Yew Tree Living

1920s house renovation Berlin – renovation and extension of a historic home in Berlin.

Yew Tree Living

Renovation and Extension of a historic 1920s house in Berlin, Germany

The design concept for the renovation and extension of this 1920s Berlin house is the intersection of interior and exterior spaces. A new sequence of rooms connects the elevated kitchen with the living and dining room at garden level. The differentiation between the old and new is made visible through glazed joints.

Location

The existing house is part of a historically grown development structure along a lime tree-lined street. The deep plot retains several space-defining trees, including an old Irish Yew Tree (Taxus baccata) integrated into the terrace area.

Space

The entrance vestibule is in line with the extension’s facade, allowing visitors to look through the new building into the depths of the property as they enter the house. The extension is set against the garden-facing gable wall of the house. A large opening connects the raised kitchen to the new space. From the elevated vantage point of the kitchen, the nine-metre wide glass facade appears to fill the entire width of the garden.

Materiality

Exposed concrete surfaces, a polished screed floor and a solid oak staircase define the materiality of the interior. Original features of the historical house such as the staircase, windows, doors and fittings have been retained and refurbished. Externally, the new building is clad in light silver fir siding.

Energy concept and user comfort

The design decision to energetically upgrade the roof and windows preserves the historic character of the facades. For comfort, there is a solar thermal system and underfloor heating. The new layout and garden facade ensure constant sunlight. The roof is designed as a green roof.

Architects: Jens Brinkmann
Collaborators: Chiara Sanguin, Raquel Malagó Garcia, Carolina Vital do Rêgo
Photos: Anna Fraire, Matthias Heurich, Chiara Sanguin

Minimalist modern house extension in Berlin with large sliding glass doors, wooden cladding, and an integrated garden terrace.
Modern residential architecture in Berlin showcasing an open-plan living room transitioning into a paved patio with contemporary outdoor furniture.
Modern dining room interior featuring an exposed concrete wall, minimalist design furniture, large floor-to-ceiling windows, and bright open space.
Modern open-plan living room with an exposed concrete wall, freestanding black fireplace stove, modular white sofa, and large floor-to-ceiling glass windows.
Architectural detail of a sustainable wooden facade under construction, showing horizontal timber cladding slats over a black insulation layer.
Close-up architectural detail of a corner joint on a modern timber-clad facade, highlighting the precise horizontal wood slats and natural shadow play.
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Honourable Mention, Greenhouse Restaurant, Iceland

Honourable Mention, Greenhouse Restaurant

Mývatn, Iceland

United Architektur won an honorable mention in an international design competition for a greenhouse restaurant in Iceland. The competition’s idea is derived from Iceland’s growing greenhouse revolution. It seeks to use its local renewable resources to support food production and suggest iconic solutions for the ‘farm-to-table’ concept. Named “Mývatn Windows”, the project unites a large-scale greenhouse and a restaurant within the spectacular landscape of Mývatn Natural Baths, Hverfjall volcano and Lake Mývatn in the distance. The restaurant opens on all sides, a technique that strengthens the building’s relationship to its place. A single long window in the facade has an undisrupted view of the landscape, while the windows to the side and rear visually connect the restaurant to the greenhouse and birch tree gardens.

Participation in the competition provided a platform to explore new possibilities for future responsive architecture. United took advantage of the opportunity to learn from combining two defined building typologies, ultimately creating a new cultural program in Iceland.

Farm to table

The design uses a farm-to-table approach – an ecologically transparent production process from planting, farming and processing in the greenhouse to eating fresh fruit and vegetables in the restaurant. This process runs through the three modules, starting from the greenhouse to the functional block and the restaurant. Each module shares important visual and physical relationships with the other.

future responsive design

United chose to work alongside Iceland’s reforestation program whose long-term objective is to re-establish forests in up to 25% of the country’s area. As an educational gesture to this program, two birch tree gardens were designed between the polycarbonate wall planes of the restaurant. The number of green areas is maximised. Moss fields, planted stone walls, birch tree gardens and green roofs increase the building’s green footprint and act as a stormwater management system.

All building modules use the geothermal energy from the local Bjarnarflag Geothermal Power Station, the first built in Iceland. It supports the heating system in the restaurant, as well as root level heating and the radiators in the greenhouse.

Relationship to Place

Mývatn Windows takes the characteristic of transparency from the greenhouse structure as a departing point for the design. Two large-scale planes of polycarbonate on a steel structure enclose the restaurant, forming a physical coherency with the greenhouse. This gives the building a sense of lightness within the landscape, merging with the horizon.

The greenhouse aesthetic is translated inside the restaurant. Polycarbonate ceiling panels diffuse soft light into the restaurant while their form reinterprets the shape and pattern of the greenhouse roof. Contrary to the exterior, the lightweight glulam timber trusses adapt to the human scale.

