Fachklinik Weser-Ems, a specialized addiction treatment center in Oldenburg, is a notable project for the urban regeneration of an industrial site. Embracing the concept of "natural healing," the design creates efficient healthcare spaces with a clear structure, as well as provides a comfortable treatment process in natural environment, initiating a harmonious relationship between the built environment and the surrounding natural elements.

The Fachklinik Weser-Ems is an addiction treatment center built on an industrial site, which stands as a leading project of the "white campus," one of Oldenburg's urban regeneration plans. 

It primarily targets patients with alcohol, drug, gambling, and media addiction, providing personalized and modular rehabilitation treatment; and aims to promote interdisciplinary cooperation among doctors, therapists, and educators, facilitating patients' return to normal work and life.

The building consists of two interlocked cubes, a four-story one on the south and a three-story one on the north. 

The two cubes overlap with each other to achieve efficient division and connectivity of functional spaces, and each forms a garden courtyard inside, bringing nature into the interior and providing rich lighting and landscape views. 

On the façade, the first floor of the building is designed as a brick base, incorporating the exposed deep red brick facade;  the upper floors follow the design guideline of  "white campus" and adopts a white gypsum facade, combined with windows of different widths to form a vibrant rhythm.

The Center is designed to accommodate 20 outpatient beds and 80 inpatient beds, with treatment facilities specifically designed for disabled individuals. Considering the center's complex needs regarding infrastructure, land use, economy, etc., a clear structure and efficient layout have been designed to create a healing space that is friendly and humanized.

From the low to high floors, the building gradually transforms from a semi-public space to a private space. 

On the north side of the first floor, the building houses its main public functions, including a rest area, dining area, group activity room, administrative offices, and treatment studio (with art therapy, occupational therapy, and teaching kitchen). Patients or visitors can directly access these areas through the spacious and bright entrance hall, enjoying the beautiful scenery of the garden courtyard. 

On the south side of the first floor is a non-public medical area, including physical therapy, psychological therapy, and related nursing rooms. It's worth mentioning that the nursing room also serves as an inquiry and reception area for the inpatient area on the upper floors.

The second to fourth floors house the treatment area and the inpatient area. The inpatient area occupies the relatively higher floors to provide patients with a more private environment. It includes well-equipped wards, as well as recreation and group activity rooms to stimulate communication among doctors and patients, espeicially fostering interaction for isolated patients to help them rebuild personal social relationships.

The design of the ward rooms carefully considers the scale, brightness, and orientation, creating a fresh and soothing atmosphere for patients. Additionally, all wards have flexible floor plans to accommodate changes in functional requirements.

While supporting efficient operation, the design also emphasizes the 'natural healing' concept, promoting a more comfortable treatment process through both the internal and external landscapes, making 'nature' an important factor in treatment. 

The internal courtyards combine plants with stone features to create simple landscapes. Outside the building, the southwest entrance is hidden in the forest, creating a peaceful atmosphere, while the northeast open space is designed as a sports field, offering patients a healing space that feels protected and safe.

On the first floor, floor-to-ceiling windows are used to create a visual connection between the indoor and outdoor spaces, transforming a series of functional areas into inviting public spaces. 

On the upper floors, each floor is designed with a terrace, allowing the corridors surrounding the courtyard to not only provide visual enjoyment of the garden landscape but also create a spatial closeness to nature. The wards are arranged along the building's perimeter, allowing patients to enjoy the surrounding scenery, further promoting natural healing and providing humanized care.