First tenants move into 3D printed housing in Lünen, Germany | VoxelMatters

From the article

>A [3D printed social housing project](https://www.voxelmatters.com/germany-receives-europes-first-3d-printed-social-housing-apartment/) that broke ground in late 2023 has been completed. The development, based in Lünen, Germany, was funded by the state of North Rhine-Westphalia and consists of six affordable units measuring between 61m² (670 square feet) to 81m² (890 square feet). According to [German news sources](https://www1.wdr.de/nachrichten/ruhrgebiet/haus-drucker-luenen-100.html), the first tenants, Joachim and Constanze Lippmann, moved in in January. 

>We first wrote about the housing project when it was announced and now, one-and-a-half years later, we are heartened to see that it has been completed successfully. The building process, which brought on construction 3D printing specialist [PERI 3D Construction](https://www.voxelmatters.directory/company/peri/), relied on a combination of additive manufacturing and more conventional construction methods. This hybrid approach was in part due to the fact that the building is three stories tall: while the first two stories were constructed using a [COBOD](https://www.voxelmatters.directory/company/cobod/) 3D printer, the third story was made using timber and cladding. Additionally, the apartment building integrates a conventional foundation and filigree slabs.

It’s usually not obvious, but the layer lines are a purposeful aesthetic. There’s a simple printerhead attachment that smooths the outside as it goes if they wanted to remove the lines.