Architects: Jens Brinkmann
Collaborators: Nicole Salfatis Sadka, Chiara Sanguin, Emily Pearce
Renders: Thomas Saint-Guillain

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Start-Up Incubator, Cottbus

Start-up incubator and co-working project

Start-up Incubator/Co-working Space

Cottbus, Germany

The Start-Up Incubator and Co-working Space in Cottbus official opened on October 15th 2021. The building aims to promote innovation and creativity to generate new forms of work in both the city of Cottbus and surrounding Lausitz region in the wake of the political decision to phase out coal nationwide. Located next to the campus of the Brandenburg Institute of Technology (BTU), it concentrates tech start-up activities in a single center while adding another resourceful community building anchored along the axis of principle buildings in the campus.

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Multi-layer Façade
The dynamic exterior façade is made of perforated carbon fibre textile panels that provide shading and act as semi-transparent screens for private working areas of the building. Behind the shading screens, the wall is clad with perforated aluminum sheets fixed to panels with a black UV resistant membrane. Sustainable prefabricated timber wall panels are integrated between the concrete slab structure and are left exposed on the inside.

Public Threshold
The architecture is designed to welcome community use. The ground floor becomes emblematic of this idea with its predominantly glazed façade that creates a transparent connection between happenings inside the building and in the public square. Combined with the textile shading elements projecting out into the sidewalk, the interior space becomes a natural extension to the sidewalk, street and new community square.

Multi-Functional Foyer
The entrance foyer and the ground floor workshops form the communicative center of the building. The foyer is a multifunctional space, serving simultaneously as an access zone, public work area and lounge with a coffee bar. The level difference between the entrance and the area for workshops is designed as a staircase and seating grandstand for informal presentations and events.  The foyer’s façade can be opened up to place outdoor seating beneath the extended marquees.

Co-working Office Spaces
The large co-working office spaces on the 1st floor contain desks that can be rented by start-up founders. Further working spaces with mobile partition walls and independent offices can be found throughout the building. Furniture was sourced from the Spanish interior design company, Dynamobel.
The prefabricated timber wall panels are exposed from the inside. Alongside the concrete columns Acoustic baffles, lighting fixtures and air conditioning systems form part of the buildings transparent design aesthetic and expression of materials.

Design Architects: Prof. Bernd Huckriede, Dr. Jens Brinkmann, Ludwig Heimbach. Further planning in co-operation with Cottbuser Gesellschaft für Gebäudeerneuerung und Stadtentwicklung. The project was funded by the State of Brandenburg.

Ground-level view of a building pavilion showing open folding glass doors, with people sitting at minimalist white outdoor tables and chairs on a paved terrace.
Wide exterior shot of a three-story institutional building wrapped in a dynamic, multi-layered skin of silver mesh panels and glass windows above a fenced perimeter.
Exterior perspective of a contemporary office structure highlighting its geometric, overlapping mesh facade screens and large ground-floor windows.
3D architectural exploded axonometric diagram on a black background, detailing the structural layers, interior spatial programming, and layouts of the multi-story building.
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Detailed architectural view along an outdoor steel grated balcony serving the FabLab, highlighting the open glass doors and the mechanical armature of the translucent facade shading panels.
Frontal elevation crop of the institutional building facade, showcasing the overlapping rhythm of gray mesh screens and contrastingly vibrant red sunshades under a blue sky.
Interior of a modern presentation hall featuring striking yellow flooring, rows of black designer chairs, floor-to-ceiling windows, and exposed industrial ceiling infrastructure.
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Looking down a concrete staircase with metal handrails into a bright building foyer featuring vibrant yellow flooring, a wooden wall panel, and people networking.
Interior view of the open event space showing wide concrete steps used as informal seating, a matching plywood service hub, and a bright yellow floor.
Modern open office work environment with long white desks, black swivel chairs, individual desk lamps, and linear acoustic baffles integrated into the concrete ceiling.
Bright seminar room with rows of modular white training tables, black chairs, an exposed concrete structural column, and acoustic ceiling panels.
Exterior terrace featuring a white table and chairs next to a black stucco wall, looking towards the steel framework and red backing of the building's facade shading system.
: Large industrial FabLab and workshop room with exposed concrete walls and ceiling, surface-mounted utility conduits, bright linear lighting strips, and black double doors.
Minimalist public restroom featuring a vibrant yellow floor and matching wall panel, raw concrete surfaces, a row of white sinks, and exposed metallic ceiling pipes.
Interior utility staircase constructed from precast concrete steps, framed by industrial steel mesh safety balustrades against a smooth fair-faced concrete wall.
Frontal view of an open elevator cabin with a striking crimson red interior, set within a raw, unfinished concrete structural wall.
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Architectural elevation drawing showing four modular bay studies of the building envelope, highlighting various cladding panel types, glazing options, and integrated mechanical textile shades.
Architectural drawing combining an interior elevation and a detailed building cross-section, illustrating how the dynamic external shading louvers attach to the multi-story concrete slab structure.
Architectural scale model of the building facade showing white translucent louvers at various angles of opening, with red miniature figures and dried yellow trees in the foreground.
Cross-section view of an architectural scale model exposing four office floors with miniature red scale figures, interior partitions, and a central pink cylindrical core.

