Turning concrete rooftops in Shenzhen into community gardens

# Why Shenzhen turned to rooftops

# The We Garden initiative The city promoted the 共建花園 (Gòngjiàn Huāyuán), or We Garden, initiative. The program converts building roofs into community gardens and shared-use spaces. These rooftop projects aim to provide amenities that would otherwise be difficult to create on the ground because of land-use restrictions.

# How the projects solve practical constraints Converting concrete roofs into usable community space required addressing three main constraints: limited footprint, tight budgets, and building-permit limits. Projects used several concrete tactics:

• Modular planning: 11architecture used 708 modular standard logistics units to optimize the small rooftop footprint and speed construction.
• Funding partnerships: Local NGOs, industry associations and private firms pooled money. For example, American Polar Airlines contributed to construction of one community farm to help fund greening and environmental protection efforts.
• Low-carbon measures to ease approvals: Solar panels were added above planned sunshade canopies to support Shenzhen's low-carbon goals, which smoothed building approval processes.

# Case study: Boonself Apartments rooftop (Nanshan) Apartments (邦舍青年) rooftop in Nanshan demonstrates the combined approach. The project converted about 450 square meters of roof into a multifunctional space. That rooftop now supports rental farms, hosted events and serves as a place for community gatherings. Key partners included the Shenzhen Green Foundation, The Nature Conservancy, 11architecture, Shenzhen New Energy Association, American Polar Airlines and the Nanshan Urban Management and Law Enforcement Bureau.

# Urban-village focus: Gangxia Village (Futian) Another rooftop project sits above buildings in Gǎngxià (岗厦) village in Futian district. Gǎngxià is an example of an "urban village," an area that began as a traditional village and then became surrounded by high-rise development. Urban villages have dense living conditions and limited open space, so rooftop gardens provide residents with rare outdoor communal space.

# Uses and community benefits Rooftop gardens in Shenzhen are programmed for multiple uses: small-scale agriculture (rental farm plots), local events, informal gatherings and neighborhood activities. The mix of uses helps the spaces remain active and accessible to residents who lack ground-level parks.

# Design and regulatory lessons Design choices were pragmatic: modular elements to fit tight layouts, solar canopies that double as environmental infrastructure, and multiparty funding to cover shortfalls. These tactics also addressed municipal priorities—especially low-carbon objectives—making it easier to secure approvals and long-term viability.

# What this shows for dense cities Shenzhen's rooftop gardens show one way dense cities can expand public amenities without new land: adapt existing roof structures, combine modular construction with strategic funding, and incorporate utility-level measures such as photovoltaics to align with regulations and climate goals. The approach targets neighborhoods with acute open-space shortages, like urban villages, where rooftop interventions can create meaningful local benefits.