Semi-finalist
Climate Adaptation & Low-Carbon Housing Challenge

Reusable community-made building blocks for resilient homes

Team Leader
Oliver von Malm
Solution Overview & Team Lead Details
Our Organization
Start Somewhere
What is the name of your solution?
Reusable community-made building blocks for resilient homes
Provide a one-line summary of your solution.
Our building system is designed to improve affordable housing in the Global South. The innovative hollow concrete blocks are manufactured by residents of disadvantaged regions in decentralized small factories. Our "TwistBlocks" are affordable, adaptable to each site and can even be reused.
Film your elevator pitch.
What specific problem are you solving?
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The global housing crisis is one of the most pressing challenges of our time, affecting billions of people worldwide. The United Nations estimates that by 2030, over three billion people will need access to adequate housing. The crisis is particularly severe in developing countries, where rapid urbanization and inadequate infrastructure have led to the proliferation of slums and informal settlements.

These settlements are often characterized by poor living conditions, lack of access to basic services like clean water and sanitation, and constant risk of eviction. Residents of informal settlements typically live in shacks made of flimsy materials like wood, mud, and sheet metal, which are highly susceptible to fires, flooding, and other natural disasters. These disasters can result in significant loss of life, property, and jobs, further exacerbating the housing crisis. Since 1990, an average of 217 million people have been affected by natural disasters each year.

In addition to natural disasters, the housing crisis is also driven by systemic economic and social factors, including high unemployment rates, lack of affordable credit, and discriminatory policies. Many low-income residents work as poorly paid day laborers in large cities under unfair conditions, making it difficult to save for better housing or access formal credit.

Plus, in informal settlements, the constant risk of eviction discourages
people from investing their limited financial resources in better
housing.

Addressing the housing crisis requires innovative solutions that are accessible and affordable to everyone. Our organization is committed to providing such solutions through our locally produced TwistBlock technology, which allows for affordable and efficient construction of housing using unskilled labor. This approach not only helps to address the housing crisis but also provides employment opportunities and economic empowerment for local communities.

What is your solution?

Start Somewhere is a social enterprise that aims to promote resilience in impoverished regions of the Global South. We strive to address pressing issues, such as housing and unemployment, faced by vulnerable populations. Our core technology is an innovative and user-friendly building system that is produced and applied locally by community members.

Our approach is decentralized, empowering people in disadvantaged areas by bringing industry to their communities. We create employment opportunities through small-scale concrete block factories that produce our newly invented "TwistBlocks", handmade by local residents. TwistBlocks are easy to use and can be assembled by unskilled labor, creating a local value chain that helps alleviate poverty and housing in the long term. Our construction projects not only lead to better housing and schools but also generate employment opportunities on construction sites at the local level. 

Our impact extends beyond the construction phase, as we reinvest rental income from our projects back into the community, funding additional residential projects. With TwistBlocks, residents and NGOs can build resilient and affordable homes that support a holistic approach to community development. 

Our innovative technology also enables private home ownership in uncertain legal environments like informal settlements. In case of eviction, 85% of the blocks can be dismantled and reused.

By providing an adaptable and sustainable solution, we are helping to build resilient communities and improve the lives of vulnerable populations.

Video Link: Twist Block Production and Construction in Kibera, Nairobi




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Who does your solution serve, and in what ways will the solution impact their lives?

We target our intervention towards people living in vulnerable regions in the Global South. Our focus is on communities where access to basic infrastructure including water, sanitation, housing, employment, and food is limited. People are empowered through know-how transfer and job creation using a newly developed building technology. This improves living conditions and increases resilience of the communities.

An example is Kibera in Nairobi, Kenya, where 60% of the population live in slums occupying less than 6% of the city’s residential land. Residents lack access to basic services and have limited job opportunities with an unemployment rate of around 50%. Housing is a major concern, with most residents living in small, cramped quarters with no windows and just one door. The average size of a house is about 8m². Household sizes vary, but it is not uncommon for a house to be a home for eight people.

Residents are not in the position to own land and build a house, whether using iron cladding, mud walls, or concrete in some cases, tend to rent the houses out and develop a small property portfolio. Rents for houses in Kibera at $25 per month, up to $50 per month for larger houses that accommodate a family. 

To address these challenges, we are establishing small-scale TwistBlock factories that create ethical and equal job opportunities, meet local labor standards, and prioritize labor-intensive processes to ensure fair distribution of work. Our building system has gained acceptance and residents have started using the technology to build their own local projects.

Since the opening of our first TwistBlock factory in Kibera, we have employed seven local workers and produced TwistBlocks to build two schools, a library, 12 housing units, and several sanitary buildings. Our intervention has significantly improved the learning environment for over 1200 children in Kibera.

Our goal is to fight poverty by making resilient housing more affordable and accessible to the people living in these communities. We believe that safe and healthy private homes provide hope for the future, and better homes, schools, and community buildings can prevent disasters such as fire, flooding, and extreme heat.

Along the value chain, people find opportunities in training and know-how, permanent and casual jobs in local factories and on construction sites. Plus private ownership is facilitated because up to 90% of the blocks can be deconstructed in case of eviction. All activities contribute to creating value in the slum and improving the lives of its residents.

In conclusion, our intervention is aimed at creating sustainable change in vulnerable communities through empowerment and job creation. We believe that our approach, as demonstrated in Kibera, can make a significant impact on the lives of those living in disadvantaged urban areas.

