In late 2025, New Zealand’s first on-site 3D-printed home was completed in Waiuku. The four-bedroom house was built using a computer-controlled printer that formed the concrete walls layer by layer. The project, led by Amcrete, is faster, uses less labour, and can reduce environmental impact. Despite these advantages, the method is not yet widely used.

A different way to build

The Waiuku home was printed in under 30 days. Only a small team was required to operate and monitor the machine. The process replaces traditional timber framing with printed concrete walls. The printer creates hollow wall shells. These are then reinforced and filled with concrete. Windows, doors, and interior finishes are installed afterwards.

Amcrete says its system can print a full house in a single run. It can produce a single-storey home of about 180 square metres within its operating range. Other companies are developing similar systems. Qorox has completed a fully 3D-printed home in Paremoremo using prefabricated panels.

Faster build times

Speed is a key advantage. RNZ reports that 3D-printed homes can be built up to 40 per cent faster than standard houses. Research supports this. A study published in the MDPI journal Buildings found that 3D-printed walls can be completed in less than a week. In comparison, a timber-framed build can take six to seven weeks to complete. Fewer workers are required. Some projects operate with only two or three people on site.

Cost and waste

RNZ reports that 3D-printed homes cost about the same as weatherboard houses. They are cheaper than traditional concrete builds.

The savings come from reduced labour and lower material waste. The printing process uses only the material required for the structure.

Qorox reports lower emissions from its system. The MDPI study found that 3D-printed homes produce about 20 per cent less carbon than timber homes and 25 per cent less than steel-framed builds.

Strength and performance

Concrete homes are designed for durability. RNZ reports they can last up to three times longer than timber houses. The material can also be recycled at the end of its life.

Concrete also improves thermal performance. It stores heat and releases it slowly, which helps maintain a stable indoor temperature and reduces heating demand.

3D printing allows greater design flexibility. Complex shapes can be built without a high extra cost. Features such as curved walls are easier to achieve than with timber construction.

Why is uptake still low

Despite these advantages, 3D-printed housing remains limited in New Zealand. The MDPI study identifies several barriers.

High upfront costs

The technology is still developing. Key equipment and materials are often sourced from overseas. This increases costs and limits supply. Only a small number of companies operate in this area.

Consent and regulation

New Zealand’s building consent system is designed for traditional construction. New methods can face delays during the consent and sign-off process. Councils may have limited experience with 3D-printed buildings, which adds uncertainty.

Industry resistance

Timber construction dominates the market. Builders, developers, and buyers are familiar with it. New methods require different skills and carry more risk, which slows adoption.

Lack of data

There is limited local data on long-term performance. Environmental standards for 3D-printed materials are still developing. This makes it more difficult for regulators and developers to assess the technology.

Environmental trade-offs

3D printing reduces emissions overall, but concrete still has a carbon footprint. Cement production produces significant emissions.

An emerging technology

Research shows strong potential for 3D-printed housing in New Zealand. It offers faster construction, lower emissions, and improved performance.

The technology is being used to build homes, but it might be some time yet before this construction method reaches the mainstream.

Wider adoption will depend on updated regulations, stronger industry support, and better data. For now, 3D-printed housing remains an emerging option rather than a mainstream solution.