TwistBlocks
Residents can manufacture TwistBlock moulds in nearby workshops, generating employment and retaining value within their community.
Our Commitment on the Ground
The TwistBlocks are a fireproof construction system made of hollow concrete blocks. The interlocking system enables complex floor plans and fast, mortar-free assembly with no need for plastering. The block molds are made in local workshops, which creates jobs and strengthens the local economy. The result is robust buildings made from available resources. PERI worked with Start Somewhere to develop the TwistBlock Moulds: a reusable formwork system made of recycled plastic. Working with dedicated partners, the project aims to durably improve the living conditions of local people and to reinforce their economic prospects.
Our School Projects
As a company, and in collaboration with our employees, we want to be a role model with our corporate social responsibility projects and show that small steps can have a positive social impact.
School in Kibera (Nairobi, Kenya)
Our first PERI school was built in Kibera, an impoverished area near Nairobi, one of the largest low-income neighbourhoods in East Africa. In cooperation with the Global One Foundation, a three-storey school building for primary school children has been constructed using locally produced TwistBlocks.
The ground floor houses the teachers' room, kitchen, and toilets. The upper floors comprise eight classrooms for up to 40 children each, along with washing facilities. The rooftop serves as a play area, as there is no open space for children to play in the densely built-up underserved community.
In 2024, the first PERI school was opened in Kibera, Nairobi.
The Global One Foundation operates the school. Since 2012, it has been committed to supporting disadvantaged communities in Africa through a holistic approach — providing education, healthcare, daily meals, and access to clean water. It currently runs three schools for 700 children.
Due to the increasing frequency of droughts in East Africa, Global One also runs an organic farm that produces up to 32,000 meals per month for the community.
Over 200,000 people live in Kibera in difficult conditions — often without reliable access to electricity, water, or sanitation.
School in Syangeni (Kitui, Kenya)
Together with the PATRIZIA Foundation and Welthungerhilfe, in 2025 we expanded the PATRIZIA School in Syangeni, a rural village in Kenya’s Kitui region near Tsavo National Park. The area is one of the poorest in the country, with frequent droughts and limited economic opportunities — making education the key to a better future.
The school, which opened in 2017, was overcrowded due to growing demand. The expansion included:
- Dormitories for 50 boys and 50 girls
- Six teachers' houses
- A new “Future Classroom” for digital learning and vocational training
- Sustainable infrastructure: solar power, water tank, and garden irrigation
Learn how TwistBlocks can make a difference
Governance
Our responsibility to customers, workers, providers of capital and society is codified.