House at the Park

Berlin new build residence

House at the Park

Berlin, Germany

Berlin new build residence – Our project for the new construction of the residential building in Berlin’s Steglitz-Zehlendorf district is designed as a courtyard house. The U-shaped structure is divided into three blocks arranged around the courtyard: the open-plan living and dining area, the private area and the access area.  The two-storey living space opens up to the adjacent park and garden via a large south-facing window. The house has a dark brick façade. Inside, exposed concrete, wooden surfaces made of oak, light wooden floors and a stone covering in the courtyard contrast with the basic white color of the walls and ceilings.

Sustainability and Ecological Concept

The residential building is an energy-efficiency house. The house uses ecological building materials and certified components. Every building material contributes to this. A mixture of reinforced concrete and T8 bricks is used as the load-bearing structure. The bricks make a decisive contribution to the building’s energy balance due to their higher thermal resistance. Another important goal is the economical use of building materials. Concrete components walls, ceilings and columns are minimized. Sustainable recycled concrete with CO2-reduced cement is used. The light color of this concrete is also an important design element of the exposed concrete walls and the minimalist interior. The house is heated and cooled by a geothermal system and brine-water heat pump. It also has controlled living space ventilation and additional cooling ceilings. The roof is planned as a green roof with a photovoltaic system.

Architect: Jens Brinkmann
Collaborators: Aleyna Pakize Mutlu, Giovanna Catullo, Juliana Ambros Cammerer

Minimalist architectural site plan drawing showing the building footprint with green roofs, property boundaries, and surrounding park trees.
Bright minimalist interior rendering featuring double height exposed concrete walls, open mezzanine gallery, floor to ceiling windows, and a grand piano.
3D architectural rendering of an internal paved courtyard framed by black aluminum glass facades, showing an integrated kitchen and living room with a grand piano.
Modern courtyard rendering showing a ground floor home gym equipped with workout machines, viewed through large structural glass panes.
Upper floor architectural rendering showcasing an internal terrace with grey floor tiles and a minimalist lounge chair, viewed through expansive glass partitioning.

2nd Prize, River Pop-up Restaurant, Canada

River Pop-up Restaurant

Winnipeg, Canada

The RAW:almond river pop-up restaurant is located in the Forks neighborhood, an important historic public area and green space in downtown Winnipeg. For 21 days, the temporary restaurant will offer new culinary experiences. The restaurant has three total seating spaces. Each seating space has a different guest chef for three consecutive nights. It stands on the frozen water at the junction of Red River and Assiniboine River and will be a part of the skating rinks, trails, and snow park structures erected in Forks during winter.

1) Kitchen as stage
We propose a round building to emphasise the idea of the central kitchen with the restaurant being organized around it. The visible preparation of the food, as in a Sushi restaurant, serves as an event as well as a guarantee for quality dining.

2) Sensorial space
We want to present cooking and eating as an entire sensory experience. Through smelling, watching, hearing, and tasting, our spatial concept emphasizes food as the major component. For the customer, the space offers an active participatory role in the event of cooking which is different to a conventional restaurant.

3) Chef as artist
By staging the chef as artist, we would like to follow on from the concept of last year’s and the year before that’s restaurant, taking into account the growing significance of the kitchen. In 2013, the seating space and kitchen were still separate entities; whereas in 2014, the kitchen box had already been included in the overall space. For 2015, we propose one single space for seating and kitchen.

Architects: Jens Brinkmann
Collaborators: Taehun Oh, Quentin Rihoux

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Meyer-Köring Law Firm, Berlin

Law firm office design in Berlin

Meyer-Köring Law Firm

Berlin, Germany

This law firm office design in Berlin shapes the new Berlin‑Mitte workspace of Meyer‑Köring, a law firm based in Bonn and Berlin, including the reception, conference room, waiting area and library.

The project involved the design of furniture, a conference table, a sideboard as well as library book shelves and a waiting/work table. The design concept follows the simple idea of lightness and openness: table tops, the sideboard and book shelves seem to float in space. At the same time, the use of innovative materials such as fibre concrete contrasts the impression of lightness creating an extraordinary spatial expression. Simplicity and generosity generate a very good working atmosphere.