 Link to Video: Testimonials and Projects of Start Somewhere in Kibera, Nairobi


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How are you and your team well-positioned to deliver this solution?

Start Somewhere is a design and construction team made up of a German social enterprise and a Kenyan Ltd company. We have more than 10 years of experience in implementing projects in the informal settlement of Kibera and beyond. Our team has 15 members, 4 in Germany and 11 on site in Nairobi, with most living in the informal settlement of Kibera and knowing the challenges of the community first hand.

Delivering good community projects requires more than just time and experience. It takes clarity on goals, visions, and ownership of the process. This is critical to ensure the project is widely acknowledged, and it guides creativity, inclusivity, and acceptance.

We use a community-driven design participatory engagement approach to increase understanding of community needs and enable collaboration and partnership between professional designers and community residents. This allows residents and clients to have a stake in what is built around them and provides a sensitive moral dimension to architecture.

Our team believes that architecture is not just about designing and building physical spaces, but also about creating active, vibrant, and inviting environments that are owned by the needy society.

Through our local community expert, we ensure an early involvement of the community in every project, presenting architectural designs within community events where local authorities also participate. Everyone can discuss the design draft and bring in ideas that are incorporated into the design.

Our factory is located in the heart of Kibera with the motto "Change from Inside". People can come in, ask questions, or work as volunteers to learn how to use and produce the building system. The factory team itself contributes valuable input, such as ideas on improving the production process and developing colored blocks with pigments.

The team conducts guided tours for visitors to explain the production process and visit several TwistBlock Buildings in Kibera that are visible for the community. We work closely with our project management team to coordinate skilled and unskilled workers on site and ensure adherence to construction standards, approvals, and health and safety policies at all times.

In conclusion, Start Somewhere's community-driven design approach and partnership with local residents and stakeholders enables us to deliver impactful and sustainable projects that address the needs of the community. Our team's diverse expertise and on-site presence positions us well to continue delivering innovative solutions for the benefit of the local community.


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Link: Team Start Somewhere

Which dimension of the Challenge does your solution most closely address?
  • Support informal communities in upgrading to more resilient housing, including financing, design, and low-carbon materials or energy sources.
In what city, town, or region is your solution team headquartered?
Munich
In what country is your solution team headquartered?
  • Germany
  • Kenya
What is your solution’s stage of development?
  • Growth: An organization with an established product, service, or business model that is rolled out in one or more communities
How many people does your solution currently serve?

Our solution currently serves a diverse range of individuals and communities in Kenya across Nairobi and Kisumu.

This includes 9 employed individuals from Nairobi, who work in our TwistBlock factory in Kibera as well as an average of 15 casual workers per day on our current school construction site and their families.

Thanks to the construction of 2 new schools and 1 library using our
innovative TwistBlock technology, we are now serving approximately 1500
school children and teachers in Kibera who previously struggled with poor, hot structures.

We have also built water tank stations out of TwistBlocks in
Kibera, which are being used by a hard-to-estimate number of people
daily.

5 local workers are permanently employed in the newest TwistBlock factory located in Ahero, Kisumu, near Lake Victoria.

By today, 11 families are living in new housing units out of TwistBlocks rebuilt after a big fire outbread in Kibera.

It is important to mention that the jobs in the manufactories and on the construction sites also benefit the families of the respective local workers.

Testimonials from Kibera

Teacher from Kibera

Resident of Kibera new housing units

Why are you applying to Solve?

Start Somewhere is currently in the midst of an important transition,
moving from a "proof of concept" phase to a sustainable business model.
Our aim is to achieve sustainable growth to scale up our solution while facilitating access to affordable housing and business opportunities.

This includes the planning and implementation of construction projects, the expansion to South Africa and Uganda, the expansion of production in Kenya, the establishment and management of three business units with administration, finance, human resources, communication, events, lectures and fundraising. For all these activities Start Somewhere needs sufficient and appropriately qualified manpower.

For this transition to be successful, Start Somewhere requires both financial and non-financial support. This requires establishing a solid business
model, optimizing the TwistBlock production process for efficiency,
creating training materials and tutorials, and developing a franchise
system for TwistBlock factories.

Additionally, we need to establish a network of local construction partners, a comprehensive project controlling system, and local marketing and distribution channels for TwistBlocks. Leadership coaching will also be essential for guiding the company through this important transition period.

We are looking for grants to realize our next big step carbon neutral TwistBlocks made out of plant based materials like hemp or rice husks.


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In which of the following areas do you most need partners or support?
  • Business Model (e.g. product-market fit, strategy & development)
  • Financial (e.g. accounting practices, pitching to investors)
  • Human Capital (e.g. sourcing talent, board development)
  • Product / Service Distribution (e.g. delivery, logistics, expanding client base)
Who is the Team Lead for your solution?
Oliver von Malm, Architect, Founder and CEO of Start Somewhere
More About Your Solution
Your Team
Your Business Model & Funding
Solution Team:
Oliver von Malm
Oliver von Malm
Architect, Founder and Director
Kristina Cress
Kristina Cress
Director
Claire du Plessis
Claire du Plessis
Silvia Hesse
Silvia Hesse
Director
Lazarus Asewe
Lazarus Asewe
Project Manager/PM
Brenda Lumumba
Brenda Lumumba
Treasurer NGO Board SSW Kenya
Odulah  Benmike
Odulah Benmike
Site Engineer