Wates Residential and Cardiff Council have installed Cardiff’s first sustainable, modular homes, at a brownfield site on Crofts Street in Plasnewydd.

The nine two-bedroom properties, which have been built offsite using modern methods of construction (MMC), will be lowered onto their final position on-site with all the groundworks and external hard and soft landscaping completed.

Delivered through Wates Residential and INNO, a joint venture between architects, Rogers Stirk Harbour + Partners and AECOM, this is the first time this method of offsite construction has been used by Cardiff Council to deliver permanent homes for families living in the city. The method not only enables the units to be built and installed in record time, but will also use the latest technology and construction materials to create net-zero carbon buildings that are 90% more energy efficient than standard homes built to current Building Regulations. They will be extremely airtight, meaning they are well insulated and residents will see huge savings on their bills .

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In recognition of their environmental credentials, the homes have achieved Grade A in Predicted Energy Efficiency and Environmental Impact (CO2) ratings. The houses will have solar panels on their roofs and MEV Heat Recovery with electric heating elements, so that they will not be required to connect to the mains gas service and will emit significantly less CO2 than a standard home.

Offsite construction also creates less disruption to residents, as the overall build programme and onsite activity is greatly reduced, with the units being designed to the same style as the terraced housing in the area.

Once the units are installed, all services will be connected, followed by the installation of electricity and plumbing, with the Council making the homes available to tenants on its existing housing waiting list in just five weeks.

Edward Rees, Wates Residential Regional Director, Cardiff, said: "It is incredible to see this unused plot of land transformed into affordable homes. We care about the communities in which we operate and aim to design and build homes that put local people first. And, by using innovative modern methods of construction, we’re not only able to deliver these units just five weeks from now, but we are also creating homes that will support Cardiff and its residents in reducing their energy consumption and contributing to a more sustainable future.

"We are committed to eliminating waste and carbon from our operations by 2025, well ahead of the Government's own environmental targets, and we’re working collaboratively with customers, supply chain and joint venture partners to find better and more innovative ways to reduce waste, reduce energy consumption and enhance the natural environment."