Architects: Jens Brinkmann
Collaborators: Katharina Wagner, Julie Biron
Photos: Giorgi Sautaschvili

Modern office interior design showing a conference room enclosed by a seamless glass partition wall, featuring minimalist white shelving and classic wooden parquet flooring.
Spacious corporate meeting room with white custom library shelving spanning across the walls, black leather swivel chairs, and sleek glass partitions under a bright white ceiling.
Interior view of a spacious law firm conference room featuring a long minimalist white meeting table, black leather chairs, and elegant herringbone parquet flooring.
3D architectural model rendering on a black background, showing a minimalist white room study with two doorways, a long table, and scale figures.
3D interior design model rendering showcasing a spatial layout study for a law firm library with floor-to-ceiling bookshelves and a central white table.

Akademie für Malerei

Akademie für Malerei

Art school and Gallery, Berlin-Charlottenburg, Germany

The Akademie für Malerei and Gallery ROOT in Berlin-Charlottenburg opened its new premises to the public on September 30th, 2021. The owner wished to relocate her workshop, gallery, studio and storage space to a new building. The rooms on the street act as public gallery space for Galerie ROOT, while the rooms to the rear support the private painting school. Along the interior axis, some interior walls were demolished and new partitions were put in place to improve the connection between all working and storage spaces. The ceiling roses, moldings and some doors were preserved due to their historical and aesthetic value.

Spatial Layers

Our design intervention deals with the organisation and overlapping of spatial layers and is achieved by combining function with aesthetics. The layers are emphasised with varying transparent, semi-transparent and closed division walls. One of these is the custom-made polycarbonate door that creates a flexible division between the front gallery spaces and the workshop spaces behind. Due to the depth of the building and the limited possibility to let in natural light, the design for this partition is partially transparent, with a clerestory window above. In this way, the rooms behind borrow natural light from the street façade. Additionally, the light concept emphasises the continuity of space from the front gallery towards the rear workshop spaces.

Hanging Shelves
We designed a timber shelving system that will over time be filled with student art work and class material. Its light, hanging structure makes use of the high ceiling space for storage without interfering with valuable workshop space. The timber batten structure also creates divisions to organise paintings and canvases. In this way, the shelves become both a functional and aesthetic design element.

Architects: Jens Brinkmann
Collaborators: Duc Minh Le, Tuang Anh Nguyen, Jerome Schloh, Cédric Razanakoto

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1st Prize Housing, Aulendorf

Aulendorf Housing

Aulendorf, Germany

Aulendorf Housing is an urban design competition for the future of residential housing in Aulendorf, a city close to Lake Constance. Aulendorf is characterized by its proximity to the city and the historical park landscape (historical baroque and landscape gardens). The strong unity of urbanity and nature became the leading idea of the design proposal. The project defines five areas of focus, which show strong variations in character and scale: the square in front of the palace, the baroque gardens, the Parkstrasse high density residential area, the Schussental Sanatorium and the low density residential area of Safranmoos.

Architects: Dr. Jens Brinkmann, Alejandro Tomás Roldan
Landscape Architect: Dana Matschek

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Kindergarten at Schloßplatz, Münster

Nursery school design in Golßen

Kindergarten at Schloßplatz

Münster, Germany
Town Planning Idea: Between garden and city

In this Nursery school design in Golßen the differentiation between the side of the city and the side of the garden becomes the central idea of our construction plan for the kindergarten at the Schlossplatz in Münster. The side of the city is used as a forecourt. The recess of the ground floor marks the generously covered entrance, while the orientation of the terrace towards the garden refers to the overall landscape of the former town fortification with its promenade and redoubts.

Terraces and Children’s Rooms

Four children’s rooms have access to the terraces, while the fifth, which lies towards the side of the city, has a large glazed balcony. It has a decisive influence on the appearance of the building. By rising over the edge of the building it allows the children to see the garden below. The flight of stairs that go along the wall, which is under preservation orders, serve as the direct entrance to the garden.

Children’s Scale

The balustrade of the flight of stairs has a handrail that allows the children to see the gatehouse. The outer window jambs are connected to folding arm awnings that provide a flexible protection from the sun. The extent to which the awning is opened individually determines the view. On the inside, the windows are formed to be 40 cm high large seating niches where the children can read, play and look outside.

Material and sustainability

The building is constructed from concrete. The facade is covered in overlapping brick tiles. The play of red combined with the façade’s relief gives a spatial depth to the surface. The tiles allow a long durability, minimum maintenance and can be easily be recycled.

Architects: Jens Brinkmann
Collaborators: Carolina Vital do Rêgo, Minh Le, Tuan Anh Nguyen, Soleïa Pierre
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Furniture Design

Furniture Design

Archive Cabinet
Meyer-Köring Law Firm, Berlin/Bonn, Germany

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