Construction Technology and the Future of Low-Carbon Cities

The global construction industry faces a difficult challenge. Cities must expand housing and infrastructure to accommodate growing populations while simultaneously reducing carbon emissions.

Construction currently accounts for a significant share of global greenhouse gas emissions, largely due to the energy-intensive production of materials such as cement and steel. New technologies are beginning to reshape how buildings are designed and constructed.

At innovation platforms such as SusHi Tech Tokyo, startups are presenting solutions that could help make construction faster, more efficient and potentially more sustainable.

Automation in Construction

One of the most promising developments in the sector is the use of automated construction technologies. Japanese startup Serendix is among the companies exploring the use of large-scale 3D printing systems to build houses.

The company’s technology aims to automate parts of the construction process, potentially reducing labour requirements and shortening construction timelines. In regions affected by disasters, rapid construction technologies could also accelerate rebuilding efforts.

Serendix has explored applications of its technology in reconstruction projects, demonstrating how automation could play a role in rebuilding communities after major disasters.

Reducing Construction Waste

Traditional construction processes often generate significant amounts of waste. Automation and digital design tools allow buildings to be constructed with greater precision, reducing material waste and improving efficiency.

In addition, advanced materials and new manufacturing techniques are helping companies develop lower-carbon alternatives to traditional construction materials. Some startups are experimenting with bio-based materials, recycled composites and advanced polymers that reduce environmental impact.

Construction technology is also evolving alongside advances in digital infrastructure. Smart building systems can monitor energy use, optimise heating and cooling and integrate renewable energy sources.

Sensors and digital management platforms allow building operators to track energy consumption in real time and adjust systems to improve efficiency. Over time, these technologies can significantly reduce the environmental footprint of urban infrastructure.

Cities as Innovation Platforms

Cities are increasingly becoming laboratories where new construction technologies can be tested and deployed.

Urban development projects provide opportunities to experiment with advanced building techniques, smart infrastructure and sustainable materials. Japan’s dense urban environment and advanced engineering capabilities make it an ideal setting for these experiments.

Events such as SusHi Tech Tokyo provide a venue where developers, engineers, startups and policymakers can explore these technologies together. The future of urban development will depend on the ability to balance growth with sustainability.

Construction technologies that improve efficiency, reduce waste and support climate resilience will play a crucial role in this transformation. Startups operating in this space are still at an early stage, but their innovations could have far-reaching implications for the design of future cities.

As urban populations continue to expand, the technologies emerging from this new generation of construction innovators may help determine how cities evolve in the decades ahead.