulations for conventional educational facilities were well in place both internationally and in China, placing this program in a large existing structure required a new spatial typology.

Translating Holistic Education to a Spatial Textbook

From several entrances, children enter Soyoo into an open lobby on the ground floor with play frames andchildren’s retail stores.At the center of it, light shines through the sky light, eyes could be led through the fan-shaped swimming pool area.

The main program on the second floor, consists of spaces for reading, art, music, dance, geography, etc. They flow from one space to the next without barriers, suggesting knowledge is, rather than segmented, interconnected. This open plan layout encourages interaction between children and allows them to experience different subjects in a broader context.

This program of the building extends to the third and fourth floor’s outside space. On the third floor are more learning areas, a planetarium and a green house, as well as a Soyoo operated Kindergarten. While the fourth floor, the roof, provides a running track and playgrounds.

Soyoo Joyful Growth Center By Crossboundaries - Sheet6
©Yang Chaoying

In addition to the existing vertical circulation within the building, Crossboundaries provides children with additional pathways. Five tubes of different colors cut through the building in different angles, deliberately breaking the rigidness of the floor plates. Similar to a subway system, these tubes intersect and lead children to different parts of the building.

A child begins in a color tube, allowing its interest to guide it through various fields of knowledge and explore their interconnections. The experience is never the same for any one child, depending on each visit, opening up a multitude of journeys in Soyoo, as well as in a universe of knowledge and social interactions.

The spatial solution for Soyoo resonates international advisor Sir Ken Robinson’s philosophy on education. That it should be personalized and children should be exposed to an environment where they appreciate learning and discover passions.

A Vital Contribution to the Residential Neighborhood

Required by the municipality, a percentage of the building’s original facade had to remain visible, to preserve its affinity to the other two buildings in the development. However, the original cladding of stone and aluminum did not reflect the building’s new function as a children facility. Its horizontality and large facade area added as much heaviness from outside as dullness inside.

These challenges resulted in Crossboundaries’ innovative yet effective solution –lightweight ropes spanning from the existing roof to the ground. Installed diagonally and of double layering, they diminish the original building’s rigidness and add richness without blocking any light. To provide ease for orientation, the ropes’ color follows the same color palette as indoor – a color wheel. People weave around between the old facade and new ropes facade, touching them as they vibrate with the wind.

Soyoo Joyful Growth Center By Crossboundaries - Sheet6
©Yang Chaoying

A large public space opens up to the road intersection, easily accessible from all sides of the site. Benches and planting are offered to provide a pleasant environment beyond the building. This plaza isn’t just given to children to play but also to the city dwellers, as a place to relax and gather.

Soyoo invigorates the numerous peripheral residential compounds built over the years. Its intriguing educational program and public space attracts a flow of people and businesses, neighboring retail spaces opening soon after construction began. The building as a whole creates coherence and connections within the community, adding vitality to a long disengaged residential neighborhood.


Crossboundaries contributes to a vital built environment through architecture, environmental design and urban regeneration. The studio creates enduring architecture that often deals with remarkable technical processes, yet always has a pleasant material touch and human atmosphere.

Organized as an international partnership, Crossboundaries has staff originating from and trained in different parts of the world. Its first office was founded in Beijing, China in 2005, by Binke Lenhardt and DONG Hao, later, in 2012, a partner office was established in Frankfurt, Germany by Binke Lenhardt and Antje Voigt.

After receiving their Masters Degrees in Architecture from Pratt Institute, Binke Lenhardt and DONG Hao worked in New York for several years before making their home in China. In Beijing they both started off in the Beijing Institute of Architectural Design (BIAD) before founding Crossboundaries. Today they frequently lecture and teach at the Central Academy of Fine Arts (CAFA) and at Tsinghua University.

From urban scale architecture all the way down to graphic design, to teaching and event creation, Crossboundaries practices by name, crossing the boundaries into activities and dialogues in the broad field of design and the subject of architecture, continually thinking and doing, the studio is engaging, evolving and adapting.

Crossboundaries has completed a wide range of small scale interior designs and architectural projects of larger sizes. The project portfolio includes Aimer’s Lingerie Factory, several Beida High Schools, Family Box, Soyoo Joyful Growth Center, kindergartens in rural areas, showrooms and offices in collaboration with Siemens and BMW. The firm engages in theoretical research projects such as China House Vision, exhibited at the 15th International Architecture La Biennale di Venezia and also in Beijing in 2018 and is actively participating the current discourse on architecture in China.

Crossboundaries’ work has been published across a range of leading industry magazines and is also frequently featured in the online design media. The practice has received multiple international accolades, most recently the 2021 Architizer A+Awards and the 2021 Design Educates Awards (Honorable Mention), followed by the 2020 Iconic Award, the German Design Award, Masterprize, Plan Award and AD China top 100, among many others in previous years.

In addition the company was recognized multiple times for their social engagement and shortlisted for the CSR Award (German Chamber of Commerce) and the Social Impact Award (British Chamber of Commerce) in the years 2019, 2020 and 2021.


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